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#ifndef ITEM_FUNC_INCLUDED #define ITEM_FUNC_INCLUDED /* Copyright (c) 2000, 2016, Oracle and/or its affiliates. Copyright (c) 2009, 2016, MariaDB This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */ /* Function items used by mysql */ #ifdef USE_PRAGMA_INTERFACE #pragma interface /* gcc class implementation */ #endif #ifdef HAVE_IEEEFP_H extern "C" /* Bug in BSDI include file */ { #include <ieeefp.h> } #endif #include "sql_udf.h" // udf_handler #include "my_decimal.h" // string2my_decimal #include <cmath> class Item_func :public Item_func_or_sum { void sync_with_sum_func_and_with_field(List<Item> &list); protected: String *val_str_from_val_str_ascii(String *str, String *str2); virtual bool check_arguments() const { return check_argument_types_scalar(0, arg_count); } bool check_argument_types_like_args0() const; bool check_argument_types_scalar(uint start, uint end) const; bool check_argument_types_traditional_scalar(uint start, uint end) const; bool check_argument_types_or_binary(const Type_handler *handler, uint start, uint end) const; bool check_argument_types_can_return_int(uint start, uint end) const; bool check_argument_types_can_return_real(uint start, uint end) const; bool check_argument_types_can_return_str(uint start, uint end) const; bool check_argument_types_can_return_text(uint start, uint end) const; bool check_argument_types_can_return_date(uint start, uint end) const; bool check_argument_types_can_return_time(uint start, uint end) const; public: table_map not_null_tables_cache; enum Functype { UNKNOWN_FUNC,EQ_FUNC,EQUAL_FUNC,NE_FUNC,LT_FUNC,LE_FUNC, GE_FUNC,GT_FUNC,FT_FUNC, LIKE_FUNC,ISNULL_FUNC,ISNOTNULL_FUNC, COND_AND_FUNC, COND_OR_FUNC, XOR_FUNC, BETWEEN, IN_FUNC, MULT_EQUAL_FUNC, INTERVAL_FUNC, ISNOTNULLTEST_FUNC, SP_EQUALS_FUNC, SP_DISJOINT_FUNC,SP_INTERSECTS_FUNC, SP_TOUCHES_FUNC,SP_CROSSES_FUNC,SP_WITHIN_FUNC, SP_CONTAINS_FUNC,SP_OVERLAPS_FUNC, SP_STARTPOINT,SP_ENDPOINT,SP_EXTERIORRING, SP_POINTN,SP_GEOMETRYN,SP_INTERIORRINGN, SP_RELATE_FUNC, NOT_FUNC, NOT_ALL_FUNC, TEMPTABLE_ROWID, NOW_FUNC, NOW_UTC_FUNC, SYSDATE_FUNC, TRIG_COND_FUNC, SUSERVAR_FUNC, GUSERVAR_FUNC, COLLATE_FUNC, EXTRACT_FUNC, CHAR_TYPECAST_FUNC, FUNC_SP, UDF_FUNC, NEG_FUNC, GSYSVAR_FUNC, IN_OPTIMIZER_FUNC, DYNCOL_FUNC, JSON_EXTRACT_FUNC, CASE_SEARCHED_FUNC, // Used by ColumnStore/Spider CASE_SIMPLE_FUNC // Used by ColumnStore/spider }; enum Type type() const { return FUNC_ITEM; } virtual enum Functype functype() const { return UNKNOWN_FUNC; } Item_func(THD *thd): Item_func_or_sum(thd) { with_sum_func= 0; with_field= 0; with_param= 0; } Item_func(THD *thd, Item *a): Item_func_or_sum(thd, a) { with_sum_func= a->with_sum_func; with_param= a->with_param; with_field= a->with_field; } Item_func(THD *thd, Item *a, Item *b): Item_func_or_sum(thd, a, b) { with_sum_func= a->with_sum_func || b->with_sum_func; with_param= a->with_param || b->with_param; with_field= a->with_field || b->with_field; } Item_func(THD *thd, Item *a, Item *b, Item *c): Item_func_or_sum(thd, a, b, c) { with_sum_func= a->with_sum_func || b->with_sum_func || c->with_sum_func; with_field= a->with_field || b->with_field || c->with_field; with_param= a->with_param || b->with_param || c->with_param; } Item_func(THD *thd, Item *a, Item *b, Item *c, Item *d): Item_func_or_sum(thd, a, b, c, d) { with_sum_func= a->with_sum_func || b->with_sum_func || c->with_sum_func || d->with_sum_func; with_field= a->with_field || b->with_field || c->with_field || d->with_field; with_param= a->with_param || b->with_param || c->with_param || d->with_param; } Item_func(THD *thd, Item *a, Item *b, Item *c, Item *d, Item* e): Item_func_or_sum(thd, a, b, c, d, e) { with_sum_func= a->with_sum_func || b->with_sum_func || c->with_sum_func || d->with_sum_func || e->with_sum_func; with_field= a->with_field || b->with_field || c->with_field || d->with_field || e->with_field; with_param= a->with_param || b->with_param || c->with_param || d->with_param || e->with_param; } Item_func(THD *thd, List<Item> &list): Item_func_or_sum(thd, list) { set_arguments(thd, list); } // Constructor used for Item_cond_and/or (see Item comment) Item_func(THD *thd, Item_func *item): Item_func_or_sum(thd, item), not_null_tables_cache(item->not_null_tables_cache) { } bool fix_fields(THD *, Item **ref); void cleanup() { Item_func_or_sum::cleanup(); used_tables_and_const_cache_init(); } void fix_after_pullout(st_select_lex *new_parent, Item **ref, bool merge); void quick_fix_field(); table_map not_null_tables() const; void update_used_tables() { used_tables_and_const_cache_init(); used_tables_and_const_cache_update_and_join(arg_count, args); } COND *build_equal_items(THD *thd, COND_EQUAL *inherited, bool link_item_fields, COND_EQUAL **cond_equal_ref); SEL_TREE *get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr) { DBUG_ENTER("Item_func::get_mm_tree"); DBUG_RETURN(const_item() ? get_mm_tree_for_const(param) : NULL); } bool eq(const Item *item, bool binary_cmp) const; virtual Item *key_item() const { return args[0]; } void set_arguments(THD *thd, List<Item> &list) { Item_args::set_arguments(thd, list); sync_with_sum_func_and_with_field(list); list.empty(); // Fields are used } void split_sum_func(THD *thd, Ref_ptr_array ref_pointer_array, List<Item> &fields, uint flags); virtual void print(String *str, enum_query_type query_type); void print_op(String *str, enum_query_type query_type); void print_args(String *str, uint from, enum_query_type query_type); inline bool get_arg0_date(MYSQL_TIME *ltime, ulonglong fuzzy_date) { DBUG_ASSERT(!(fuzzy_date & TIME_TIME_ONLY)); Datetime dt(current_thd, args[0], fuzzy_date); return (null_value= dt.copy_to_mysql_time(ltime)); } bool is_null() { update_null_value(); return null_value; } void signal_divide_by_null(); friend class udf_handler; Field *create_field_for_create_select(TABLE *table) { return tmp_table_field_from_field_type(table); } Item *get_tmp_table_item(THD *thd); my_decimal *val_decimal(my_decimal *); void fix_char_length_ulonglong(ulonglong max_char_length_arg) { ulonglong max_result_length= max_char_length_arg * collation.collation->mbmaxlen; if (max_result_length >= MAX_BLOB_WIDTH) { max_length= MAX_BLOB_WIDTH; maybe_null= 1; } else max_length= (uint32) max_result_length; } Item *transform(THD *thd, Item_transformer transformer, uchar *arg); Item* compile(THD *thd, Item_analyzer analyzer, uchar **arg_p, Item_transformer transformer, uchar *arg_t); void traverse_cond(Cond_traverser traverser, void * arg, traverse_order order); bool eval_not_null_tables(void *opt_arg); // bool is_expensive_processor(void *arg); // virtual bool is_expensive() { return 0; } inline void raise_numeric_overflow(const char *type_name) { char buf[256]; String str(buf, sizeof(buf), system_charset_info); str.length(0); print(&str, QT_NO_DATA_EXPANSION); my_error(ER_DATA_OUT_OF_RANGE, MYF(0), type_name, str.c_ptr_safe()); } inline double raise_float_overflow() { raise_numeric_overflow("DOUBLE"); return 0.0; } inline longlong raise_integer_overflow() { raise_numeric_overflow(unsigned_flag ? "BIGINT UNSIGNED": "BIGINT"); return 0; } inline int raise_decimal_overflow() { raise_numeric_overflow("DECIMAL"); return E_DEC_OVERFLOW; } /** Throw an error if the input double number is not finite, i.e. is either +/-INF or NAN. */ inline double check_float_overflow(double value) { return std::isfinite(value) ? value : raise_float_overflow(); } /** Throw an error if the input BIGINT value represented by the (longlong value, bool unsigned flag) pair cannot be returned by the function, i.e. is not compatible with this Item's unsigned_flag. */ inline longlong check_integer_overflow(longlong value, bool val_unsigned) { if ((unsigned_flag && !val_unsigned && value < 0) || (!unsigned_flag && val_unsigned && (ulonglong) value > (ulonglong) LONGLONG_MAX)) return raise_integer_overflow(); return value; } /** Throw an error if the error code of a DECIMAL operation is E_DEC_OVERFLOW. */ inline int check_decimal_overflow(int error) { return (error == E_DEC_OVERFLOW) ? raise_decimal_overflow() : error; } bool has_timestamp_args() { DBUG_ASSERT(fixed == TRUE); for (uint i= 0; i < arg_count; i++) { if (args[i]->type() == Item::FIELD_ITEM && args[i]->field_type() == MYSQL_TYPE_TIMESTAMP) return TRUE; } return FALSE; } bool has_date_args() { DBUG_ASSERT(fixed == TRUE); for (uint i= 0; i < arg_count; i++) { if (args[i]->type() == Item::FIELD_ITEM && (args[i]->field_type() == MYSQL_TYPE_DATE || args[i]->field_type() == MYSQL_TYPE_DATETIME)) return TRUE; } return FALSE; } bool has_time_args() { DBUG_ASSERT(fixed == TRUE); for (uint i= 0; i < arg_count; i++) { if (args[i]->type() == Item::FIELD_ITEM && (args[i]->field_type() == MYSQL_TYPE_TIME || args[i]->field_type() == MYSQL_TYPE_DATETIME)) return TRUE; } return FALSE; } bool has_datetime_args() { DBUG_ASSERT(fixed == TRUE); for (uint i= 0; i < arg_count; i++) { if (args[i]->type() == Item::FIELD_ITEM && args[i]->field_type() == MYSQL_TYPE_DATETIME) return TRUE; } return FALSE; } Item* propagate_equal_fields(THD *thd, const Context &ctx, COND_EQUAL *cond) { /* By default only substitution for a field whose two different values are never equal is allowed in the arguments of a function. This is overruled for the direct arguments of comparison functions. */ Item_args::propagate_equal_fields(thd, Context_identity(), cond); return this; } bool excl_dep_on_table(table_map tab_map) { if (used_tables() & OUTER_REF_TABLE_BIT) return false; return !(used_tables() & ~tab_map) || Item_args::excl_dep_on_table(tab_map); } bool excl_dep_on_grouping_fields(st_select_lex *sel) { return Item_args::excl_dep_on_grouping_fields(sel); } /* We assume the result of any function that has a TIMESTAMP argument to be timezone-dependent, since a TIMESTAMP value in both numeric and string contexts is interpreted according to the current timezone. The only exception is UNIX_TIMESTAMP() which returns the internal representation of a TIMESTAMP argument verbatim, and thus does not depend on the timezone. */ virtual bool check_valid_arguments_processor(void *bool_arg) { return has_timestamp_args(); } virtual bool find_function_processor (void *arg) { return functype() == *(Functype *) arg; } void no_rows_in_result() { for (uint i= 0; i < arg_count; i++) { args[i]->no_rows_in_result(); } } void restore_to_before_no_rows_in_result() { for (uint i= 0; i < arg_count; i++) { args[i]->no_rows_in_result(); } } void convert_const_compared_to_int_field(THD *thd); /** Prepare arguments and setup a comparator. Used in Item_func_xxx with two arguments and a comparator, e.g. Item_bool_func2 and Item_func_nullif. args[0] or args[1] can be modified: - converted to character set and collation of the operation - or replaced to an Item_int_with_ref */ bool setup_args_and_comparator(THD *thd, Arg_comparator *cmp); }; class Item_real_func :public Item_func { public: Item_real_func(THD *thd): Item_func(thd) { collation.set_numeric(); } Item_real_func(THD *thd, Item *a): Item_func(thd, a) { collation.set_numeric(); } Item_real_func(THD *thd, Item *a, Item *b): Item_func(thd, a, b) { collation.set_numeric(); } Item_real_func(THD *thd, List<Item> &list): Item_func(thd, list) { collation.set_numeric(); } String *val_str(String*str); my_decimal *val_decimal(my_decimal *decimal_value); longlong val_int() { DBUG_ASSERT(fixed == 1); return Converter_double_to_longlong(val_real(), unsigned_flag).result(); } bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { return get_date_from_real(ltime, fuzzydate); } const Type_handler *type_handler() const { return &type_handler_double; } bool fix_length_and_dec() { decimals= NOT_FIXED_DEC; max_length= float_length(decimals); return FALSE; } }; /** Functions whose returned field type is determined at fix_fields() time. */ class Item_hybrid_func: public Item_func, public Type_handler_hybrid_field_type, public Type_geometry_attributes { protected: bool fix_attributes(Item **item, uint nitems); public: Item_hybrid_func(THD *thd): Item_func(thd) { } Item_hybrid_func(THD *thd, Item *a): Item_func(thd, a) { } Item_hybrid_func(THD *thd, Item *a, Item *b): Item_func(thd, a, b) { } Item_hybrid_func(THD *thd, Item *a, Item *b, Item *c): Item_func(thd, a, b, c) { } Item_hybrid_func(THD *thd, List<Item> &list): Item_func(thd, list) { } Item_hybrid_func(THD *thd, Item_hybrid_func *item) :Item_func(thd, item), Type_handler_hybrid_field_type(item) { } const Type_handler *type_handler() const { return Type_handler_hybrid_field_type::type_handler(); } Field::geometry_type get_geometry_type() const { return Type_geometry_attributes::get_geometry_type(); }; void set_geometry_type(uint type) { Type_geometry_attributes::set_geometry_type(type); } }; /** Functions that at fix_fields() time determine the returned field type, trying to preserve the exact data type of the arguments. The descendants have to implement "native" value methods, i.e. str_op(), date_op(), int_op(), real_op(), decimal_op(). fix_fields() chooses which of the above value methods will be used during execution time, according to the returned field type. For example, if fix_fields() determines that the returned value type is MYSQL_TYPE_LONG, then: - int_op() is chosen as the execution time native method. - val_int() returns the result of int_op() as is. - all other methods, i.e. val_real(), val_decimal(), val_str(), get_date(), call int_op() first, then convert the result to the requested data type. */ class Item_func_hybrid_field_type: public Item_hybrid_func { /* Helper methods to make sure that the result of decimal_op(), str_op() and date_op() is properly synched with null_value. */ bool date_op_with_null_check(MYSQL_TIME *ltime) { bool rc= date_op(ltime, 0); DBUG_ASSERT(!rc ^ null_value); return rc; } bool time_op_with_null_check(MYSQL_TIME *ltime) { bool rc= time_op(ltime); DBUG_ASSERT(!rc ^ null_value); DBUG_ASSERT(rc || ltime->time_type == MYSQL_TIMESTAMP_TIME); return rc; } String *str_op_with_null_check(String *str) { String *res= str_op(str); DBUG_ASSERT((res != NULL) ^ null_value); return res; } my_decimal *decimal_op_with_null_check(my_decimal *decimal_buffer) { my_decimal *res= decimal_op(decimal_buffer); DBUG_ASSERT((res != NULL) ^ null_value); return res; } bool make_zero_mysql_time(MYSQL_TIME *ltime, ulonglong fuzzydate) { bzero(ltime, sizeof(*ltime)); return null_value|= !