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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 Sun Microsystems
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Mostly this file is used in the server. But a little part of it is used in
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mysqlbinlog too (definition of SELECT_DISTINCT and others).
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The consequence is that 90% of the file is wrapped in \#ifndef DRIZZLE_CLIENT,
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except the part which must be in the server and in the client.
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@TODO Name this file better. "priv" could mean private, privileged, privileges.
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#ifndef DRIZZLE_SERVER_SERVER_INCLUDES_H
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#define DRIZZLE_SERVER_SERVER_INCLUDES_H
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/* Some forward declarations just for the server */
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typedef Comp_creator* (*chooser_compare_func_creator)(bool invert);
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* Contains all headers, definitions, and declarations common to
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* the server and the plugin infrastructure, and not the client
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#include <drizzled/common_includes.h>
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/* Range optimization API/library */
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#include <drizzled/opt_range.h>
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/* Simple error injection (crash) module */
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#include <drizzled/error_injection.h>
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/* API for connecting, logging in to a drizzled server */
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#include <drizzled/connect.h>
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/* Routines for dropping, repairing, checking schema tables */
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#include <drizzled/sql_table.h>
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int mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create, bool silent);
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bool mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create);
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bool mysql_rm_db(THD *thd,char *db,bool if_exists, bool silent);
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bool mysql_change_db(THD *thd, const LEX_STRING *new_db_name,
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bool mysql_opt_change_db(THD *thd,
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const LEX_STRING *new_db_name,
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LEX_STRING *saved_db_name,
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bool *cur_db_changed);
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void write_bin_log(THD *thd, bool clear_error,
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char const *query, ulong query_length);
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void mysql_binlog_send(THD* thd, char* log_ident, my_off_t pos, uint16_t flags);
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void mysql_client_binlog_statement(THD *thd);
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bool mysql_rename_tables(THD *thd, TableList *table_list, bool silent);
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bool do_rename(THD *thd, TableList *ren_table, char *new_db,
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char *new_table_name, char *new_table_alias,
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void mysql_parse(THD *thd, const char *inBuf, uint32_t length,
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const char ** semicolon);
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bool mysql_test_parse_for_slave(THD *thd,char *inBuf,uint32_t length);
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bool is_update_query(enum enum_sql_command command);
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bool alloc_query(THD *thd, const char *packet, uint32_t packet_length);
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void mysql_reset_thd_for_next_command(THD *thd);
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void create_select_for_variable(const char *var_name);
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void mysql_init_multi_delete(LEX *lex);
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bool multi_delete_set_locks_and_link_aux_tables(LEX *lex);
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void init_update_queries(void);
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bool do_command(THD *thd);
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bool dispatch_command(enum enum_server_command command, THD *thd,
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char* packet, uint32_t packet_length);
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void log_slow_statement(THD *thd);
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bool append_file_to_dir(THD *thd, const char **filename_ptr,
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const char *table_name);
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bool reload_cache(THD *thd, ulong options, TableList *tables, bool *write_to_binlog);
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bool check_simple_select();
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void mysql_init_select(LEX *lex);
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bool mysql_new_select(LEX *lex, bool move_down);
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void init_max_user_conn(void);
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void free_max_user_conn(void);
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pthread_handler_t handle_bootstrap(void *arg);
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int mysql_execute_command(THD *thd);
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bool check_dup(const char *db, const char *name, TableList *tables);
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bool check_table_access(THD *thd, ulong want_access, TableList *tables,
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bool any_combination_of_privileges_will_do,
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General routine to change field->ptr of a NULL-terminated array of Field
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objects. Useful when needed to call val_int, val_str or similar and the
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field data is not in table->record[0] but in some other structure.
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set_key_field_ptr changes all fields of an index using a key_info object.
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All methods presume that there is at least one field to change.