(fuzzydate & TIME_FUZZY_DATES); } public: // Value methods that involve no conversion String *val_str_from_str_op(String *str) { return str_op_with_null_check(&str_value); } my_decimal *val_decimal_from_decimal_op(my_decimal *dec) { return decimal_op_with_null_check(dec); } longlong val_int_from_int_op() { return int_op(); } double val_real_from_real_op() { return real_op(); } // Value methods that involve conversion String *val_str_from_decimal_op(String *str); String *val_str_from_real_op(String *str); String *val_str_from_int_op(String *str); String *val_str_from_date_op(String *str); String *val_str_from_time_op(String *str); my_decimal *val_decimal_from_str_op(my_decimal *dec); my_decimal *val_decimal_from_real_op(my_decimal *dec); my_decimal *val_decimal_from_int_op(my_decimal *dec); my_decimal *val_decimal_from_date_op(my_decimal *dec); my_decimal *val_decimal_from_time_op(my_decimal *dec); longlong val_int_from_str_op(); longlong val_int_from_real_op(); longlong val_int_from_decimal_op(); longlong val_int_from_date_op(); longlong val_int_from_time_op(); double val_real_from_str_op(); double val_real_from_decimal_op(); double val_real_from_date_op(); double val_real_from_time_op(); double val_real_from_int_op(); bool get_date_from_str_op(MYSQL_TIME *ltime, ulonglong fuzzydate); bool get_date_from_real_op(MYSQL_TIME *ltime, ulonglong fuzzydate); bool get_date_from_decimal_op(MYSQL_TIME *ltime, ulonglong fuzzydate); bool get_date_from_int_op(MYSQL_TIME *ltime, ulonglong fuzzydate); public: Item_func_hybrid_field_type(THD *thd): Item_hybrid_func(thd) { collation.set_numeric(); } Item_func_hybrid_field_type(THD *thd, Item *a): Item_hybrid_func(thd, a) { collation.set_numeric(); } Item_func_hybrid_field_type(THD *thd, Item *a, Item *b): Item_hybrid_func(thd, a, b) { collation.set_numeric(); } Item_func_hybrid_field_type(THD *thd, Item *a, Item *b, Item *c): Item_hybrid_func(thd, a, b, c) { collation.set_numeric(); } Item_func_hybrid_field_type(THD *thd, List<Item> &list): Item_hybrid_func(thd, list) { collation.set_numeric(); } double val_real() { DBUG_ASSERT(fixed); return Item_func_hybrid_field_type::type_handler()-> Item_func_hybrid_field_type_val_real(this); } longlong val_int() { DBUG_ASSERT(fixed); return Item_func_hybrid_field_type::type_handler()-> Item_func_hybrid_field_type_val_int(this); } my_decimal *val_decimal(my_decimal *dec) { DBUG_ASSERT(fixed); return Item_func_hybrid_field_type::type_handler()-> Item_func_hybrid_field_type_val_decimal(this, dec); } String *val_str(String*str) { DBUG_ASSERT(fixed); String *res= Item_func_hybrid_field_type::type_handler()-> Item_func_hybrid_field_type_val_str(this, str); DBUG_ASSERT(null_value == (res == NULL)); return res; } bool get_date(MYSQL_TIME *res, ulonglong fuzzy_date) { DBUG_ASSERT(fixed); return Item_func_hybrid_field_type::type_handler()-> Item_func_hybrid_field_type_get_date(this, res, fuzzy_date); } /** @brief Performs the operation that this functions implements when the result type is INT. @return The result of the operation. */ virtual longlong int_op()= 0; /** @brief Performs the operation that this functions implements when the result type is REAL. @return The result of the operation. */ virtual double real_op()= 0; /** @brief Performs the operation that this functions implements when the result type is DECIMAL. @param A pointer where the DECIMAL value will be allocated. @return - 0 If the result is NULL - The same pointer it was given, with the area initialized to the result of the operation. */ virtual my_decimal *decimal_op(my_decimal *)= 0; /** @brief Performs the operation that this functions implements when the result type is a string type. @return The result of the operation. */ virtual String *str_op(String *)= 0; /** @brief Performs the operation that this functions implements when field type is DATETIME or DATE. @return The result of the operation. */ virtual bool date_op(MYSQL_TIME *res, ulonglong fuzzy_date)= 0; /** @brief Performs the operation that this functions implements when field type is TIME. @return The result of the operation. */ virtual bool time_op(MYSQL_TIME *res)= 0; }; /* This class resembles SQL standard CASE-alike expressions: CASE and its abbreviations COALESCE, NULLIF, IFNULL, IF. <case expression> ::= <case abbreviation> | <case specification> */ class Item_func_case_expression: public Item_func_hybrid_field_type { public: Item_func_case_expression(THD *thd) :Item_func_hybrid_field_type(thd) { } Item_func_case_expression(THD *thd, Item *a) :Item_func_hybrid_field_type(thd, a) { } Item_func_case_expression(THD *thd, Item *a, Item *b) :Item_func_hybrid_field_type(thd, a, b) { } Item_func_case_expression(THD *thd, Item *a, Item *b, Item *c) :Item_func_hybrid_field_type(thd, a, b, c) { } Item_func_case_expression(THD *thd, List<Item> &list): Item_func_hybrid_field_type(thd, list) { } }; class Item_func_numhybrid: public Item_func_hybrid_field_type { protected: inline void fix_decimals() { DBUG_ASSERT(result_type() == DECIMAL_RESULT); if (decimals == NOT_FIXED_DEC) set_if_smaller(decimals, max_length - 1); } public: Item_func_numhybrid(THD *thd): Item_func_hybrid_field_type(thd) { } Item_func_numhybrid(THD *thd, Item *a): Item_func_hybrid_field_type(thd, a) { } Item_func_numhybrid(THD *thd, Item *a, Item *b): Item_func_hybrid_field_type(thd, a, b) { } Item_func_numhybrid(THD *thd, Item *a, Item *b, Item *c): Item_func_hybrid_field_type(thd, a, b, c) { } Item_func_numhybrid(THD *thd, List<Item> &list): Item_func_hybrid_field_type(thd, list) { } String *str_op(String *str) { DBUG_ASSERT(0); return 0; } bool date_op(MYSQL_TIME *ltime, ulonglong fuzzydate) { DBUG_ASSERT(0); return true; } bool time_op(MYSQL_TIME *ltime) { DBUG_ASSERT(0); return true; } }; /* function where type of result detected by first argument */ class Item_func_num1: public Item_func_numhybrid { public: Item_func_num1(THD *thd, Item *a): Item_func_numhybrid(thd, a) {} Item_func_num1(THD *thd, Item *a, Item *b): Item_func_numhybrid(thd, a, b) {} bool check_partition_func_processor(void *int_arg) { return FALSE; } bool check_vcol_func_processor(void *arg) { return FALSE; } }; /* Base class for operations like '+', '-', '*' */ class Item_num_op :public Item_func_numhybrid { public: Item_num_op(THD *thd, Item *a, Item *b): Item_func_numhybrid(thd, a, b) {} virtual void result_precision()= 0; virtual inline void print(String *str, enum_query_type query_type) { print_op(str, query_type); } bool fix_type_handler(const Type_aggregator *aggregator); void fix_length_and_dec_double() { count_real_length(args, arg_count); max_length= float_length(decimals); } void fix_length_and_dec_decimal() { unsigned_flag= args[0]->unsigned_flag & args[1]->unsigned_flag; result_precision(); fix_decimals(); } void fix_length_and_dec_int() { unsigned_flag= args[0]->unsigned_flag | args[1]->unsigned_flag; result_precision(); decimals= 0; set_handler(type_handler_long_or_longlong()); } void fix_length_and_dec_temporal(bool downcast_decimal_to_int) { set_handler(&type_handler_newdecimal); fix_length_and_dec_decimal(); if (decimals == 0 && downcast_decimal_to_int) set_handler(type_handler_long_or_longlong()); } bool need_parentheses_in_default() { return true; } }; class Item_int_func :public Item_func { public: /* QQ: shouldn't 20 characters be enough: Max unsigned = 18,446,744,073,709,551,615 = 20 digits, 20 characters Max signed = 9,223,372,036,854,775,807 = 19 digits, 19 characters Min signed = -9,223,372,036,854,775,808 = 19 digits, 20 characters */ Item_int_func(THD *thd): Item_func(thd) { collation.set_numeric(); fix_char_length(21); } Item_int_func(THD *thd, Item *a): Item_func(thd, a) { collation.set_numeric(); fix_char_length(21); } Item_int_func(THD *thd, Item *a, Item *b): Item_func(thd, a, b) { collation.set_numeric(); fix_char_length(21); } Item_int_func(THD *thd, Item *a, Item *b, Item *c): Item_func(thd, a, b, c) { collation.set_numeric(); fix_char_length(21); } Item_int_func(THD *thd, Item *a, Item *b, Item *c, Item *d): Item_func(thd, a, b, c, d) { collation.set_numeric(); fix_char_length(21); } Item_int_func(THD *thd, List<Item> &list): Item_func(thd, list) { collation.set_numeric(); fix_char_length(21); } Item_int_func(THD *thd, Item_int_func *item) :Item_func(thd, item) { collation.set_numeric(); } double val_real(); String *val_str(String*str); bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { return get_date_from_int(ltime, fuzzydate); } const Type_handler *type_handler() const= 0; bool fix_length_and_dec() { return FALSE; } }; class Item_long_func: public Item_int_func { public: Item_long_func(THD *thd): Item_int_func(thd) { } Item_long_func(THD *thd, Item *a): Item_int_func(thd, a) {} Item_long_func(THD *thd, Item *a, Item *b): Item_int_func(thd, a, b) {} Item_long_func(THD *thd, Item *a, Item *b, Item *c): Item_int_func(thd, a, b, c) {} Item_long_func(THD *thd, List<Item> &list): Item_int_func(thd, list) { } Item_long_func(THD *thd, Item_long_func *item) :Item_int_func(thd, item) {} const Type_handler *type_handler() const { return &type_handler_long; } bool fix_length_and_dec() { max_length= 11; return FALSE; } }; class Item_longlong_func: public Item_int_func { public: Item_longlong_func(THD *thd): Item_int_func(thd) { } Item_longlong_func(THD *thd, Item *a): Item_int_func(thd, a) {} Item_longlong_func(THD *thd, Item *a, Item *b): Item_int_func(thd, a, b) {} Item_longlong_func(THD *thd, Item *a, Item *b, Item *c): Item_int_func(thd, a, b, c) {} Item_longlong_func(THD *thd, Item *a, Item *b, Item *c, Item *d): Item_int_func(thd, a, b, c, d) {} Item_longlong_func(THD *thd, List<Item> &list): Item_int_func(thd, list) { } Item_longlong_func(THD *thd, Item_longlong_func *item) :Item_int_func(thd, item) {} const Type_handler *type_handler() const { return &type_handler_longlong; } }; class Cursor_ref { protected: LEX_CSTRING m_cursor_name; uint m_cursor_offset; class sp_cursor *get_open_cursor_or_error(); Cursor_ref(const LEX_CSTRING *name, uint offset) :m_cursor_name(*name), m_cursor_offset(offset) { } void print_func(String *str, const char *func_name); }; class Item_func_cursor_rowcount: public Item_longlong_func, public Cursor_ref { public: Item_func_cursor_rowcount(THD *thd, const LEX_CSTRING *name, uint offset) :Item_longlong_func(thd), Cursor_ref(name, offset) { maybe_null= true; } const char *func_name() const { return "%ROWCOUNT"; } longlong val_int(); bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), arg, VCOL_SESSION_FUNC); } void print(String *str, enum_query_type query_type) { return Cursor_ref::print_func(str, func_name()); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_cursor_rowcount>(thd, this); } }; class Item_func_connection_id :public Item_long_func { longlong value; public: Item_func_connection_id(THD *thd): Item_long_func(thd) { unsigned_flag=1; } const char *func_name() const { return "connection_id"; } bool fix_length_and_dec(); bool fix_fields(THD *thd, Item **ref); longlong val_int() { DBUG_ASSERT(fixed == 1); return value; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_SESSION_FUNC); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_connection_id>(thd, this); } }; class Item_func_signed :public Item_int_func { public: Item_func_signed(THD *thd, Item *a): Item_int_func(thd, a) { unsigned_flag= 0; } const char *func_name() const { return "cast_as_signed"; } const Type_handler *type_handler() const { return type_handler_long_or_longlong(); } longlong val_int() { longlong value= args[0]->val_int_signed_typecast(); null_value= args[0]->null_value; return value; } void fix_length_and_dec_double() { fix_char_length(MAX_BIGINT_WIDTH); } void fix_length_and_dec_generic() { uint32 char_length= MY_MIN(args[0]->max_char_length(), MY_INT64_NUM_DECIMAL_DIGITS); /* args[0]->max_char_length() can return 0. Reserve max_length to fit at least one character for one digit, plus one character for the sign (if signed). */ set_if_bigger(char_length, 1U + (unsigned_flag ? 0 : 1)); fix_char_length(char_length); } void fix_length_and_dec_string() { /* For strings, use decimal_int_part() instead of max_char_length(). This is important for Item_hex_hybrid: SELECT CAST(0x1FFFFFFFF AS SIGNED); Length is 5, decimal_int_part() is 13. */ uint32 char_length= MY_MIN(args[0]->decimal_int_part(), MY_INT64_NUM_DECIMAL_DIGITS); set_if_bigger(char_length, 1U + (unsigned_flag ? 0 : 1)); fix_char_length(char_length); } bool fix_length_and_dec() { return args[0]->type_handler()->Item_func_signed_fix_length_and_dec(this); } virtual void print(String *str, enum_query_type query_type); uint decimal_precision() const { return args[0]->decimal_precision(); } bool need_parentheses_in_default() { return true; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_signed>(thd, this); } }; class Item_func_unsigned :public Item_func_signed { public: Item_func_unsigned(THD *thd, Item *a): Item_func_signed(thd, a) { unsigned_flag= 1; } const char *func_name() const { return "cast_as_unsigned"; } const Type_handler *type_handler() const { if (max_char_length() <= MY_INT32_NUM_DECIMAL_DIGITS - 1) return &type_handler_long; return &type_handler_longlong; } longlong val_int() { longlong value= args[0]->val_int_unsigned_typecast(); null_value= args[0]->null_value; return value; } bool fix_length_and_dec() { return args[0]->type_handler()->Item_func_unsigned_fix_length_and_dec(this); } uint decimal_precision() const { return max_length; } virtual void print(String *str, enum_query_type query_type); Item *get_copy(THD *thd) { return get_item_copy<Item_func_unsigned>(thd, this); } }; class Item_decimal_typecast :public Item_func { my_decimal decimal_value; public: Item_decimal_typecast(THD *thd, Item *a, uint len, uint dec) :Item_func(thd, a) { decimals= (uint8) dec; collation.set_numeric(); fix_char_length(my_decimal_precision_to_length_no_truncation(len, dec, unsigned_flag)); } String *val_str(String *str); double val_real(); longlong val_int(); my_decimal *val_decimal(my_decimal*); bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { return get_date_from_decimal(ltime, fuzzydate); } const Type_handler *type_handler() const { return &type_handler_newdecimal; } void fix_length_and_dec_generic() {} bool fix_length_and_dec() { return args[0]->type_handler()->Item_decimal_typecast_fix_length_and_dec(this); } const char *func_name() const { return "decimal_typecast"; } virtual void print(String *str, enum_query_type query_type); bool need_parentheses_in_default() { return true; } Item *get_copy(THD *thd) { return get_item_copy<Item_decimal_typecast>(thd, this); } }; class Item_real_typecast: public Item_real_func { protected: double val_real_with_truncate(double max_value); public: Item_real_typecast(THD *thd, Item *a, uint len, uint dec) :Item_real_func(thd, a) { decimals= (uint8) dec; max_length= (uint32) len; } bool need_parentheses_in_default() { return true; } void print(String *str, enum_query_type query_type); void fix_length_and_dec_generic() { maybe_null= 1; } }; class Item_float_typecast :public Item_real_typecast { public: Item_float_typecast(THD *thd, Item *a) :Item_real_typecast(thd, a, MAX_FLOAT_STR_LENGTH, NOT_FIXED_DEC) { } const Type_handler *type_handler() const { return &type_handler_float; } bool fix_length_and_dec() { return args[0]->type_handler()->Item_float_typecast_fix_length_and_dec(this); } const char *func_name() const { return "float_typecast"; } double val_real() { return (double) (float) val_real_with_truncate(FLT_MAX); } String *val_str(String*str) { Float nr(Item_float_typecast::val_real()); if (null_value) return 0; nr.to_string(str, decimals); return str; } Item *get_copy(THD *thd) { return get_item_copy<Item_float_typecast>(thd, this); } }; class Item_double_typecast :public Item_real_typecast { public: Item_double_typecast(THD *thd, Item *a, uint len, uint dec): Item_real_typecast(thd, a, len, dec) { } bool fix_length_and_dec() { return args[0]->type_handler()->Item_double_typecast_fix_length_and_dec(this); } const char *func_name() const { return "double_typecast"; } double val_real() { return val_real_with_truncate(DBL_MAX); } Item *get_copy(THD *thd) { return get_item_copy<Item_double_typecast>(thd, this); } }; class Item_func_additive_op :public Item_num_op { public: Item_func_additive_op(THD *thd, Item *a, Item *b): Item_num_op(thd, a, b) {} void result_precision(); bool check_partition_func_processor(void *int_arg) {return FALSE;} bool check_vcol_func_processor(void *arg) { return FALSE;} }; class Item_func_plus :public Item_func_additive_op { public: Item_func_plus(THD *thd, Item *a, Item *b): Item_func_additive_op(thd, a, b) {} const char *func_name() const { return "+"; } enum precedence precedence() const { return ADD_PRECEDENCE; } bool fix_length_and_dec(); longlong int_op(); double real_op(); my_decimal *decimal_op(my_decimal *); Item *get_copy(THD *thd) { return get_item_copy<Item_func_plus>(thd, this); } }; class Item_func_minus :public Item_func_additive_op { bool m_depends_on_sql_mode_no_unsigned_subtraction; public: Item_func_minus(THD *thd, Item *a, Item *b): Item_func_additive_op(thd, a, b), m_depends_on_sql_mode_no_unsigned_subtraction(false) { } const char *func_name() const { return "-"; } enum precedence precedence() const { return ADD_PRECEDENCE; } Sql_mode_dependency value_depends_on_sql_mode() const; longlong int_op(); double real_op(); my_decimal *decimal_op(my_decimal *); bool fix_length_and_dec(); void fix_unsigned_flag(); void fix_length_and_dec_double() { Item_func_additive_op::fix_length_and_dec_double(); fix_unsigned_flag(); } void fix_length_and_dec_decimal() { Item_func_additive_op::fix_length_and_dec_decimal(); fix_unsigned_flag(); } void fix_length_and_dec_int() { Item_func_additive_op::fix_length_and_dec_int(); fix_unsigned_flag(); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_minus>(thd, this); } }; class Item_func_mul :public Item_num_op { public: Item_func_mul(THD *thd, Item *a, Item *b): Item_num_op(thd, a, b) {} const char *func_name() const { return "*"; } enum precedence precedence() const { return MUL_PRECEDENCE; } longlong int_op(); double real_op(); my_decimal *decimal_op(my_decimal *); void result_precision(); bool fix_length_and_dec(); bool check_partition_func_processor(void *int_arg) {return FALSE;} bool check_vcol_func_processor(void *arg) { return FALSE;} Item *get_copy(THD *thd) { return get_item_copy<Item_func_mul>(thd, this); } }; class Item_func_div :public Item_num_op { public: uint prec_increment; Item_func_div(THD *thd, Item *a, Item *b): Item_num_op(thd, a, b) {} longlong int_op() { DBUG_ASSERT(0); return 0; } double real_op(); my_decimal *decimal_op(my_decimal *); const char *func_name() const { return "/"; } enum precedence precedence() const { return MUL_PRECEDENCE; } bool fix_length_and_dec(); void fix_length_and_dec_double(); void fix_length_and_dec_int(); void result_precision(); Item *get_copy(THD *thd) { return get_item_copy<Item_func_div>(thd, this); } }; class Item_func_int_div :public Item_int_func { public: Item_func_int_div(THD *thd, Item *a, Item *b): Item_int_func(thd, a, b) {} longlong val_int(); const char *func_name() const { return "DIV"; } enum precedence precedence() const { return MUL_PRECEDENCE; } const Type_handler *type_handler() const { return type_handler_long_or_longlong(); } bool fix_length_and_dec(); void print(String *str, enum_query_type query_type) { print_op(str, query_type); } bool check_partition_func_processor(void *int_arg) {return FALSE;} bool check_vcol_func_processor(void *arg) { return FALSE;} bool need_parentheses_in_default() { return true; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_int_div>(thd, this); } }; class Item_func_mod :public Item_num_op { public: Item_func_mod(THD *thd, Item *a, Item *b): Item_num_op(thd, a, b) {} longlong int_op(); double real_op(); my_decimal *decimal_op(my_decimal *); const char *func_name() const { return "MOD"; } enum precedence precedence() const { return MUL_PRECEDENCE; } void result_precision(); bool fix_length_and_dec(); void fix_length_and_dec_double() { Item_num_op::fix_length_and_dec_double(); unsigned_flag= args[0]->unsigned_flag; } void fix_length_and_dec_decimal() { result_precision(); fix_decimals(); } void fix_length_and_dec_int() { result_precision(); DBUG_ASSERT(decimals == 0); set_handler(type_handler_long_or_longlong()); } bool check_partition_func_processor(void *int_arg) {return FALSE;} bool check_vcol_func_processor(void *arg) { return FALSE;} Item *get_copy(THD *thd) { return get_item_copy<Item_func_mod>(thd, this); } }; class Item_func_neg :public Item_func_num1 { public: Item_func_neg(THD *thd, Item *a): Item_func_num1(thd, a) {} double real_op(); longlong int_op(); my_decimal *decimal_op(my_decimal *); const char *func_name() const { return "-"; } enum Functype functype() const { return NEG_FUNC; } enum precedence precedence() const { return NEG_PRECEDENCE; } void print(String *str, enum_query_type query_type) { str->append(func_name()); args[0]->print_parenthesised(str, query_type, precedence()); } void fix_length_and_dec_int(); void fix_length_and_dec_double(); void fix_length_and_dec_decimal(); bool fix_length_and_dec(); uint decimal_precision() const { return args[0]->decimal_precision(); } bool need_parentheses_in_default() { return true; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_neg>(thd, this); } }; class Item_func_abs :public Item_func_num1 { public: Item_func_abs(THD *thd, Item *a): Item_func_num1(thd, a) {} double real_op(); longlong int_op(); my_decimal *decimal_op(my_decimal *); const char *func_name() const { return "abs"; } void fix_length_and_dec_int(); void fix_length_and_dec_double(); void fix_length_and_dec_decimal(); bool fix_length_and_dec(); Item *get_copy(THD *thd) { return get_item_copy<Item_func_abs>(thd, this); } }; // A class to handle logarithmic and trigonometric functions class Item_dec_func :public Item_real_func { bool check_arguments() const { return check_argument_types_can_return_real(0, arg_count); } public: Item_dec_func(THD *thd, Item *a): Item_real_func(thd, a) {} Item_dec_func(THD *thd, Item *a, Item *b): Item_real_func(thd, a, b) {} bool fix_length_and_dec() { decimals=NOT_FIXED_DEC; max_length=float_length(decimals); maybe_null=1; return FALSE; } }; class Item_func_exp :public Item_dec_func { public: Item_func_exp(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "exp"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_exp>(thd, this); } }; class Item_func_ln :public Item_dec_func { public: Item_func_ln(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "ln"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_ln>(thd, this); } }; class Item_func_log :public Item_dec_func { public: Item_func_log(THD *thd, Item *a): Item_dec_func(thd, a) {} Item_func_log(THD *thd, Item *a, Item *b): Item_dec_func(thd, a, b) {} double val_real(); const char *func_name() const { return "log"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_log>(thd, this); } }; class Item_func_log2 :public Item_dec_func { public: Item_func_log2(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "log2"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_log2>(thd, this); } }; class Item_func_log10 :public Item_dec_func { public: Item_func_log10(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "log10"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_log10>(thd, this); } }; class Item_func_sqrt :public Item_dec_func { public: Item_func_sqrt(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "sqrt"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_sqrt>(thd, this); } }; class Item_func_pow :public Item_dec_func { public: Item_func_pow(THD *thd, Item *a, Item *b): Item_dec_func(thd, a, b) {} double val_real(); const char *func_name() const { return "pow"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_pow>(thd, this); } }; class Item_func_acos :public Item_dec_func { public: Item_func_acos(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "acos"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_acos>(thd, this); } }; class Item_func_asin :public Item_dec_func { public: Item_func_asin(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "asin"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_asin>(thd, this); } }; class Item_func_atan :public Item_dec_func { public: Item_func_atan(THD *thd, Item *a): Item_dec_func(thd, a) {} Item_func_atan(THD *thd, Item *a, Item *b): Item_dec_func(thd, a, b) {} double val_real(); const char *func_name() const { return "atan"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_atan>(thd, this); } }; class Item_func_cos :public Item_dec_func { public: Item_func_cos(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "cos"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_cos>(thd, this); } }; class Item_func_sin :public Item_dec_func { public: Item_func_sin(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "sin"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_sin>(thd, this); } }; class Item_func_tan :public Item_dec_func { public: Item_func_tan(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "tan"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_tan>(thd, this); } }; class Item_func_cot :public Item_dec_func { public: Item_func_cot(THD *thd, Item *a): Item_dec_func(thd, a) {} double val_real(); const char *func_name() const { return "cot"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_cot>(thd, this); } }; class Item_func_int_val :public Item_func_num1 { public: Item_func_int_val(THD *thd, Item *a): Item_func_num1(thd, a) {} void fix_length_and_dec_double(); void fix_length_and_dec_int_or_decimal(); bool fix_length_and_dec(); }; class Item_func_ceiling :public Item_func_int_val { public: Item_func_ceiling(THD *thd, Item *a): Item_func_int_val(thd, a) {} const char *func_name() const { return "ceiling"; } longlong int_op(); double real_op(); my_decimal *decimal_op(my_decimal *); Item *get_copy(THD *thd) { return get_item_copy<Item_func_ceiling>(thd, this); } }; class Item_func_floor :public Item_func_int_val { public: Item_func_floor(THD *thd, Item *a): Item_func_int_val(thd, a) {} const char *func_name() const { return "floor"; } longlong int_op(); double real_op(); my_decimal *decimal_op(my_decimal *); Item *get_copy(THD *thd) { return get_item_copy<Item_func_floor>(thd, this); } }; /* This handles round and truncate */ class Item_func_round :public Item_func_numhybrid { bool truncate; void fix_length_and_dec_decimal(uint decimals_to_set); void fix_length_and_dec_double(uint decimals_to_set); public: Item_func_round(THD *thd, Item *a, Item *b, bool trunc_arg) :Item_func_numhybrid(thd, a, b), truncate(trunc_arg) {} const char *func_name() const { return truncate ? "truncate" : "round"; } double real_op(); longlong int_op(); my_decimal *decimal_op(my_decimal *); void fix_arg_decimal(); void fix_arg_int(); void fix_arg_double(); bool fix_length_and_dec() { return args[0]->type_handler()->Item_func_round_fix_length_and_dec(this); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_round>(thd, this); } }; class Item_func_rand :public Item_real_func { struct my_rnd_struct *rand; bool first_eval; // TRUE if val_real() is called 1st time bool check_arguments() const { return check_argument_types_can_return_int(0, arg_count); } public: Item_func_rand(THD *thd, Item *a): Item_real_func(thd, a), rand(0), first_eval(TRUE) {} Item_func_rand(THD *thd): Item_real_func(thd) {} double val_real(); const char *func_name() const { return "rand"; } bool const_item() const { return 0; } void update_used_tables(); bool fix_fields(THD *thd, Item **ref); void cleanup() { first_eval= TRUE; Item_real_func::cleanup(); } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_SESSION_FUNC); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_rand>(thd, this); } private: void seed_random (Item * val); }; class Item_func_sign :public Item_long_func { bool check_arguments() const { return args[0]->check_type_can_return_real(func_name()); } public: Item_func_sign(THD *thd, Item *a): Item_long_func(thd, a) {} const char *func_name() const { return "sign"; } uint decimal_precision() const { return 1; } bool fix_length_and_dec() { fix_char_length(2); return FALSE; } longlong val_int(); Item *get_copy(THD *thd) { return get_item_copy<Item_func_sign>(thd, this); } }; class Item_func_units :public Item_real_func { char *name; double mul,add; bool check_arguments() const { return check_argument_types_can_return_real(0, arg_count); } public: Item_func_units(THD *thd, char *name_arg, Item *a, double mul_arg, double add_arg): Item_real_func(thd, a), name(name_arg), mul(mul_arg), add(add_arg) {} double val_real(); const char *func_name() const { return name; } bool fix_length_and_dec() { decimals= NOT_FIXED_DEC; max_length= float_length(decimals); return FALSE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_units>(thd, this); } }; /** Item_func_min_max does not derive from Item_func_hybrid_field_type because the way how its methods val_xxx() and get_date() work depend not only by its arguments, but also on the context in which LEAST() and GREATEST() appear. For example, using Item_func_min_max in a CAST like this: CAST(LEAST('11','2') AS SIGNED) forces Item_func_min_max to compare the arguments as numbers rather than strings. Perhaps this should be changed eventually (see MDEV-5893). */ class Item_func_min_max :public Item_hybrid_func { String tmp_value; int cmp_sign; protected: bool fix_attributes(Item **item, uint nitems); public: Item_func_min_max(THD *thd, List<Item> &list, int cmp_sign_arg): Item_hybrid_func(thd, list), cmp_sign(cmp_sign_arg) {} String *val_str_native(String *str); double val_real_native(); longlong val_int_native(); my_decimal *val_decimal_native(my_decimal *); bool get_date_native(MYSQL_TIME *res, ulonglong fuzzydate); bool get_time_native(MYSQL_TIME *res); double val_real() { DBUG_ASSERT(fixed); return Item_func_min_max::type_handler()-> Item_func_min_max_val_real(this); } longlong val_int() { DBUG_ASSERT(fixed); return Item_func_min_max::type_handler()-> Item_func_min_max_val_int(this); } String *val_str(String *str) { DBUG_ASSERT(fixed); return Item_func_min_max::type_handler()-> Item_func_min_max_val_str(this, str); } my_decimal *val_decimal(my_decimal *dec) { DBUG_ASSERT(fixed); return Item_func_min_max::type_handler()-> Item_func_min_max_val_decimal(this, dec); } bool get_date(MYSQL_TIME *res, ulonglong fuzzy_date) { DBUG_ASSERT(fixed); return Item_func_min_max::type_handler()-> Item_func_min_max_get_date(this, res, fuzzy_date); } void aggregate_attributes_real(Item **items, uint nitems) { /* Aggregating attributes for the double data type for LEAST/GREATEST is almost the same with aggregating for CASE-alike hybrid functions, (CASE..THEN, COALESCE, IF, etc). There is one notable difference though, when a numeric argument is mixed with a string argument: - CASE-alike functions return a string data type in such cases COALESCE(10,'x') -> VARCHAR(2) = '10' - LEAST/GREATEST returns double: GREATEST(10,'10e4') -> DOUBLE = 100000 As the string argument can represent a number in the scientific notation, like in the example above, max_length of the result can be longer than max_length of the arguments. To handle this properly, max_length is additionally assigned to the result of float_length(decimals). */ Item_func::aggregate_attributes_real(items, nitems); max_length= float_length(decimals); } bool fix_length_and_dec() { if (aggregate_for_min_max(func_name(), args, arg_count)) return true; fix_attributes(args, arg_count); return false; } }; class Item_func_min :public Item_func_min_max { public: Item_func_min(THD *thd, List<Item> &list): Item_func_min_max(thd, list, 1) {} const char *func_name() const { return "least"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_min>(thd, this); } }; class Item_func_max :public Item_func_min_max { public: Item_func_max(THD *thd, List<Item> &list): Item_func_min_max(thd, list, -1) {} const char *func_name() const { return "greatest"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_max>(thd, this); } }; /* Objects of this class are used for ROLLUP queries to wrap up each constant item referred to in GROUP BY list. */ class Item_func_rollup_const :public Item_func { public: Item_func_rollup_const(THD *thd, Item *a): Item_func(thd, a) { name= a->name; } double val_real() { return val_real_from_item(args[0]); } longlong val_int() { return val_int_from_item(args[0]); } String *val_str(String *str) { return val_str_from_item(args[0], str); } my_decimal *val_decimal(my_decimal *dec) { return val_decimal_from_item(args[0], dec); } bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { return get_date_from_item(args[0], ltime, fuzzydate); } const char *func_name() const { return "rollup_const"; } bool const_item() const { return 0; } const Type_handler *type_handler() const { return args[0]->type_handler(); } bool fix_length_and_dec() { collation= args[0]->collation; max_length= args[0]->max_length; decimals=args[0]->decimals; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_rollup_const>(thd, this); } }; class Item_long_func_length: public Item_long_func { bool check_arguments() const { return args[0]->check_type_can_return_str(func_name()); } public: Item_long_func_length(THD *thd, Item *a): Item_long_func(thd, a) {} bool fix_length_and_dec() { max_length=10; return FALSE; } }; class Item_func_octet_length :public Item_long_func_length { String value; public: Item_func_octet_length(THD *thd, Item *a): Item_long_func_length(thd, a) {} longlong val_int(); const char *func_name() const { return "octet_length"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_octet_length>(thd, this); } }; class Item_func_bit_length :public Item_longlong_func { String value; public: Item_func_bit_length(THD *thd, Item *a): Item_longlong_func(thd, a) {} bool fix_length_and_dec() { max_length= 11; // 0x100000000*8 = 34,359,738,368 return FALSE; } longlong val_int(); const char *func_name() const { return "bit_length"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_bit_length>(thd, this); } }; class Item_func_char_length :public Item_long_func_length { String value; public: Item_func_char_length(THD *thd, Item *a): Item_long_func_length(thd, a) {} longlong val_int(); const char *func_name() const { return "char_length"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_char_length>(thd, this); } }; class Item_func_coercibility :public Item_long_func { bool check_arguments() const { return args[0]->check_type_can_return_str(func_name()); } public: Item_func_coercibility(THD *thd, Item *a): Item_long_func(thd, a) {} longlong val_int(); const char *func_name() const { return "coercibility"; } bool fix_length_and_dec() { max_length=10; maybe_null= 0; return FALSE; } bool eval_not_null_tables(void *) { not_null_tables_cache= 0; return false; } Item* propagate_equal_fields(THD *thd, const Context &ctx, COND_EQUAL *cond) { return this; } bool const_item() const { return true; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_coercibility>(thd, this); } }; /* In the corner case LOCATE could return (4,294,967,296 + 1), which would not fit into Item_long_func range. But string lengths are limited with max_allowed_packet, which cannot be bigger than 1024*1024*1024. */ class Item_func_locate :public Item_long_func { bool check_arguments() const { return check_argument_types_can_return_str(0, 2) || (arg_count > 2 && args[2]->check_type_can_return_int(func_name())); } String value1,value2; DTCollation cmp_collation; public: Item_func_locate(THD *thd, Item *a, Item *b) :Item_long_func(thd, a, b) {} Item_func_locate(THD *thd, Item *a, Item *b, Item *c) :Item_long_func(thd, a, b, c) {} const char *func_name() const { return "locate"; } longlong val_int(); bool fix_length_and_dec() { max_length= MY_INT32_NUM_DECIMAL_DIGITS; return agg_arg_charsets_for_comparison(cmp_collation, args, 2); } virtual void print(String *str, enum_query_type query_type); Item *get_copy(THD *thd) { return get_item_copy<Item_func_locate>(thd, this); } }; class Item_func_field :public Item_long_func { String value,tmp; Item_result cmp_type; DTCollation cmp_collation; public: Item_func_field(THD *thd, List<Item> &list): Item_long_func(thd, list) {} longlong val_int(); const char *func_name() const { return "field"; } bool fix_length_and_dec(); Item *get_copy(THD *thd) { return get_item_copy<Item_func_field>(thd, this); } }; class Item_func_ascii :public Item_long_func { bool check_arguments() const { return check_argument_types_can_return_str(0, arg_count); } String value; public: Item_func_ascii(THD *thd, Item *a): Item_long_func(thd, a) {} longlong val_int(); const char *func_name() const { return "ascii"; } bool fix_length_and_dec() { max_length=3; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_ascii>(thd, this); } }; class Item_func_ord :public Item_long_func { bool check_arguments() const { return args[0]->check_type_can_return_str(func_name()); } String value; public: Item_func_ord(THD *thd, Item *a): Item_long_func(thd, a) {} bool fix_length_and_dec() { fix_char_length(7); return FALSE; } longlong val_int(); const char *func_name() const { return "ord"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_ord>(thd, this); } }; class Item_func_find_in_set :public Item_long_func { bool check_arguments() const { return check_argument_types_can_return_str(0, 2); } String value,value2; uint enum_value; ulonglong enum_bit; DTCollation cmp_collation; public: Item_func_find_in_set(THD *thd, Item *a, Item *b): Item_long_func(thd, a, b), enum_value(0) {} longlong val_int(); const char *func_name() const { return "find_in_set"; } bool fix_length_and_dec(); Item *get_copy(THD *thd) { return get_item_copy<Item_func_find_in_set>(thd, this); } }; /* Base class for all bit functions: '~', '|', '^', '&', '>>', '<<' */ class Item_func_bit: public Item_longlong_func { bool check_arguments() const { return check_argument_types_can_return_int(0, arg_count); } public: Item_func_bit(THD *thd, Item *a, Item *b): Item_longlong_func(thd, a, b) {} Item_func_bit(THD *thd, Item *a): Item_longlong_func(thd, a) {} bool fix_length_and_dec() { unsigned_flag= 1; return FALSE; } virtual inline void print(String *str, enum_query_type query_type) { print_op(str, query_type); } bool need_parentheses_in_default() { return true; } }; class Item_func_bit_or :public Item_func_bit { public: Item_func_bit_or(THD *thd, Item *a, Item *b): Item_func_bit(thd, a, b) {} longlong val_int(); const char *func_name() const { return "|"; } enum precedence precedence() const { return BITOR_PRECEDENCE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_bit_or>(thd, this); } }; class Item_func_bit_and :public Item_func_bit { public: Item_func_bit_and(THD *thd, Item *a, Item *b): Item_func_bit(thd, a, b) {} longlong val_int(); const char *func_name() const { return "&"; } enum precedence precedence() const { return BITAND_PRECEDENCE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_bit_and>(thd, this); } }; class Item_func_bit_count :public Item_long_func { bool check_arguments() const { return args[0]->check_type_can_return_int(func_name()); } public: Item_func_bit_count(THD *thd, Item *a): Item_long_func(thd, a) {} longlong val_int(); const char *func_name() const { return "bit_count"; } bool fix_length_and_dec() { max_length=2; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_bit_count>(thd, this); } }; class Item_func_shift_left :public Item_func_bit { public: Item_func_shift_left(THD *thd, Item *a, Item *b): Item_func_bit(thd, a, b) {} longlong val_int(); const char *func_name() const { return "<<"; } enum precedence precedence() const { return SHIFT_PRECEDENCE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_shift_left>(thd, this); } }; class Item_func_shift_right :public Item_func_bit { public: Item_func_shift_right(THD *thd, Item *a, Item *b): Item_func_bit(thd, a, b) {} longlong val_int(); const char *func_name() const { return ">>"; } enum precedence precedence() const { return SHIFT_PRECEDENCE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_shift_right>(thd, this); } }; class Item_func_bit_neg :public Item_func_bit { public: Item_func_bit_neg(THD *thd, Item *a): Item_func_bit(thd, a) {} longlong val_int(); const char *func_name() const { return "~"; } enum precedence precedence() const { return NEG_PRECEDENCE; } void print(String *str, enum_query_type query_type) { str->append(func_name()); args[0]->print_parenthesised(str, query_type, precedence()); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_bit_neg>(thd, this); } }; class Item_func_last_insert_id :public Item_longlong_func { bool check_arguments() const { return check_argument_types_can_return_int(0, arg_count); } public: Item_func_last_insert_id(THD *thd): Item_longlong_func(thd) {} Item_func_last_insert_id(THD *thd, Item *a): Item_longlong_func(thd, a) {} longlong val_int(); const char *func_name() const { return "last_insert_id"; } bool fix_length_and_dec() { unsigned_flag= true; if (arg_count) max_length= args[0]->max_length; return FALSE; } bool fix_fields(THD *thd, Item **ref); bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_last_insert_id>(thd, this); } }; class Item_func_benchmark :public Item_long_func { bool check_arguments() const { return args[0]->check_type_can_return_int(func_name()) || args[1]->check_type_scalar(func_name()); } public: Item_func_benchmark(THD *thd, Item *count_expr, Item *expr): Item_long_func(thd, count_expr, expr) {} longlong val_int(); const char *func_name() const { return "benchmark"; } bool fix_length_and_dec() { max_length=1; maybe_null=0; return FALSE; } virtual void print(String *str, enum_query_type query_type); bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_benchmark>(thd, this); } }; void item_func_sleep_init(void); void item_func_sleep_free(void); class Item_func_sleep :public Item_long_func { bool check_arguments() const { return args[0]->check_type_can_return_real(func_name()); } public: Item_func_sleep(THD *thd, Item *a): Item_long_func(thd, a) {} bool fix_length_and_dec() { fix_char_length(1); return FALSE; } bool const_item() const { return 0; } const char *func_name() const { return "sleep"; } table_map used_tables() const { return used_tables_cache | RAND_TABLE_BIT; } bool is_expensive() { return 1; } longlong val_int(); bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_sleep>(thd, this); } }; #ifdef HAVE_DLOPEN class Item_udf_func :public Item_func { /** Mark "this" as non-deterministic if it uses no tables and is not a constant at the same time. */ void set_non_deterministic_if_needed() { if (!const_item_cache && !used_tables_cache) used_tables_cache= RAND_TABLE_BIT; } protected: udf_handler udf; bool is_expensive_processor(void *arg) { return TRUE; } public: Item_udf_func(THD *thd, udf_func *udf_arg): Item_func(thd), udf(udf_arg) {} Item_udf_func(THD *thd, udf_func *udf_arg, List<Item> &list): Item_func(thd, list), udf(udf_arg) {} const char *func_name() const { return udf.name(); } enum Functype functype() const { return UDF_FUNC; } bool fix_fields(THD *thd, Item **ref) { DBUG_ASSERT(fixed == 0); bool res= udf.fix_fields(thd, this, arg_count, args); set_non_deterministic_if_needed(); fixed= 1; return res; } void fix_num_length_and_dec(); void update_used_tables() { /* TODO: Make a member in UDF_INIT and return if a UDF is deterministic or not. Currently UDF_INIT has a member (const_item) that is an in/out parameter to the init() call. The code in udf_handler::fix_fields also duplicates the arguments handling code in Item_func::fix_fields(). The lack of information if a UDF is deterministic makes writing a correct update_used_tables() for UDFs impossible. One solution to this would be : - Add a is_deterministic member of UDF_INIT - (optionally) deprecate the const_item member of UDF_INIT - Take away the duplicate code from udf_handler::fix_fields() and make Item_udf_func call Item_func::fix_fields() to process its arguments as for any other function. - Store the deterministic flag returned by <udf>_init into the udf_handler. - Don't implement Item_udf_func::fix_fields, implement Item_udf_func::fix_length_and_dec() instead (similar to non-UDF functions). - Override Item_func::update_used_tables to call Item_func::update_used_tables() and add a RAND_TABLE_BIT to the result of Item_func::update_used_tables() if the UDF is non-deterministic. - (optionally) rename RAND_TABLE_BIT to NONDETERMINISTIC_BIT to better describe its usage. The above would require a change of the UDF API. Until that change is done here's how the current code works: We call Item_func::update_used_tables() only when we know that the function depends on real non-const tables and is deterministic. This can be done only because we know that the optimizer will call update_used_tables() only when there's possibly a new const table. So update_used_tables() can only make a Item_func more constant than it is currently. That's why we don't need to do anything if a function is guaranteed to return non-constant (it's non-deterministic) or is already a const. */ if ((used_tables_cache & ~PSEUDO_TABLE_BITS) && !(used_tables_cache & RAND_TABLE_BIT)) { Item_func::update_used_tables(); set_non_deterministic_if_needed(); } } void cleanup(); bool eval_not_null_tables(void *opt_arg) { not_null_tables_cache= 0; return 0; } bool is_expensive() { return 1; } virtual void print(String *str, enum_query_type query_type); bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_NON_DETERMINISTIC); } bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { return type_handler()->Item_get_date(this, ltime, fuzzydate); } }; class Item_func_udf_float :public Item_udf_func { public: Item_func_udf_float(THD *thd, udf_func *udf_arg): Item_udf_func(thd, udf_arg) {} Item_func_udf_float(THD *thd, udf_func *udf_arg, List<Item> &list): Item_udf_func(thd, udf_arg, list) {} longlong val_int() { DBUG_ASSERT(fixed == 1); return Converter_double_to_longlong(Item_func_udf_float::val_real(), unsigned_flag).result(); } my_decimal *val_decimal(my_decimal *dec_buf) { double res=val_real(); if (null_value) return NULL; double2my_decimal(E_DEC_FATAL_ERROR, res, dec_buf); return dec_buf; } double val_real(); String *val_str(String *str); const Type_handler *type_handler() const { return &type_handler_double; } bool fix_length_and_dec() { fix_num_length_and_dec(); return FALSE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_udf_float>(thd, this); } }; class Item_func_udf_int :public Item_udf_func { public: Item_func_udf_int(THD *thd, udf_func *udf_arg): Item_udf_func(thd, udf_arg) {} Item_func_udf_int(THD *thd, udf_func *udf_arg, List<Item> &list): Item_udf_func(thd, udf_arg, list) {} longlong val_int(); double val_real() { return (double) Item_func_udf_int::val_int(); } String *val_str(String *str); const Type_handler *type_handler() const { return &type_handler_longlong; } bool fix_length_and_dec() { decimals= 0; max_length= 21; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_udf_int>(thd, this); } }; class Item_func_udf_decimal :public Item_udf_func { public: Item_func_udf_decimal(THD *thd, udf_func *udf_arg): Item_udf_func(thd, udf_arg) {} Item_func_udf_decimal(THD *thd, udf_func *udf_arg, List<Item> &list): Item_udf_func(thd, udf_arg, list) {} longlong val_int(); double val_real(); my_decimal *val_decimal(my_decimal *); String *val_str(String *str); const Type_handler *type_handler() const { return &type_handler_newdecimal; } bool fix_length_and_dec() { fix_num_length_and_dec(); return FALSE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_udf_decimal>(thd, this); } }; class Item_func_udf_str :public Item_udf_func { public: Item_func_udf_str(THD *thd, udf_func *udf_arg): Item_udf_func(thd, udf_arg) {} Item_func_udf_str(THD *thd, udf_func *udf_arg, List<Item> &list): Item_udf_func(thd, udf_arg, list) {} String *val_str(String *); double val_real() { int err_not_used; char *end_not_used; String *res; res= val_str(&str_value); return res ? my_strntod(res->charset(),(char*) res->ptr(), res->length(), &end_not_used, &err_not_used) : 0.0; } longlong val_int() { int err_not_used; String *res; res=val_str(&str_value); return res ? my_strntoll(res->charset(),res->ptr(),res->length(),10, (char**) 0, &err_not_used) : (longlong) 0; } my_decimal *val_decimal(my_decimal *dec_buf) { String *res=val_str(&str_value); if (!res) return NULL; string2my_decimal(E_DEC_FATAL_ERROR, res, dec_buf); return dec_buf; } const Type_handler *type_handler() const { return string_type_handler(); } bool fix_length_and_dec(); Item *get_copy(THD *thd) { return get_item_copy<Item_func_udf_str>(thd, this); } }; #else /* Dummy functions to get sql_yacc.cc compiled */ class Item_func_udf_float :public Item_real_func { public: Item_func_udf_float(THD *thd, udf_func *udf_arg): Item_real_func(thd) {} Item_func_udf_float(THD *thd, udf_func *udf_arg, List<Item> &list): Item_real_func(thd, list) {} double val_real() { DBUG_ASSERT(fixed == 1); return 0.0; } }; class Item_func_udf_int :public Item_int_func { public: Item_func_udf_int(THD *thd, udf_func *udf_arg): Item_int_func(thd) {} Item_func_udf_int(THD *thd, udf_func *udf_arg, List<Item> &list): Item_int_func(thd, list) {} const Type_handler *type_handler() const { return &type_handler_longlong; } longlong val_int() { DBUG_ASSERT(fixed == 1); return 0; } }; class Item_func_udf_decimal :public Item_int_func { public: Item_func_udf_decimal(THD *thd, udf_func *udf_arg): Item_int_func(thd) {} Item_func_udf_decimal(THD *thd, udf_func *udf_arg, List<Item> &list): Item_int_func(thd, list) {} const Type_handler *type_handler() const { return &type_handler_longlong; } my_decimal *val_decimal(my_decimal *) { DBUG_ASSERT(fixed == 1); return 0; } }; class Item_func_udf_str :public Item_func { public: Item_func_udf_str(THD *thd, udf_func *udf_arg): Item_func(thd) {} Item_func_udf_str(THD *thd, udf_func *udf_arg, List<Item> &list): Item_func(thd, list) {} String *val_str(String *) { DBUG_ASSERT(fixed == 1); null_value=1; return 0; } double val_real() { DBUG_ASSERT(fixed == 1); null_value= 1; return 0.0; } longlong val_int() { DBUG_ASSERT(fixed == 1); null_value=1; return 0; } bool fix_length_and_dec() { maybe_null=1; max_length=0; return FALSE; } }; #endif /* HAVE_DLOPEN */ void mysql_ull_cleanup(THD *thd); void mysql_ull_set_explicit_lock_duration(THD *thd); class Item_func_get_lock :public Item_long_func { bool check_arguments() const { return args[0]->check_type_general_purpose_string(func_name()) || args[1]->check_type_can_return_real(func_name()); } String value; public: Item_func_get_lock(THD *thd, Item *a, Item *b) :Item_long_func(thd, a, b) {} longlong val_int(); const char *func_name() const { return "get_lock"; } bool fix_length_and_dec() { max_length=1; maybe_null=1; return FALSE; } table_map used_tables() const { return used_tables_cache | RAND_TABLE_BIT; } bool const_item() const { return 0; } bool is_expensive() { return 1; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_get_lock>(thd, this); } }; class Item_func_release_lock :public Item_long_func { bool check_arguments() const { return args[0]->check_type_general_purpose_string(func_name()); } String value; public: Item_func_release_lock(THD *thd, Item *a): Item_long_func(thd, a) {} longlong val_int(); const char *func_name() const { return "release_lock"; } bool fix_length_and_dec() { max_length= 1; maybe_null= 1; return FALSE; } table_map used_tables() const { return used_tables_cache | RAND_TABLE_BIT; } bool const_item() const { return 0; } bool is_expensive() { return 1; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_release_lock>(thd, this); } }; /* replication functions */ class Item_master_pos_wait :public Item_longlong_func { bool check_arguments() const { return args[0]->check_type_general_purpose_string(func_name()) || args[1]->check_type_can_return_int(func_name()) || (arg_count > 2 && args[2]->check_type_can_return_int(func_name())) || (arg_count > 3 && args[3]->check_type_general_purpose_string(func_name())); } String value; public: Item_master_pos_wait(THD *thd, Item *a, Item *b) :Item_longlong_func(thd, a, b) {} Item_master_pos_wait(THD *thd, Item *a, Item *b, Item *c): Item_longlong_func(thd, a, b, c) {} Item_master_pos_wait(THD *thd, Item *a, Item *b, Item *c, Item *d): Item_longlong_func(thd, a, b, c, d) {} longlong val_int(); const char *func_name() const { return "master_pos_wait"; } bool fix_length_and_dec() { max_length=21; maybe_null=1; return FALSE; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_master_pos_wait>(thd, this); } }; class Item_master_gtid_wait :public Item_long_func { bool check_arguments() const { return args[0]->check_type_general_purpose_string(func_name()) || (arg_count > 1 && args[1]->check_type_can_return_real(func_name())); } String value; public: Item_master_gtid_wait(THD *thd, Item *a) :Item_long_func(thd, a) {} Item_master_gtid_wait(THD *thd, Item *a, Item *b) :Item_long_func(thd, a, b) {} longlong val_int(); const char *func_name() const { return "master_gtid_wait"; } bool fix_length_and_dec() { max_length=2; return FALSE; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_master_gtid_wait>(thd, this); } }; /* Handling of user definable variables */ class user_var_entry; /** A class to set and get user variables */ class Item_func_user_var :public Item_hybrid_func { protected: user_var_entry *m_var_entry; public: LEX_CSTRING name; // keep it public Item_func_user_var(THD *thd, const LEX_CSTRING *a) :Item_hybrid_func(thd), m_var_entry(NULL), name(*a) { } Item_func_user_var(THD *thd, const LEX_CSTRING *a, Item *b) :Item_hybrid_func(thd, b), m_var_entry(NULL), name(*a) { } Item_func_user_var(THD *thd, Item_func_user_var *item) :Item_hybrid_func(thd, item), m_var_entry(item->m_var_entry), name(item->name) { } Field *create_tmp_field(bool group, TABLE *table) { return create_table_field_from_handler(table); } Field *create_field_for_create_select(TABLE *table) { return create_table_field_from_handler(table); } bool check_vcol_func_processor(void *arg); bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { return type_handler()->Item_get_date(this, ltime, fuzzydate); } }; class Item_func_set_user_var :public Item_func_user_var { /* The entry_thread_id variable is used: 1) to skip unnecessary updates of the entry field (see above); 2) to reset the entry field that was initialized in the other thread (for example, an item tree of a trigger that updates user variables may be shared between several connections, and the entry_thread_id field prevents updates of one connection user variables from a concurrent connection calling the same trigger that initially updated some user variable it the first connection context). */ my_thread_id entry_thread_id; String value; my_decimal decimal_buff; bool null_item; union { longlong vint; double vreal; String *vstr; my_decimal *vdec; } save_result; public: Item_func_set_user_var(THD *thd, const LEX_CSTRING *a, Item *b): Item_func_user_var(thd, a, b), entry_thread_id(0) {} Item_func_set_user_var(THD *thd, Item_func_set_user_var *item) :Item_func_user_var(thd, item), entry_thread_id(item->entry_thread_id), value(item->value), decimal_buff(item->decimal_buff), null_item(item->null_item), save_result(item->save_result) {} enum Functype functype() const { return SUSERVAR_FUNC; } double val_real(); longlong val_int(); String *val_str(String *str); my_decimal *val_decimal(my_decimal *); double val_result(); longlong val_int_result(); bool val_bool_result(); String *str_result(String *str); my_decimal *val_decimal_result(my_decimal *); bool is_null_result(); bool update_hash(void *ptr, size_t length, enum Item_result type, CHARSET_INFO *cs, bool unsigned_arg); bool send(Protocol *protocol, st_value *buffer); void make_send_field(THD *thd, Send_field *tmp_field); bool check(bool use_result_field); void save_item_result(Item *item); bool update(); bool fix_fields(THD *thd, Item **ref); bool fix_length_and_dec(); void print(String *str, enum_query_type query_type); enum precedence precedence() const { return ASSIGN_PRECEDENCE; } void print_as_stmt(String *str, enum_query_type query_type); const char *func_name() const { return "set_user_var"; } int save_in_field(Field *field, bool no_conversions, bool can_use_result_field); int save_in_field(Field *field, bool no_conversions) { return save_in_field(field, no_conversions, 1); } void save_org_in_field(Field *field, fast_field_copier data __attribute__ ((__unused__))) { (void)save_in_field(field, 1, 0); } bool register_field_in_read_map(void *arg); bool register_field_in_bitmap(void *arg); bool set_entry(THD *thd, bool create_if_not_exists); void cleanup(); Item *get_copy(THD *thd) { return get_item_copy<Item_func_set_user_var>(thd, this); } bool excl_dep_on_table(table_map tab_map) { return false; } }; class Item_func_get_user_var :public Item_func_user_var, private Settable_routine_parameter { public: Item_func_get_user_var(THD *thd, const LEX_CSTRING *a): Item_func_user_var(thd, a) {} enum Functype functype() const { return GUSERVAR_FUNC; } LEX_CSTRING get_name() { return name; } double val_real(); longlong val_int(); my_decimal *val_decimal(my_decimal*); String *val_str(String* str); bool fix_length_and_dec(); virtual void print(String *str, enum_query_type query_type); /* We must always return variables as strings to guard against selects of type select @t1:=1,@t1,@t:="hello",@t from foo where (@t1:= t2.b) */ const char *func_name() const { return "get_user_var"; } bool const_item() const; table_map used_tables() const { return const_item() ? 0 : RAND_TABLE_BIT; } bool eq(const Item *item, bool binary_cmp) const; Item *get_copy(THD *thd) { return get_item_copy<Item_func_get_user_var>(thd, this); } private: bool set_value(THD *thd, sp_rcontext *ctx, Item **it); public: Settable_routine_parameter *get_settable_routine_parameter() { return this; } }; /* This item represents user variable used as out parameter (e.g in LOAD DATA), and it is supposed to be used only for this purprose. So it is simplified a lot. Actually you should never obtain its value. The only two reasons for this thing being an Item is possibility to store it in List<Item> and desire to place this code somewhere near other functions working with user variables. */ class Item_user_var_as_out_param :public Item, public Load_data_outvar { LEX_CSTRING org_name; user_var_entry *entry; public: Item_user_var_as_out_param(THD *thd, const LEX_CSTRING *a) :Item(thd) { DBUG_ASSERT(a->length < UINT_MAX32); org_name= *a; set_name(thd, a->str, a->length, system_charset_info); } Load_data_outvar *get_load_data_outvar() { return this; } bool load_data_set_null(THD *thd, const Load_data_param *param) { set_null_value(param->charset()); return false; } bool load_data_set_no_data(THD *thd, const Load_data_param *param) { set_null_value(param->charset()); return false; } bool load_data_set_value(THD *thd, const char *pos, uint length, const Load_data_param *param) { set_value(pos, length, param->charset()); return false; } void load_data_print_for_log_event(THD *thd, String *to) const; bool load_data_add_outvar(THD *thd, Load_data_param *param) const { return param->add_outvar_user_var(thd); } uint load_data_fixed_length() const { return 0; } /* We should return something different from FIELD_ITEM here */ enum Type type() const { return STRING_ITEM;} double val_real(); longlong val_int(); String *val_str(String *str); bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate); my_decimal *val_decimal(my_decimal *decimal_buffer); /* fix_fields() binds variable name with its entry structure */ bool fix_fields(THD *thd, Item **ref); void set_null_value(CHARSET_INFO* cs); void set_value(const char *str, uint length, CHARSET_INFO* cs); const Type_handler *type_handler() const { return &type_handler_double; } Item *get_copy(THD *thd) { return get_item_copy<Item_user_var_as_out_param>(thd, this); } }; /* A system variable */ #define GET_SYS_VAR_CACHE_LONG 1 #define GET_SYS_VAR_CACHE_DOUBLE 2 #define GET_SYS_VAR_CACHE_STRING 4 class Item_func_get_system_var :public Item_func { sys_var *var; enum_var_type var_type, orig_var_type; LEX_CSTRING component; longlong cached_llval; double cached_dval; String cached_strval; bool cached_null_value; query_id_t used_query_id; uchar cache_present; public: Item_func_get_system_var(THD *thd, sys_var *var_arg, enum_var_type var_type_arg, LEX_CSTRING *component_arg, const char *name_arg, size_t name_len_arg); enum Functype functype() const { return GSYSVAR_FUNC; } void update_null_value(); bool fix_length_and_dec(); void print(String *str, enum_query_type query_type); bool const_item() const { return true; } table_map used_tables() const { return 0; } const Type_handler *type_handler() const; double val_real(); longlong val_int(); String* val_str(String*); my_decimal *val_decimal(my_decimal *dec_buf) { return val_decimal_from_real(dec_buf); } bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { return type_handler()->Item_get_date(this, ltime, fuzzydate); } /* TODO: fix to support views */ const char *func_name() const { return "get_system_var"; } /** Indicates whether this system variable is written to the binlog or not. Variables are written to the binlog as part of "status_vars" in Query_log_event, as an Intvar_log_event, or a Rand_log_event. @return true if the variable is written to the binlog, false otherwise. */ bool is_written_to_binlog(); bool eq(const Item *item, bool binary_cmp) const; void cleanup(); bool check_vcol_func_processor(void *arg); Item *get_copy(THD *thd) { return get_item_copy<Item_func_get_system_var>(thd, this); } }; /* for fulltext search */ class Item_func_match :public Item_real_func { public: uint key, flags; bool join_key; DTCollation cmp_collation; FT_INFO *ft_handler; TABLE *table; Item_func_match *master; // for master-slave optimization Item *concat_ws; // Item_func_concat_ws String value; // value of concat_ws String search_value; // key_item()'s value converted to cmp_collation Item_func_match(THD *thd, List<Item> &a, uint b): Item_real_func(thd, a), key(0), flags(b), join_key(0), ft_handler(0), table(0), master(0), concat_ws(0) { } void cleanup() { DBUG_ENTER("Item_func_match::cleanup"); Item_real_func::cleanup(); if (!master && ft_handler) ft_handler->please->close_search(ft_handler); ft_handler= 0; concat_ws= 0; table= 0; // required by Item_func_match::eq() DBUG_VOID_RETURN; } bool is_expensive_processor(void *arg) { return TRUE; } enum Functype functype() const { return FT_FUNC; } const char *func_name() const { return "match"; } bool eval_not_null_tables(void *opt_arg) { not_null_tables_cache= 0; return 0; } bool fix_fields(THD *thd, Item **ref); bool eq(const Item *, bool binary_cmp) const; /* The following should be safe, even if we compare doubles */ longlong val_int() { DBUG_ASSERT(fixed == 1); return val_real() != 0.0; } double val_real(); virtual void print(String *str, enum_query_type query_type); bool fix_index(); bool init_search(THD *thd, bool no_order); bool check_vcol_func_processor(void *arg) { return mark_unsupported_function("match ... against()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_match>(thd, this); } Item *build_clone(THD *thd) { return 0; } private: /** Check whether storage engine for given table, allows FTS Boolean search on non-indexed columns. @todo A flag should be added to the extended fulltext API so that it may be checked whether search on non-indexed columns are supported. Currently, it is not possible to check for such a flag since @c this->ft_handler is not yet set when this function is called. The current hack is to assume that search on non-indexed columns are supported for engines that does not support the extended fulltext API (e.g., MyISAM), while it is not supported for other engines (e.g., InnoDB) @param table_arg Table for which storage engine to check @retval true if BOOLEAN search on non-indexed columns is supported @retval false otherwise */ bool allows_search_on_non_indexed_columns(TABLE* table_arg) { // Only Boolean search may support non_indexed columns if (!