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void set_field_ptr(Field **ptr, const unsigned char *new_buf, const unsigned char *old_buf);
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void set_key_field_ptr(KEY *key_info, const unsigned char *new_buf,
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const unsigned char *old_buf);
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void table_cache_free(void);
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bool table_cache_init(void);
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bool table_def_init(void);
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void table_def_free(void);
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void assign_new_table_id(TABLE_SHARE *share);
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uint32_t cached_open_tables(void);
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uint32_t cached_table_definitions(void);
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void kill_mysql(void);
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void close_connection(THD *thd, uint32_t errcode, bool lock);
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Table *create_virtual_tmp_table(THD *thd, List<Create_field> &field_list);
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bool mysql_xa_recover(THD *thd);
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SORT_FIELD * make_unireg_sortorder(order_st *order, uint32_t *length,
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SORT_FIELD *sortorder);
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int setup_order(THD *thd, Item **ref_pointer_array, TableList *tables,
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List<Item> &fields, List <Item> &all_fields, order_st *order);
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int setup_group(THD *thd, Item **ref_pointer_array, TableList *tables,
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List<Item> &fields, List<Item> &all_fields, order_st *order,
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bool *hidden_group_fields);
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bool fix_inner_refs(THD *thd, List<Item> &all_fields, SELECT_LEX *select,
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Item **ref_pointer_array);
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bool handle_select(THD *thd, LEX *lex, select_result *result,
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ulong setup_tables_done_option);
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bool mysql_select(THD *thd, Item ***rref_pointer_array,
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TableList *tables, uint32_t wild_num, List<Item> &list,
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COND *conds, uint32_t og_num, order_st *order, order_st *group,
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Item *having, order_st *proc_param, uint64_t select_type,
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select_result *result, SELECT_LEX_UNIT *unit,
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SELECT_LEX *select_lex);
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void free_underlaid_joins(THD *thd, SELECT_LEX *select);
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bool mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit,
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select_result *result);
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int mysql_explain_select(THD *thd, SELECT_LEX *sl, char const *type,
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select_result *result);
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bool mysql_union(THD *thd, LEX *lex, select_result *result,
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SELECT_LEX_UNIT *unit, ulong setup_tables_done_option);
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bool mysql_handle_derived(LEX *lex, bool (*processor)(THD *thd,
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bool mysql_derived_prepare(THD *thd, LEX *lex, TableList *t);
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bool mysql_derived_filling(THD *thd, LEX *lex, TableList *t);
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Field *create_tmp_field(THD *thd, Table *table,Item *item, Item::Type type,
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Item ***copy_func, Field **from_field,
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bool group, bool modify_item,
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bool table_cant_handle_bit_fields,
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bool make_copy_field,
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uint32_t convert_blob_length);
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void sp_prepare_create_field(THD *thd, Create_field *sql_field);
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int prepare_create_field(Create_field *sql_field,
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uint32_t *blob_columns,
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int *timestamps, int *timestamps_with_niladic,
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int64_t table_flags);
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bool mysql_create_table(THD *thd,const char *db, const char *table_name,
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HA_CREATE_INFO *create_info,
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Alter_info *alter_info,
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bool tmp_table, uint32_t select_field_count);
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bool mysql_create_table_no_lock(THD *thd, const char *db,
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const char *table_name,
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HA_CREATE_INFO *create_info,
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Alter_info *alter_info,
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bool tmp_table, uint32_t select_field_count);
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bool mysql_alter_table(THD *thd, char *new_db, char *new_name,
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HA_CREATE_INFO *create_info,
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TableList *table_list,
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Alter_info *alter_info,
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uint32_t order_num, order_st *order, bool ignore);
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bool mysql_recreate_table(THD *thd, TableList *table_list);
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bool mysql_create_like_table(THD *thd, TableList *table,
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TableList *src_table,
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HA_CREATE_INFO *create_info);
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bool mysql_rename_table(handlerton *base, const char *old_db,
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const char * old_name, const char *new_db,
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const char * new_name, uint32_t flags);
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bool mysql_prepare_update(THD *thd, TableList *table_list,
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Item **conds, uint32_t order_num, order_st *order);
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int mysql_update(THD *thd,TableList *tables,List<Item> &fields,
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List<Item> &values,COND *conds,
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uint32_t order_num, order_st *order, ha_rows limit,
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enum enum_duplicates handle_duplicates, bool ignore);
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bool mysql_multi_update(THD *thd, TableList *table_list,
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List<Item> *fields, List<Item> *values,
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COND *conds, uint64_t options,
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enum enum_duplicates handle_duplicates, bool ignore,
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SELECT_LEX_UNIT *unit, SELECT_LEX *select_lex);
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bool mysql_prepare_insert(THD *thd, TableList *table_list, Table *table,
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List<Item> &fields, List_item *values,
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List<Item> &update_fields,
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List<Item> &update_values, enum_duplicates duplic,
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COND **where, bool select_insert,
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bool check_fields, bool abort_on_warning);
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bool mysql_insert(THD *thd,TableList *table,List<Item> &fields,
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List<List_item> &values, List<Item> &update_fields,
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List<Item> &update_values, enum_duplicates flag,
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int check_that_all_fields_are_given_values(THD *thd, Table *entry,
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TableList *table_list);
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void prepare_triggers_for_insert_stmt(Table *table);
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int mysql_prepare_delete(THD *thd, TableList *table_list, Item **conds);
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bool mysql_delete(THD *thd, TableList *table_list, COND *conds,
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SQL_LIST *order, ha_rows rows, uint64_t options,
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bool reset_auto_increment);
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bool mysql_truncate(THD *thd, TableList *table_list, bool dont_send_ok);
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uint32_t create_table_def_key(THD *thd, char *key, TableList *table_list,
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TABLE_SHARE *get_table_share(THD *thd, TableList *table_list, char *key,
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uint32_t key_length, uint32_t db_flags, int *error);
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void release_table_share(TABLE_SHARE *share, enum release_type type);
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TABLE_SHARE *get_cached_table_share(const char *db, const char *table_name);
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Table *open_ltable(THD *thd, TableList *table_list, thr_lock_type update,
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uint32_t lock_flags);
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Table *open_table(THD *thd, TableList *table_list, bool *refresh, uint32_t flags);
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bool name_lock_locked_table(THD *thd, TableList *tables);
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bool reopen_name_locked_table(THD* thd, TableList* table_list, bool link_in);
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Table *table_cache_insert_placeholder(THD *thd, const char *key,
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uint32_t key_length);
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bool lock_table_name_if_not_cached(THD *thd, const char *db,
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const char *table_name, Table **table);
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Table *find_locked_table(THD *thd, const char *db,const char *table_name);
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void detach_merge_children(Table *table, bool clear_refs);
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bool fix_merge_after_open(TableList *old_child_list, TableList **old_last,
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TableList *new_child_list, TableList **new_last);
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bool reopen_table(Table *table);
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bool reopen_tables(THD *thd,bool get_locks,bool in_refresh);
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void close_data_files_and_morph_locks(THD *thd, const char *db,
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const char *table_name);
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void close_handle_and_leave_table_as_lock(Table *table);
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bool open_new_frm(THD *thd, TABLE_SHARE *share, const char *alias,
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uint32_t db_stat, uint32_t prgflag,
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uint32_t ha_open_flags, Table *outparam,
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TableList *table_desc, MEM_ROOT *mem_root);
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bool wait_for_tables(THD *thd);
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bool table_is_used(Table *table, bool wait_for_name_lock);
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Table *drop_locked_tables(THD *thd,const char *db, const char *table_name);
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void abort_locked_tables(THD *thd,const char *db, const char *table_name);
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void execute_init_command(THD *thd, sys_var_str *init_command_var,
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rw_lock_t *var_mutex);
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extern Field *not_found_field;
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extern Field *view_ref_found;
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enum find_item_error_report_type {REPORT_ALL_ERRORS, REPORT_EXCEPT_NOT_FOUND,
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IGNORE_ERRORS, REPORT_EXCEPT_NON_UNIQUE,
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IGNORE_EXCEPT_NON_UNIQUE};
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find_field_in_tables(THD *thd, Item_ident *item,
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TableList *first_table, TableList *last_table,
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Item **ref, find_item_error_report_type report_error,
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bool check_privileges, bool register_tree_change);
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find_field_in_table_ref(THD *thd, TableList *table_list,
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const char *name, uint32_t length,
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const char *item_name, const char *db_name,
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const char *table_name, Item **ref,
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bool check_privileges, bool allow_rowid,
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uint32_t *cached_field_index_ptr,
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bool register_tree_change, TableList **actual_table);
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find_field_in_table(THD *thd, Table *table, const char *name, uint32_t length,
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bool allow_rowid, uint32_t *cached_field_index_ptr);
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find_field_in_table_sef(Table *table, const char *name);
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bool mysql_do(THD *thd, List<Item> &values);
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bool append_escaped(String *to_str, String *from_str);
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#include <drizzled/show.h>
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/* information schema */
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extern LEX_STRING INFORMATION_SCHEMA_NAME;
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extern LEX_STRING DRIZZLE_SCHEMA_NAME;
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extern LEX_STRING GENERAL_LOG_NAME;
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extern LEX_STRING SLOW_LOG_NAME;
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extern const LEX_STRING partition_keywords[];
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ST_SCHEMA_TABLE *find_schema_table(THD *thd, const char* table_name);
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ST_SCHEMA_TABLE *get_schema_table(enum enum_schema_tables schema_table_idx);
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int prepare_schema_table(THD *thd, LEX *lex, Table_ident *table_ident,
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enum enum_schema_tables schema_table_idx);
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int make_schema_select(THD *thd, SELECT_LEX *sel,
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enum enum_schema_tables schema_table_idx);
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int mysql_schema_table(THD *thd, LEX *lex, TableList *table_list);
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bool get_schema_tables_result(JOIN *join,
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enum enum_schema_table_state executed_place);
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enum enum_schema_tables get_schema_table_idx(ST_SCHEMA_TABLE *schema_table);
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#define is_schema_db(X) \
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!my_strcasecmp(system_charset_info, INFORMATION_SCHEMA_NAME.str, (X))
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bool mysql_ha_open(THD *thd, TableList *tables, bool reopen);
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bool mysql_ha_close(THD *thd, TableList *tables);
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bool mysql_ha_read(THD *, TableList *,enum enum_ha_read_modes,char *,
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List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows);
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void mysql_ha_flush(THD *thd);
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void mysql_ha_rm_tables(THD *thd, TableList *tables, bool is_locked);
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void mysql_ha_cleanup(THD *thd);
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#define TMP_TABLE_KEY_EXTRA 8
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void set_item_name(Item *item,char *pos,uint32_t length);
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bool add_field_to_list(THD *thd, LEX_STRING *field_name, enum enum_field_types type,
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char *length, char *decimal,
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uint32_t type_modifier,
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enum column_format_type column_format,
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Item *default_value, Item *on_update_value,
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char *change, List<String> *interval_list,
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const CHARSET_INFO * const cs);
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Create_field * new_create_field(THD *thd, char *field_name, enum_field_types type,
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char *length, char *decimals,
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uint32_t type_modifier,
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Item *default_value, Item *on_update_value,
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LEX_STRING *comment, char *change,
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List<String> *interval_list, CHARSET_INFO *cs);
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void store_position_for_column(const char *name);
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bool add_to_list(THD *thd, SQL_LIST &list,Item *group,bool asc);
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bool push_new_name_resolution_context(THD *thd,
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TableList *right_op);
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void add_join_on(TableList *b,Item *expr);
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void add_join_natural(TableList *a,TableList *b,List<String> *using_fields,
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bool add_proc_to_list(THD *thd, Item *item);
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void unlink_open_table(THD *thd, Table *find, bool unlock);
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void drop_open_table(THD *thd, Table *table, const char *db_name,
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const char *table_name);
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void update_non_unique_table_error(TableList *update,
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const char *operation,
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TableList *duplicate);
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SQL_SELECT *make_select(Table *head, table_map const_tables,
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table_map read_tables, COND *conds,
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bool allow_null_cond, int *error);
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extern Item **not_found_item;
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A set of constants used for checking non aggregated fields and sum
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functions mixture in the ONLY_FULL_GROUP_BY_MODE.