(flags & FT_BOOL)) return false; DBUG_ASSERT(table_arg && table_arg->file); // Assume that if extended fulltext API is not supported, // non-indexed columns are allowed. This will be true for MyISAM. if ((table_arg->file->ha_table_flags() & HA_CAN_FULLTEXT_EXT) == 0) return true; return false; } }; class Item_func_bit_xor : public Item_func_bit { public: Item_func_bit_xor(THD *thd, Item *a, Item *b): Item_func_bit(thd, a, b) {} longlong val_int(); const char *func_name() const { return "^"; } enum precedence precedence() const { return BITXOR_PRECEDENCE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_bit_xor>(thd, this); } }; class Item_func_is_free_lock :public Item_long_func { bool check_arguments() const { return args[0]->check_type_general_purpose_string(func_name()); } String value; public: Item_func_is_free_lock(THD *thd, Item *a): Item_long_func(thd, a) {} longlong val_int(); const char *func_name() const { return "is_free_lock"; } bool fix_length_and_dec() { decimals=0; max_length=1; maybe_null=1; return FALSE; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_is_free_lock>(thd, this); } }; class Item_func_is_used_lock :public Item_long_func { bool check_arguments() const { return args[0]->check_type_general_purpose_string(func_name()); } String value; public: Item_func_is_used_lock(THD *thd, Item *a): Item_long_func(thd, a) {} longlong val_int(); const char *func_name() const { return "is_used_lock"; } bool fix_length_and_dec() { decimals=0; max_length=10; maybe_null=1; return FALSE; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_is_used_lock>(thd, this); } }; struct Lex_cast_type_st: public Lex_length_and_dec_st { private: const Type_handler *m_type_handler; public: void set(const Type_handler *handler, const char *length, const char *dec) { m_type_handler= handler; Lex_length_and_dec_st::set(length, dec); } void set(const Type_handler *handler, Lex_length_and_dec_st length_and_dec) { m_type_handler= handler; Lex_length_and_dec_st::operator=(length_and_dec); } void set(const Type_handler *handler, const char *length) { set(handler, length, 0); } void set(const Type_handler *handler) { set(handler, 0, 0); } const Type_handler *type_handler() const { return m_type_handler; } Item *create_typecast_item(THD *thd, Item *item, CHARSET_INFO *cs= NULL) { return m_type_handler-> create_typecast_item(thd, item, Type_cast_attributes(length(), dec(), cs)); } }; class Item_func_row_count :public Item_longlong_func { public: Item_func_row_count(THD *thd): Item_longlong_func(thd) {} longlong val_int(); const char *func_name() const { return "row_count"; } bool fix_length_and_dec() { decimals= 0; maybe_null=0; return FALSE; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_row_count>(thd, this); } }; /* * * Stored FUNCTIONs * */ class Item_func_sp :public Item_func, public Item_sp { private: const Sp_handler *m_handler; bool execute(); protected: bool is_expensive_processor(void *arg) { return is_expensive(); } bool check_arguments() const { // sp_prepare_func_item() checks that the number of columns is correct return false; } public: Item_func_sp(THD *thd, Name_resolution_context *context_arg, sp_name *name, const Sp_handler *sph); Item_func_sp(THD *thd, Name_resolution_context *context_arg, sp_name *name, const Sp_handler *sph, List<Item> &list); virtual ~Item_func_sp() {} void update_used_tables(); void cleanup(); const char *func_name() const; const Type_handler *type_handler() const; Field *create_field_for_create_select(TABLE *table) { return result_type() != STRING_RESULT ? sp_result_field : create_table_field_from_handler(table); } void make_send_field(THD *thd, Send_field *tmp_field); longlong val_int() { if (execute()) return (longlong) 0; return sp_result_field->val_int(); } double val_real() { if (execute()) return 0.0; return sp_result_field->val_real(); } my_decimal *val_decimal(my_decimal *dec_buf) { if (execute()) return NULL; return sp_result_field->val_decimal(dec_buf); } bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { if (execute()) return true; return sp_result_field->get_date(ltime, fuzzydate); } String *val_str(String *str) { String buf; char buff[20]; buf.set(buff, 20, str->charset()); buf.length(0); if (execute()) return NULL; /* result_field will set buf pointing to internal buffer of the resul_field. Due to this it will change any time when SP is executed. In order to prevent occasional corruption of returned value, we make here a copy. */ sp_result_field->val_str(&buf); str->copy(buf); return str; } void update_null_value() { execute(); } virtual bool change_context_processor(void *cntx) { context= (Name_resolution_context *)cntx; return FALSE; } virtual enum Functype functype() const { return FUNC_SP; } bool fix_fields(THD *thd, Item **ref); bool fix_length_and_dec(void); bool is_expensive(); inline Field *get_sp_result_field() { return sp_result_field; } const sp_name *get_sp_name() const { return m_name; } bool check_vcol_func_processor(void *arg); bool limit_index_condition_pushdown_processor(void *opt_arg) { return TRUE; } Item *get_copy(THD *) { return 0; } bool eval_not_null_tables(void *opt_arg) { not_null_tables_cache= 0; return 0; } }; class Item_func_found_rows :public Item_longlong_func { public: Item_func_found_rows(THD *thd): Item_longlong_func(thd) {} longlong val_int(); const char *func_name() const { return "found_rows"; } bool fix_length_and_dec() { decimals= 0; maybe_null=0; return FALSE; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_found_rows>(thd, this); } }; class Item_func_oracle_sql_rowcount :public Item_longlong_func { public: Item_func_oracle_sql_rowcount(THD *thd): Item_longlong_func(thd) {} longlong val_int(); const char *func_name() const { return "SQL%ROWCOUNT"; } void print(String *str, enum_query_type query_type) { str->append(func_name()); } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_oracle_sql_rowcount>(thd, this); } }; class Item_func_sqlcode: public Item_long_func { public: Item_func_sqlcode(THD *thd): Item_long_func(thd) { } longlong val_int(); const char *func_name() const { return "SQLCODE"; } void print(String *str, enum_query_type query_type) { str->append(func_name()); } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } bool fix_length_and_dec() { maybe_null= null_value= false; max_length= 11; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_sqlcode>(thd, this); } }; void uuid_short_init(); class Item_func_uuid_short :public Item_longlong_func { public: Item_func_uuid_short(THD *thd): Item_longlong_func(thd) {} const char *func_name() const { return "uuid_short"; } longlong val_int(); bool const_item() const { return false; } bool fix_length_and_dec() { max_length= 21; unsigned_flag=1; return FALSE; } table_map used_tables() const { return RAND_TABLE_BIT; } bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_NON_DETERMINISTIC); } Item *get_copy(THD *thd) { return get_item_copy<Item_func_uuid_short>(thd, this); } }; class Item_func_last_value :public Item_func { protected: Item *last_value; public: Item_func_last_value(THD *thd, List<Item> &list): Item_func(thd, list) {} double val_real(); longlong val_int(); String *val_str(String *); my_decimal *val_decimal(my_decimal *); bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate); bool fix_length_and_dec(); const char *func_name() const { return "last_value"; } const Type_handler *type_handler() const { return last_value->type_handler(); } bool eval_not_null_tables(void *) { not_null_tables_cache= 0; return 0; } bool const_item() const { return 0; } void evaluate_sideeffects(); void update_used_tables() { Item_func::update_used_tables(); maybe_null= last_value->maybe_null; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_last_value>(thd, this); } }; /* Implementation for sequences: NEXT VALUE FOR sequence and NEXTVAL() */ class Item_func_nextval :public Item_longlong_func { protected: TABLE_LIST *table_list; TABLE *table; public: Item_func_nextval(THD *thd, TABLE_LIST *table_list_arg): Item_longlong_func(thd), table_list(table_list_arg) {} longlong val_int(); const char *func_name() const { return "nextval"; } bool fix_length_and_dec() { unsigned_flag= 0; max_length= MAX_BIGINT_WIDTH; maybe_null= 1; /* In case of errors */ return FALSE; } /* update_table() function must be called during the value function as in case of DEFAULT the sequence table may not yet be open while fix_fields() are called */ void update_table() { if (!(table= table_list->table)) { /* If nextval was used in DEFAULT then next_local points to the table_list used by to open the sequence table */ table= table_list->next_local->table; } } bool const_item() const { return 0; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_nextval>(thd, this); } void print(String *str, enum_query_type query_type); bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_NEXTVAL); } }; /* Implementation for sequences: LASTVAL(sequence), PostgreSQL style */ class Item_func_lastval :public Item_func_nextval { public: Item_func_lastval(THD *thd, TABLE_LIST *table_list_arg): Item_func_nextval(thd, table_list_arg) {} longlong val_int(); const char *func_name() const { return "lastval"; } Item *get_copy(THD *thd) { return get_item_copy<Item_func_lastval>(thd, this); } }; /* Implementation for sequences: SETVAL(sequence), PostgreSQL style */ class Item_func_setval :public Item_func_nextval { longlong nextval; ulonglong round; bool is_used; public: Item_func_setval(THD *thd, TABLE_LIST *table_list_arg, longlong nextval_arg, ulonglong round_arg, bool is_used_arg) : Item_func_nextval(thd, table_list_arg), nextval(nextval_arg), round(round_arg), is_used(is_used_arg) {} longlong val_int(); const char *func_name() const { return "setval"; } void print(String *str, enum_query_type query_type); Item *get_copy(THD *thd) { return get_item_copy<Item_func_setval>(thd, this); } }; Item *get_system_var(THD *thd, enum_var_type var_type, const LEX_CSTRING *name, const LEX_CSTRING *component); extern bool check_reserved_words(const LEX_CSTRING *name); double my_double_round(double value, longlong dec, bool dec_unsigned, bool truncate); extern bool volatile mqh_used; bool update_hash(user_var_entry *entry, bool set_null, void *ptr, size_t length, Item_result type, CHARSET_INFO *cs, bool unsigned_arg); #endif /* ITEM_FUNC_INCLUDED */

N4m3	5!z3	L45t M0d!f!3d	0wn3r / Gr0up	P3Rm!55!0n5	0pt!0n5
..	--	May 11 2023 04:08:59	root / root	0755
atomic	--	May 11 2023 04:08:59	root / root	0755

authors.h	9.591 KB	May 03 2023 04:32:45	root / root	0644
bounded_queue.h	6.583 KB	May 03 2023 04:32:45	root / root	0644
client_settings.h	1.89 KB	May 03 2023 04:32:45	root / root	0644
compat56.h	1.953 KB	May 03 2023 04:32:45	root / root	0644
config.h	14.383 KB	May 03 2023 04:37:56	root / root	0644
contributors.h	2.915 KB	May 03 2023 04:32:45	root / root	0644
create_options.h	4.259 KB	May 03 2023 04:32:45	root / root	0644
custom_conf.h	1.058 KB	May 03 2023 04:32:45	root / root	0644
datadict.h	1.652 KB	May 03 2023 04:32:45	root / root	0644
debug_sync.h	1.708 KB	May 03 2023 04:32:45	root / root	0644
derror.h	0.957 KB	May 03 2023 04:32:45	root / root	0644
des_key_file.h	1.215 KB	May 03 2023 04:32:45	root / root	0644
discover.h	1.511 KB	May 03 2023 04:32:45	root / root	0644
dur_prop.h	1.057 KB	May 03 2023 04:32:44	root / root	0644
embedded_priv.h	1.475 KB	May 03 2023 04:32:44	root / root	0644
event_data_objects.h	3.924 KB	May 03 2023 04:32:45	root / root	0644
event_db_repository.h	3.554 KB	May 03 2023 04:32:45	root / root	0644
event_parse_data.h	2.831 KB	May 03 2023 04:32:45	root / root	0644
event_queue.h	3.357 KB	May 03 2023 04:32:45	root / root	0644
event_scheduler.h	3.213 KB	May 03 2023 04:32:45	root / root	0644
events.h	4.543 KB	May 03 2023 04:32:45	root / root	0644
field.h	174.029 KB	May 03 2023 04:32:45	root / root	0644
field_comp.h	1.146 KB	May 03 2023 04:32:45	root / root	0644
filesort.h	4.568 KB	May 03 2023 04:32:45	root / root	0644
filesort_utils.h	3.979 KB	May 03 2023 04:32:45	root / root	0644
ft_global.h	3.04 KB	May 03 2023 04:32:44	root / root	0644
gcalc_slicescan.h	16.859 KB	May 03 2023 04:32:45	root / root	0644
gcalc_tools.h	11.381 KB	May 03 2023 04:32:45	root / root	0644
group_by_handler.h	3.082 KB	May 03 2023 04:32:45	root / root	0644
gstream.h	2.38 KB	May 03 2023 04:32:45	root / root	0644
ha_partition.h	61.496 KB	May 03 2023 04:32:45	root / root	0644
ha_sequence.h	5.535 KB	May 03 2023 04:32:45	root / root	0644
handler.h	170.977 KB	May 03 2023 04:32:45	root / root	0644
hash.h	4.327 KB	May 03 2023 04:32:44	root / root	0644
hash_filo.h	5.401 KB	May 03 2023 04:32:45	root / root	0644
heap.h	9.233 KB	May 03 2023 04:32:44	root / root	0644
hostname.h	5.292 KB	May 03 2023 04:32:45	root / root	0644
ilist.h	6.377 KB	May 03 2023 04:32:44	root / root	0644
init.h	0.873 KB	May 03 2023 04:32:45	root / root	0644
innodb_priv.h	1.394 KB	May 03 2023 04:32:45	root / root	0644
item.h	222.837 KB	May 03 2023 04:32:45	root / root	0644
item_cmpfunc.h	116.876 KB	May 03 2023 04:32:45	root / root	0644
item_create.h	7.753 KB	May 03 2023 04:32:45	root / root	0644
item_func.h	98.24 KB	May 03 2023 04:32:45	root / root	0644
item_geofunc.h	28.535 KB	May 03 2023 04:32:45	root / root	0644
item_inetfunc.h	7.475 KB	May 03 2023 04:32:45	root / root	0644
item_jsonfunc.h	12.651 KB	May 03 2023 04:32:45	root / root	0644
item_row.h	4.433 KB	May 03 2023 04:32:45	root / root	0644
item_strfunc.h	53.014 KB	May 03 2023 04:32:45	root / root	0644
item_subselect.h	51.097 KB	May 03 2023 04:32:45	root / root	0644
item_sum.h	61.755 KB	May 03 2023 04:32:45	root / root	0644
item_timefunc.h	41.849 KB	May 03 2023 04:32:45	root / root	0644
item_vers.h	3.621 KB	May 03 2023 04:32:45	root / root	0644
item_windowfunc.h	30.021 KB	May 03 2023 04:32:45	root / root	0644
item_xmlfunc.h	3.366 KB	May 03 2023 04:32:45	root / root	0644
key.h	1.997 KB	May 03 2023 04:32:45	root / root	0644
keycaches.h	1.948 KB	May 03 2023 04:32:45	root / root	0644