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#define NON_AGG_FIELD_USED 1
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#define SUM_FUNC_USED 2
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This enumeration type is used only by the function find_item_in_list
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to return the info on how an item has been resolved against a list
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of possibly aliased items.
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The item can be resolved:
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- against an alias name of the list's element (RESOLVED_AGAINST_ALIAS)
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- against non-aliased field name of the list (RESOLVED_WITH_NO_ALIAS)
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- against an aliased field name of the list (RESOLVED_BEHIND_ALIAS)
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- ignoring the alias name in cases when SQL requires to ignore aliases
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(e.g. when the resolved field reference contains a table name or
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when the resolved item is an expression) (RESOLVED_IGNORING_ALIAS)
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enum enum_resolution_type {
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RESOLVED_IGNORING_ALIAS,
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RESOLVED_BEHIND_ALIAS,
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RESOLVED_WITH_NO_ALIAS,
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RESOLVED_AGAINST_ALIAS
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Item ** find_item_in_list(Item *item, List<Item> &items, uint32_t *counter,
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find_item_error_report_type report_error,
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enum_resolution_type *resolution);
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bool get_key_map_from_key_list(key_map *map, Table *table,
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List<String> *index_list);
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bool insert_fields(THD *thd, Name_resolution_context *context,
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const char *db_name, const char *table_name,
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List_iterator<Item> *it, bool any_privileges);
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bool setup_tables(THD *thd, Name_resolution_context *context,
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List<TableList> *from_clause, TableList *tables,
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TableList **leaves, bool select_insert);
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bool setup_tables_and_check_access(THD *thd,
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Name_resolution_context *context,
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List<TableList> *from_clause,
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int setup_wild(THD *thd, TableList *tables, List<Item> &fields,
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List<Item> *sum_func_list, uint32_t wild_num);
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bool setup_fields(THD *thd, Item** ref_pointer_array,
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List<Item> &item, enum_mark_columns mark_used_columns,
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List<Item> *sum_func_list, bool allow_sum_func);
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inline bool setup_fields_with_no_wrap(THD *thd, Item **ref_pointer_array,
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enum_mark_columns mark_used_columns,
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List<Item> *sum_func_list,
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res= setup_fields(thd, ref_pointer_array, item, mark_used_columns, sum_func_list,
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int setup_conds(THD *thd, TableList *tables, TableList *leaves,
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int setup_ftfuncs(SELECT_LEX* select);
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int init_ftfuncs(THD *thd, SELECT_LEX* select, bool no_order);
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void wait_for_condition(THD *thd, pthread_mutex_t *mutex,
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pthread_cond_t *cond);
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int open_tables(THD *thd, TableList **tables, uint32_t *counter, uint32_t flags);
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/* open_and_lock_tables with optional derived handling */
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int open_and_lock_tables_derived(THD *thd, TableList *tables, bool derived);
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/* simple open_and_lock_tables without derived handling */
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inline int simple_open_n_lock_tables(THD *thd, TableList *tables)
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return open_and_lock_tables_derived(thd, tables, false);
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/* open_and_lock_tables with derived handling */
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inline int open_and_lock_tables(THD *thd, TableList *tables)
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return open_and_lock_tables_derived(thd, tables, true);
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/* simple open_and_lock_tables without derived handling for single table */
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Table *open_n_lock_single_table(THD *thd, TableList *table_l,
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thr_lock_type lock_type);
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bool open_normal_and_derived_tables(THD *thd, TableList *tables, uint32_t flags);
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int lock_tables(THD *thd, TableList *tables, uint32_t counter, bool *need_reopen);
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int decide_logging_format(THD *thd, TableList *tables);
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Table *open_temporary_table(THD *thd, const char *path, const char *db,
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const char *table_name, bool link_in_list,
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open_table_mode open_mode);
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bool rm_temporary_table(handlerton *base, char *path, bool frm_only);
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void free_io_cache(Table *entry);
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void intern_close_table(Table *entry);
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bool close_thread_table(THD *thd, Table **table_ptr);
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void close_temporary_tables(THD *thd);
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void close_tables_for_reopen(THD *thd, TableList **tables);
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TableList *find_table_in_list(TableList *table,
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TableList *TableList::*link,
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const char *table_name);
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TableList *unique_table(THD *thd, TableList *table, TableList *table_list,
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Table *find_temporary_table(THD *thd, const char *db, const char *table_name);
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Table *find_temporary_table(THD *thd, TableList *table_list);
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int drop_temporary_table(THD *thd, TableList *table_list);
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void close_temporary_table(THD *thd, Table *table, bool free_share,
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void close_temporary(Table *table, bool free_share, bool delete_table);
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bool rename_temporary_table(THD* thd, Table *table, const char *new_db,
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const char *table_name);
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void remove_db_from_cache(const char *db);
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bool is_equal(const LEX_STRING *a, const LEX_STRING *b);
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char *make_default_log_name(char *buff,const char* log_ext);
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/* bits for last argument to remove_table_from_cache() */
498
#define RTFC_NO_FLAG 0x0000
499
#define RTFC_OWNED_BY_THD_FLAG 0x0001
500
#define RTFC_WAIT_OTHER_THREAD_FLAG 0x0002
501
#define RTFC_CHECK_KILLED_FLAG 0x0004
502
bool remove_table_from_cache(THD *thd, const char *db, const char *table,
505
#define NORMAL_PART_NAME 0
506
#define TEMP_PART_NAME 1
507
#define RENAMED_PART_NAME 2
509
void mem_alloc_error(size_t size);
511
#define WFRM_WRITE_SHADOW 1
512
#define WFRM_INSTALL_SHADOW 2
513
#define WFRM_PACK_FRM 4
514
#define WFRM_KEEP_SHARE 8
516
bool close_cached_tables(THD *thd, TableList *tables, bool have_lock,
517
bool wait_for_refresh, bool wait_for_placeholders);
518
bool close_cached_connection_tables(THD *thd, bool wait_for_refresh,
519
LEX_STRING *connect_string,
520
bool have_lock= false);
521
void copy_field_from_tmp_record(Field *field,int offset);
522
bool fill_record(THD * thd, List<Item> &fields, List<Item> &values, bool ignore_errors);
523
bool fill_record(THD *thd, Field **field, List<Item> &values, bool ignore_errors);