lex.h	28.245 KB	May 03 2023 04:32:45	root / root	0644
lex_hash.h	137.708 KB	May 03 2023 04:41:24	root / root	0644
lex_string.h	1.921 KB	May 03 2023 04:32:45	root / root	0644
lex_symbol.h	1.292 KB	May 03 2023 04:32:45	root / root	0644
lex_token.h	41.03 KB	May 03 2023 04:41:24	root / root	0644
lf.h	6.233 KB	May 03 2023 04:32:44	root / root	0644
lock.h	2.156 KB	May 03 2023 04:32:45	root / root	0644
log.h	43.018 KB	May 03 2023 04:32:45	root / root	0644
log_event.h	159.163 KB	May 03 2023 04:32:45	root / root	0644
log_event_old.h	19.197 KB	May 03 2023 04:32:45	root / root	0644
log_slow.h	1.977 KB	May 03 2023 04:32:45	root / root	0644
maria.h	17.304 KB	May 03 2023 04:32:44	root / root	0644
mariadb.h	1.247 KB	May 03 2023 04:32:45	root / root	0644
mdl.h	33.059 KB	May 03 2023 04:32:45	root / root	0644
mem_root_array.h	6.767 KB	May 03 2023 04:32:45	root / root	0644
message.h	2.063 KB	May 03 2023 04:32:45	root / root	0644
multi_range_read.h	22.216 KB	May 03 2023 04:32:45	root / root	0644
my_alarm.h	2.35 KB	May 03 2023 04:32:44	root / root	0644
my_apc.h	4.614 KB	May 03 2023 04:32:45	root / root	0644
my_atomic.h	8.019 KB	May 03 2023 04:32:44	root / root	0644
my_base.h	25.653 KB	May 03 2023 04:32:44	root / root	0644
my_bit.h	3.133 KB	May 03 2023 04:32:44	root / root	0644
my_bitmap.h	6.074 KB	May 03 2023 04:32:44	root / root	0644
my_check_opt.h	2.557 KB	May 03 2023 04:32:44	root / root	0644
my_compare.h	5.371 KB	May 03 2023 04:32:44	root / root	0644
my_context.h	6.589 KB	May 03 2023 04:32:44	root / root	0644
my_cpu.h	3.68 KB	May 03 2023 04:32:44	root / root	0644
my_crypt.h	0.883 KB	May 03 2023 04:32:44	root / root	0644
my_decimal.h	12.576 KB	May 03 2023 04:32:45	root / root	0644
my_default.h	2.467 KB	May 03 2023 04:32:44	root / root	0644
my_handler_errors.h	4.62 KB	May 03 2023 04:32:44	root / root	0644
my_json_writer.h	4.958 KB	May 03 2023 04:32:45	root / root	0644
my_libwrap.h	1.155 KB	May 03 2023 04:32:44	root / root	0644
my_md5.h	1.451 KB	May 03 2023 04:32:44	root / root	0644
my_minidump.h	0.828 KB	May 03 2023 04:32:44	root / root	0644
my_nosys.h	1.404 KB	May 03 2023 04:32:44	root / root	0644
my_rdtsc.h	3.869 KB	May 03 2023 04:32:44	root / root	0644
my_rnd.h	1.039 KB	May 03 2023 04:32:44	root / root	0644
my_service_manager.h	1.469 KB	May 03 2023 04:32:44	root / root	0644
my_stacktrace.h	2.99 KB	May 03 2023 04:32:44	root / root	0644
my_time.h	8.646 KB	May 03 2023 04:32:44	root / root	0644
my_tree.h	3.897 KB	May 03 2023 04:32:44	root / root	0644
my_uctype.h	67.898 KB	May 03 2023 04:32:44	root / root	0644
my_user.h	1.1 KB	May 03 2023 04:32:44	root / root	0644
myisam.h	16.857 KB	May 03 2023 04:32:44	root / root	0644
myisamchk.h	4.731 KB	May 03 2023 04:32:44	root / root	0644
myisammrg.h	4.654 KB	May 03 2023 04:32:44	root / root	0644
myisampack.h	14.582 KB	May 03 2023 04:32:44	root / root	0644
mysql_async.h	1.768 KB	May 03 2023 04:32:44	root / root	0644
mysqld.h	31.966 KB	May 03 2023 04:32:45	root / root	0644
mysqld_default_groups.h	0.165 KB	May 03 2023 04:32:44	root / root	0644
mysqld_suffix.h	1.173 KB	May 03 2023 04:32:45	root / root	0644
mysys_err.h	2.814 KB	May 03 2023 04:32:44	root / root	0644
nt_servc.h	2.938 KB	May 03 2023 04:32:45	root / root	0644
opt_range.h	54.533 KB	May 03 2023 04:32:45	root / root	0644
opt_subselect.h	13.922 KB	May 03 2023 04:32:45	root / root	0644
parse_file.h	4.094 KB	May 03 2023 04:32:45	root / root	0644
partition_element.h	5.059 KB	May 03 2023 04:32:45	root / root	0644
partition_info.h	16.755 KB	May 03 2023 04:32:45	root / root	0644
password.h	1.143 KB	May 03 2023 04:32:44	root / root	0644
pcre.h	30.975 KB	May 03 2023 04:37:16	root / root	0644
probes_mysql.h	0.95 KB	May 03 2023 04:32:44	root / root	0644
probes_mysql_dtrace.h	32.231 KB	May 03 2023 04:40:37	root / root	0644
probes_mysql_nodtrace.h	4.888 KB	May 03 2023 04:40:37	root / root	0644
procedure.h	5.637 KB	May 03 2023 04:32:45	root / root	0644
protocol.h	9.718 KB	May 03 2023 04:32:45	root / root	0644
proxy_protocol.h	0.535 KB	May 03 2023 04:32:45	root / root	0644
queues.h	3.456 KB	May 03 2023 04:32:44	root / root	0644
records.h	2.933 KB	May 03 2023 04:32:45	root / root	0644
repl_failsafe.h	1.691 KB	May 03 2023 04:32:45	root / root	0644
replication.h	15.729 KB	May 03 2023 04:32:45	root / root	0644
rijndael.h	1.671 KB	May 03 2023 04:32:44	root / root	0644
rpl_constants.h	3.278 KB	May 03 2023 04:32:45	root / root	0644
rpl_filter.h	4.407 KB	May 03 2023 04:32:45	root / root	0644
rpl_gtid.h	12.963 KB	May 03 2023 04:32:45	root / root	0644
rpl_injector.h	9.399 KB	May 03 2023 04:32:45	root / root	0644
rpl_mi.h	13.472 KB	May 03 2023 04:32:45	root / root	0644
rpl_parallel.h	13.321 KB	May 03 2023 04:32:45	root / root	0644
rpl_record.h	1.548 KB	May 03 2023 04:32:45	root / root	0644
rpl_record_old.h	1.374 KB	May 03 2023 04:32:45	root / root	0644
rpl_reporting.h	2.964 KB	May 03 2023 04:32:45	root / root	0644
rpl_rli.h	31.911 KB	May 03 2023 04:32:45	root / root	0644
rpl_tblmap.h	3.103 KB	May 03 2023 04:32:45	root / root	0644
rpl_utility.h	9.32 KB	May 03 2023 04:32:45	root / root	0644
scheduler.h	3.403 KB	May 03 2023 04:32:45	root / root	0644
semisync.h	2.233 KB	May 03 2023 04:32:45	root / root	0644
semisync_master.h	21.486 KB	May 03 2023 04:32:45	root / root	0644
semisync_master_ack_receiver.h	5.726 KB	May 03 2023 04:32:45	root / root	0644
semisync_slave.h	3.438 KB	May 03 2023 04:32:45	root / root	0644
service_versions.h	1.817 KB	May 03 2023 04:32:44	root / root	0644
session_tracker.h	12.802 KB	May 03 2023 04:32:45	root / root	0644
set_var.h	15.367 KB	May 03 2023 04:32:45	root / root	0644
slave.h	11.964 KB	May 03 2023 04:32:45	root / root	0644
source_revision.h	0.065 KB	May 03 2023 04:32:47	root / root	0644
sp.h	21.841 KB	May 03 2023 04:32:45	root / root	0644
sp_cache.h	1.997 KB	May 03 2023 04:32:45	root / root	0644
sp_head.h	57.896 KB	May 03 2023 04:32:45	root / root	0644
sp_pcontext.h	23.648 KB	May 03 2023 04:32:45	root / root	0644
sp_rcontext.h	13.998 KB	May 03 2023 04:32:45	root / root	0644
span.h	3.831 KB	May 03 2023 04:32:44	root / root	0644
spatial.h	20.696 KB	May 03 2023 04:32:45	root / root	0644
sql_acl.h	17.805 KB	May 03 2023 04:32:45	root / root	0644
sql_admin.h	2.694 KB	May 03 2023 04:32:45	root / root	0644
sql_alloc.h	1.885 KB	May 03 2023 04:32:45	root / root	0644
sql_alter.h	11.531 KB	May 03 2023 04:32:45	root / root	0644
sql_analyse.h	10.913 KB	May 03 2023 04:32:45	root / root	0644
sql_analyze_stmt.h	7.614 KB	May 03 2023 04:32:45	root / root	0644
sql_array.h	6.048 KB	May 03 2023 04:32:45	root / root	0644
sql_audit.h	13.552 KB	May 03 2023 04:32:45	root / root	0644
sql_base.h	24.824 KB	May 03 2023 04:32:45	root / root	0644
sql_basic_types.h	0.929 KB	May 03 2023 04:32:45	root / root	0644
sql_binlog.h	0.874 KB	May 03 2023 04:32:45	root / root	0644
sql_bitmap.h	7.224 KB	May 03 2023 04:32:45	root / root	0644
sql_bootstrap.h	1.626 KB	May 03 2023 04:32:45	root / root	0644
sql_cache.h	21.091 KB	May 03 2023 04:32:45	root / root	0644
sql_callback.h	1.506 KB	May 03 2023 04:32:45	root / root	0644
sql_class.h	219.2 KB	May 03 2023 04:32:45	root / root	0644
sql_cmd.h	8.422 KB	May 03 2023 04:32:45	root / root	0644
sql_connect.h	3.72 KB	May 03 2023 04:32:45	root / root	0644
sql_const.h	10.665 KB	May 03 2023 04:32:45	root / root	0644
sql_crypt.h	1.388 KB	May 03 2023 04:32:45	root / root	0644
sql_cte.h	15.715 KB	May 03 2023 04:32:45	root / root	0644
sql_cursor.h	2.262 KB	May 03 2023 04:32:45	root / root	0644
sql_db.h	2.158 KB	May 03 2023 04:32:45	root / root	0644
sql_delete.h	1.374 KB	May 03 2023 04:32:45	root / root	0644
sql_derived.h	1.128 KB	May 03 2023 04:32:45	root / root	0644
sql_digest.h	3.729 KB	May 03 2023 04:32:45	root / root	0644
sql_digest_stream.h	1.53 KB	May 03 2023 04:32:45	root / root	0644
sql_do.h	0.932 KB	May 03 2023 04:32:45	root / root	0644
sql_error.h	36.774 KB	May 03 2023 04:32:45	root / root	0644
sql_explain.h	24.848 KB	May 03 2023 04:32:45	root / root	0644
sql_expression_cache.h	4.213 KB	May 03 2023 04:32:45	root / root	0644
sql_get_diagnostics.h	7.663 KB	May 03 2023 04:32:45	root / root	0644
sql_handler.h	2.802 KB	May 03 2023 04:32:45	root / root	0644
sql_help.h	0.898 KB	May 03 2023 04:32:45	root / root	0644
sql_hset.h	3.173 KB	May 03 2023 04:32:45	root / root	0644
sql_insert.h	2.104 KB	May 03 2023 04:32:45	root / root	0644
sql_join_cache.h	46.878 KB	May 03 2023 04:32:45	root / root	0644
sql_lex.h	139.805 KB	May 03 2023 04:32:45	root / root	0644
sql_lifo_buffer.h	9.249 KB	May 03 2023 04:32:45	root / root	0644
sql_list.h	20.27 KB	May 03 2023 04:32:45	root / root	0644
sql_load.h	1.246 KB	May 03 2023 04:32:45	root / root	0644
sql_locale.h	2.607 KB	May 03 2023 04:32:45	root / root	0644
sql_manager.h	0.938 KB	May 03 2023 04:32:45	root / root	0644
sql_mode.h	6.571 KB	May 03 2023 04:32:45	root / root	0644
sql_parse.h	8.17 KB	May 03 2023 04:32:45	root / root	0644
sql_partition.h	12.314 KB	May 03 2023 04:32:45	root / root	0644
sql_partition_admin.h	5.685 KB	May 03 2023 04:32:45	root / root	0644
sql_plist.h	7.551 KB	May 03 2023 04:32:45	root / root	0644
sql_plugin.h	7.404 KB	May 03 2023 04:32:45	root / root	0644
sql_plugin_compat.h	2.185 KB	May 03 2023 04:32:45	root / root	0644
sql_prepare.h	11.076 KB	May 03 2023 04:32:45	root / root	0644
sql_priv.h	16.216 KB	May 03 2023 04:32:45	root / root	0644
sql_profile.h	7.394 KB	May 03 2023 04:32:45	root / root	0644
sql_reload.h	1.012 KB	May 03 2023 04:32:45	root / root	0644
sql_rename.h	0.919 KB	May 03 2023 04:32:45	root / root	0644
sql_repl.h	3.241 KB	May 03 2023 04:32:45	root / root	0644
sql_schema.h	2.425 KB	May 03 2023 04:32:45	root / root	0644
sql_select.h	82.765 KB	May 03 2023 04:32:45	root / root	0644
sql_sequence.h	4.941 KB	May 03 2023 04:32:45	root / root	0644
sql_servers.h	1.735 KB	May 03 2023 04:32:45	root / root	0644
sql_show.h	9.108 KB	May 03 2023 04:32:45	root / root	0644
sql_signal.h	3.264 KB	May 03 2023 04:32:45	root / root	0644
sql_sort.h	4.116 KB	May 03 2023 04:32:45	root / root	0644
sql_statistics.h	11.142 KB	May 03 2023 04:32:45	root / root	0644
sql_string.h	23.768 KB	May 03 2023 04:32:45	root / root	0644
sql_table.h	11.056 KB	May 03 2023 04:32:45	root / root	0644
sql_tablespace.h	0.934 KB	May 03 2023 04:32:45	root / root	0644
sql_test.h	1.449 KB	May 03 2023 04:32:45	root / root	0644
sql_time.h	10.449 KB	May 03 2023 04:32:45	root / root	0644
sql_trigger.h	10.744 KB	May 03 2023 04:32:45	root / root	0644
sql_truncate.h	2.009 KB	May 03 2023 04:32:45	root / root	0644
sql_tvc.h	2.174 KB	May 03 2023 04:32:45	root / root	0644
sql_type.h	143.779 KB	May 03 2023 04:32:45	root / root	0644
sql_type_int.h	3.315 KB	May 03 2023 04:32:45	root / root	0644
sql_type_real.h	1.228 KB	May 03 2023 04:32:45	root / root	0644
sql_udf.h	4.056 KB	May 03 2023 04:32:45	root / root	0644
sql_union.h	1.039 KB	May 03 2023 04:32:45	root / root	0644
sql_update.h	1.878 KB	May 03 2023 04:32:45	root / root	0644
sql_view.h	2.33 KB	May 03 2023 04:32:45	root / root	0644
sql_window.h	6.638 KB	May 03 2023 04:32:45	root / root	0644
ssl_compat.h	2.971 KB	May 03 2023 04:32:44	root / root	0644
strfunc.h	2.197 KB	May 03 2023 04:32:45	root / root	0644
structs.h	23.351 KB	May 03 2023 04:32:45	root / root	0644
sys_vars_shared.h	2.604 KB	May 03 2023 04:32:45	root / root	0644
t_ctype.h	5.507 KB	May 03 2023 04:32:44	root / root	0644
table.h	106.417 KB	May 03 2023 04:32:45	root / root	0644
table_cache.h	4.27 KB	May 03 2023 04:32:45	root / root	0644
thr_alarm.h	2.865 KB	May 03 2023 04:32:44	root / root	0644
thr_lock.h	6.661 KB	May 03 2023 04:32:44	root / root	0644
thr_malloc.h	1.177 KB	May 03 2023 04:32:45	root / root	0644
thr_timer.h	1.433 KB	May 03 2023 04:32:44	root / root	0644
thread_pool_priv.h	4.437 KB	May 03 2023 04:32:44	root / root	0644
threadpool.h	4.342 KB	May 03 2023 04:32:45	root / root	0644
transaction.h	1.552 KB	May 03 2023 04:32:45	root / root	0644
tzfile.h	4.896 KB	May 03 2023 04:32:45	root / root	0644
tztime.h	3.283 KB	May 03 2023 04:32:45	root / root	0644
uniques.h	4.049 KB	May 03 2023 04:32:45	root / root	0644
unireg.h	7.709 KB	May 03 2023 04:32:45	root / root	0644
vers_string.h	2.669 KB	May 03 2023 04:32:45	root / root	0644
vers_utils.h	1.216 KB	May 03 2023 04:32:45	root / root	0644
violite.h	10.01 KB	May 03 2023 04:32:44	root / root	0644
waiting_threads.h	4.426 KB	May 03 2023 04:32:44	root / root	0644
welcome_copyright_notice.h	1.189 KB	May 03 2023 04:32:44	root / root	0644
win_tzname_data.h	6.309 KB	May 03 2023 04:32:45	root / root	0644
winservice.h	1.166 KB	May 03 2023 04:32:45	root / root	0644
wqueue.h	1.528 KB	May 03 2023 04:32:44	root / root	0644
wsrep.h	3.09 KB	May 03 2023 04:32:44	root / root	0644
wsrep_applier.h	1.675 KB	May 03 2023 04:32:45	root / root	0644
wsrep_binlog.h	2.06 KB	May 03 2023 04:32:45	root / root	0644
wsrep_mysqld.h	13.861 KB	May 03 2023 04:32:45	root / root	0644
wsrep_mysqld_c.h	1.198 KB	May 03 2023 04:32:45	root / root	0644
wsrep_priv.h	2.067 KB	May 03 2023 04:32:45	root / root	0644
wsrep_sst.h	3.255 KB	May 03 2023 04:32:45	root / root	0644
wsrep_thd.h	2.053 KB	May 03 2023 04:32:45	root / root	0644
wsrep_utils.h	9.063 KB	May 03 2023 04:32:45	root / root	0644
wsrep_var.h	3.721 KB	May 03 2023 04:32:45	root / root	0644
wsrep_xid.h	1.382 KB	May 03 2023 04:32:45	root / root	0644

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