524
OPEN_TableList *list_open_tables(THD *thd, const char *db, const char *wild);
526
inline TableList *find_table_in_global_list(TableList *table,
528
const char *table_name)
530
return find_table_in_list(table, &TableList::next_global,
531
db_name, table_name);
534
inline TableList *find_table_in_local_list(TableList *table,
536
const char *table_name)
538
return find_table_in_list(table, &TableList::next_local,
539
db_name, table_name);
544
bool eval_const_cond(COND *cond);
547
int mysql_load(THD *thd, sql_exchange *ex, TableList *table_list,
548
List<Item> &fields_vars, List<Item> &set_fields,
549
List<Item> &set_values_list,
550
enum enum_duplicates handle_duplicates, bool ignore,
552
int write_record(THD *thd, Table *table, COPY_INFO *info);
556
void print_where(COND *cond,const char *info, enum_query_type query_type);
557
void print_cached_tables(void);
558
void TEST_filesort(SORT_FIELD *sortorder,uint32_t s_length);
559
void print_plan(JOIN* join,uint32_t idx, double record_count, double read_time,
560
double current_read_time, const char *info);
561
void print_keyuse_array(DYNAMIC_ARRAY *keyuse_array);
562
void dump_TableList_graph(SELECT_LEX *select_lex, TableList* tl);
563
void mysql_print_status();
566
int find_ref_key(KEY *key, uint32_t key_count, unsigned char *record, Field *field,
567
uint32_t *key_length, uint32_t *keypart);
568
void key_copy(unsigned char *to_key, unsigned char *from_record, KEY *key_info, uint32_t key_length);
569
void key_restore(unsigned char *to_record, unsigned char *from_key, KEY *key_info,
570
uint16_t key_length);
571
void key_zero_nulls(unsigned char *tuple, KEY *key_info);
572
bool key_cmp_if_same(Table *form,const unsigned char *key,uint32_t index,uint32_t key_length);
573
void key_unpack(String *to,Table *form,uint32_t index);
574
bool is_key_used(Table *table, uint32_t idx, const MY_BITMAP *fields);
575
int key_cmp(KEY_PART_INFO *key_part, const unsigned char *key, uint32_t key_length);
576
extern "C" int key_rec_cmp(void *key_info, unsigned char *a, unsigned char *b);
578
bool init_errmessage(void);
579
File open_binlog(IO_CACHE *log, const char *log_file_name,
580
const char **errmsg);
583
extern void MYSQLerror(const char*);
584
void refresh_status(THD *thd);
585
bool mysql_rm_tmp_tables(void);
586
void handle_connection_in_main_thread(THD *thd);
587
void create_thread_to_handle_connection(THD *thd);
588
void unlink_thd(THD *thd);
589
bool one_thread_per_connection_end(THD *thd, bool put_in_cache);
590
void flush_thread_cache();
593
extern bool check_reserved_words(LEX_STRING *name);
594
extern enum_field_types agg_field_type(Item **items, uint32_t nitems);
597
uint64_t find_set(TYPELIB *lib, const char *x, uint32_t length, const CHARSET_INFO * const cs,
598
char **err_pos, uint32_t *err_len, bool *set_warning);
599
uint32_t find_type(const TYPELIB *lib, const char *find, uint32_t length,
601
uint32_t find_type2(const TYPELIB *lib, const char *find, uint32_t length,
602
const CHARSET_INFO *cs);
603
void unhex_type2(TYPELIB *lib);
604
uint32_t check_word(TYPELIB *lib, const char *val, const char *end,
605
const char **end_of_word);
606
int find_string_in_array(LEX_STRING * const haystack, LEX_STRING * const needle,
607
const CHARSET_INFO * const cs);
610
bool is_keyword(const char *name, uint32_t len);
612
#define MY_DB_OPT_FILE "db.opt"
613
bool my_database_names_init(void);
614
void my_database_names_free(void);
615
bool check_db_dir_existence(const char *db_name);
616
bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create);
617
bool load_db_opt_by_name(THD *thd, const char *db_name,
618
HA_CREATE_INFO *db_create_info);
619
const CHARSET_INFO *get_default_db_collation(THD *thd, const char *db_name);
620
bool my_dbopt_init(void);
621
void my_dbopt_cleanup(void);
622
extern int creating_database; // How many database locks are made
623
extern int creating_table; // How many mysql_create_table() are running
629
extern time_t server_start_time, flush_status_time;
630
extern char *opt_mysql_tmpdir;
632
#define mysql_tmpdir (my_tmpdir(&mysql_tmpdir_list))
633
extern MY_TMPDIR mysql_tmpdir_list;
634
extern const LEX_STRING command_name[];
635
extern const char *first_keyword, *my_localhost, *delayed_user, *binary_keyword;
636
extern const char *myisam_recover_options_str;
637
extern const char *in_left_expr_name, *in_additional_cond, *in_having_cond;
638
extern const char * const TRG_EXT;
639
extern const char * const TRN_EXT;
640
extern Eq_creator eq_creator;
641
extern Ne_creator ne_creator;
642
extern Gt_creator gt_creator;
643
extern Lt_creator lt_creator;
644
extern Ge_creator ge_creator;
645
extern Le_creator le_creator;
646
extern char language[FN_REFLEN];
647
extern char glob_hostname[FN_REFLEN], mysql_home[FN_REFLEN];
648
extern char pidfile_name[FN_REFLEN], system_time_zone[30], *opt_init_file;
649
extern char log_error_file[FN_REFLEN], *opt_tc_log_file;
650
extern const double log_10[309];
651
extern uint64_t log_10_int[20];
652
extern uint64_t keybuff_size;
653
extern uint64_t thd_startup_options;
654
extern ulong thread_id;
655
extern ulong binlog_cache_use, binlog_cache_disk_use;
656
extern ulong aborted_threads,aborted_connects;
657
extern ulong slave_open_temp_tables;
658
extern ulong slow_launch_threads, slow_launch_time;
659
extern ulong table_cache_size, table_def_size;
660
extern ulong max_connections,max_connect_errors, connect_timeout;
661
extern bool slave_allow_batching;
662
extern ulong slave_net_timeout, slave_trans_retries;
663
extern uint32_t max_user_connections;
664
extern ulong what_to_log,flush_time;
665
extern ulong binlog_cache_size, max_binlog_cache_size, open_files_limit;
666
extern ulong max_binlog_size, max_relay_log_size;
667
extern ulong opt_binlog_rows_event_max_size;
668
extern ulong rpl_recovery_rank, thread_cache_size, thread_pool_size;
669
extern ulong back_log;
670
extern ulong current_pid;
671
extern ulong expire_logs_days, sync_binlog_period, sync_binlog_counter;
672
extern ulong opt_tc_log_size, tc_log_max_pages_used, tc_log_page_size;
673
extern ulong tc_log_page_waits;
674
extern bool relay_log_purge;
675
extern bool opt_innodb_safe_binlog, opt_innodb;
676
extern uint32_t test_flags,select_errors,ha_open_options;
677
extern uint32_t protocol_version, mysqld_port, dropping_tables;
678
extern uint32_t delay_key_write_options;
679
extern bool opt_endinfo, using_udf_functions;
680
extern bool locked_in_memory;
681
extern bool opt_using_transactions;
682
extern bool using_update_log, server_id_supplied;
683
extern bool opt_update_log, opt_bin_log, opt_error_log;
685
extern bool opt_slow_log;
686
extern ulong log_output_options;
687
extern bool opt_log_queries_not_using_indexes;
688
extern bool opt_character_set_client_handshake;
689
extern bool volatile abort_loop, shutdown_in_progress;
690
extern uint32_t volatile thread_count, thread_running, global_read_lock;
691
extern uint32_t connection_count;
692
extern bool opt_sql_bin_update;
693
extern bool opt_safe_user_create;
694
extern bool opt_no_mix_types;
695
extern bool opt_safe_show_db, opt_myisam_use_mmap;
696
extern bool opt_local_infile;
697
extern bool opt_slave_compressed_protocol;
698
extern bool use_temp_pool;
699
extern ulong slave_exec_mode_options;
700
extern bool opt_readonly;
701
extern bool opt_secure_auth;
702
extern char* opt_secure_file_priv;
703
extern bool opt_log_slow_admin_statements;
704
extern bool opt_log_slow_slave_statements;
705
extern bool opt_noacl;
706
extern bool opt_old_style_user_limits;
707
extern uint32_t opt_crash_binlog_innodb;
708
extern char *default_tz_name;
709
extern char *opt_logname, *opt_slow_logname;
710
extern const char *log_output_str;
712
extern DRIZZLE_BIN_LOG mysql_bin_log;
713
extern LOGGER logger;
714
extern TableList general_log, slow_log;
715
extern FILE *stderror_file;
716
extern pthread_key(MEM_ROOT**,THR_MALLOC);
717
extern pthread_mutex_t LOCK_mysql_create_db,LOCK_open, LOCK_lock_db,
718
LOCK_thread_count,LOCK_user_locks, LOCK_status,
719
LOCK_error_log, LOCK_uuid_generator,
720
LOCK_crypt, LOCK_timezone,
721
LOCK_slave_list, LOCK_active_mi, LOCK_global_read_lock,
722
LOCK_global_system_variables, LOCK_user_conn,
723
LOCK_bytes_sent, LOCK_bytes_received, LOCK_connection_count;
724
extern pthread_mutex_t LOCK_server_started;
725
extern rw_lock_t LOCK_sys_init_connect, LOCK_sys_init_slave;
726
extern rw_lock_t LOCK_system_variables_hash;
727
extern pthread_cond_t COND_refresh, COND_thread_count, COND_manager;
728
extern pthread_cond_t COND_global_read_lock;
729
extern pthread_attr_t connection_attrib;
730
extern I_List<THD> threads;
731
extern I_List<NAMED_LIST> key_caches;
732
extern MY_BITMAP temp_pool;
733
extern String my_empty_string;
734
extern const String my_null_string;
735
extern SHOW_VAR status_vars[];
736
extern struct system_variables max_system_variables;
737
extern struct system_status_var global_status_var;
738
extern struct rand_struct sql_rand;
740
extern const char *opt_date_time_formats[];
741
extern KNOWN_DATE_TIME_FORMAT known_date_time_formats[];
743
extern HASH open_cache, lock_db_cache;
744
extern Table *unused_tables;
745
extern const char* any_db;
746
extern struct my_option my_long_options[];
747
extern const LEX_STRING view_type;
748
extern scheduler_functions thread_scheduler;
749
extern TYPELIB thread_handling_typelib;
750
extern uint8_t uc_update_queries[SQLCOM_END+1];
751
extern uint32_t sql_command_flags[];
752
extern TYPELIB log_output_typelib;
754
/* optional things, have_* variables */
755
extern SHOW_COMP_OPTION have_community_features;
757
extern handlerton *myisam_hton;
758
extern handlerton *heap_hton;
760
extern SHOW_COMP_OPTION have_symlink;
761
extern SHOW_COMP_OPTION have_compress;
764
extern pthread_t signal_thread;
766
DRIZZLE_LOCK *mysql_lock_tables(THD *thd, Table **table, uint32_t count,
767
uint32_t flags, bool *need_reopen);
768
/* mysql_lock_tables() and open_table() flags bits */
769
#define DRIZZLE_LOCK_IGNORE_GLOBAL_READ_LOCK 0x0001
770
#define DRIZZLE_LOCK_IGNORE_FLUSH 0x0002
771
#define DRIZZLE_LOCK_NOTIFY_IF_NEED_REOPEN 0x0004
772
#define DRIZZLE_OPEN_TEMPORARY_ONLY 0x0008
773
#define DRIZZLE_LOCK_IGNORE_GLOBAL_READ_ONLY 0x0010
774
#define DRIZZLE_LOCK_PERF_SCHEMA 0x0020
776
void mysql_unlock_tables(THD *thd, DRIZZLE_LOCK *sql_lock);
777
void mysql_unlock_read_tables(THD *thd, DRIZZLE_LOCK *sql_lock);
778
void mysql_unlock_some_tables(THD *thd, Table **table,uint32_t count);
779
void mysql_lock_remove(THD *thd, DRIZZLE_LOCK *locked,Table *table,
781
void mysql_lock_abort(THD *thd, Table *table, bool upgrade_lock);
782
void mysql_lock_downgrade_write(THD *thd, Table *table,
783
thr_lock_type new_lock_type);
784
bool mysql_lock_abort_for_thread(THD *thd, Table *table);
785
DRIZZLE_LOCK *mysql_lock_merge(DRIZZLE_LOCK *a,DRIZZLE_LOCK *b);
786
TableList *mysql_lock_have_duplicate(THD *thd, TableList *needle,
787
TableList *haystack);
788
bool lock_global_read_lock(THD *thd);
789
void unlock_global_read_lock(THD *thd);
790
bool wait_if_global_read_lock(THD *thd, bool abort_on_refresh,
792
void start_waiting_global_read_lock(THD *thd);
793
bool make_global_read_lock_block_commit(THD *thd);
794
bool set_protect_against_global_read_lock(void);
795
void unset_protect_against_global_read_lock(void);
796
void broadcast_refresh(void);
797
int try_transactional_lock(THD *thd, TableList *table_list);
798
int check_transactional_lock(THD *thd, TableList *table_list);
799
int set_handler_table_locks(THD *thd, TableList *table_list,
802
/* Lock based on name */
803
int lock_and_wait_for_table_name(THD *thd, TableList *table_list);
804
int lock_table_name(THD *thd, TableList *table_list, bool check_in_use);
805
void unlock_table_name(THD *thd, TableList *table_list);
806
bool wait_for_locked_table_names(THD *thd, TableList *table_list);
807
bool lock_table_names(THD *thd, TableList *table_list);
808
void unlock_table_names(THD *thd, TableList *table_list,
809
TableList *last_table);
810
bool lock_table_names_exclusively(THD *thd, TableList *table_list);
811
bool is_table_name_exclusively_locked_by_this_thread(THD *thd,
812
TableList *table_list);
813
bool is_table_name_exclusively_locked_by_this_thread(THD *thd, unsigned char *key,
817
/* old unireg functions */
819
void unireg_init(ulong options);
820
void unireg_end(void) __attribute__((noreturn));
821
bool mysql_create_frm(THD *thd, const char *file_name,
822
const char *db, const char *table,
823
HA_CREATE_INFO *create_info,
824
List<Create_field> &create_field,
825
uint32_t key_count,KEY *key_info,handler *db_type);
826
int rea_create_table(THD *thd, const char *path,
827
const char *db, const char *table_name,
828
HA_CREATE_INFO *create_info,
829
List<Create_field> &create_field,
830
uint32_t key_count,KEY *key_info,
832
int format_number(uint32_t inputflag,uint32_t max_length,char * pos,uint32_t length,
836
TABLE_SHARE *alloc_table_share(TableList *table_list, char *key,
837
uint32_t key_length);
838
void init_tmp_table_share(THD *thd, TABLE_SHARE *share, const char *key,
840
const char *table_name, const char *path);
841
void free_table_share(TABLE_SHARE *share);
842
int open_table_def(THD *thd, TABLE_SHARE *share, uint32_t db_flags);
843
void open_table_error(TABLE_SHARE *share, int error, int db_errno, int errarg);
844
int open_table_from_share(THD *thd, TABLE_SHARE *share, const char *alias,
845
uint32_t db_stat, uint32_t prgflag, uint32_t ha_open_flags,
846
Table *outparam, open_table_mode open_mode);
847
int readfrm(const char *name, unsigned char **data, size_t *length);
848
int writefrm(const char* name, const unsigned char* data, size_t len);
849
int closefrm(Table *table, bool free_share);
850
int read_string(File file, unsigned char* *to, size_t length);
851
void free_blobs(Table *table);
852
int set_zone(int nr,int min_zone,int max_zone);
853
ulong convert_period_to_month(ulong period);
854
ulong convert_month_to_period(ulong month);
855
void get_date_from_daynr(long daynr,uint32_t *year, uint32_t *month,
857
my_time_t TIME_to_timestamp(THD *thd, const DRIZZLE_TIME *t, bool *not_exist);
858
bool str_to_time_with_warn(const char *str,uint32_t length,DRIZZLE_TIME *l_time);
859
enum enum_drizzle_timestamp_type str_to_datetime_with_warn(const char *str, uint32_t length,
860
DRIZZLE_TIME *l_time, uint32_t flags);
861
void localtime_to_TIME(DRIZZLE_TIME *to, struct tm *from);
862
void calc_time_from_sec(DRIZZLE_TIME *to, long seconds, long microseconds);
864
void make_truncated_value_warning(THD *thd, DRIZZLE_ERROR::enum_warning_level level,
866
uint32_t str_length, enum enum_drizzle_timestamp_type time_type,
867
const char *field_name);
869
bool date_add_interval(DRIZZLE_TIME *ltime, interval_type int_type, INTERVAL interval);
870
bool calc_time_diff(DRIZZLE_TIME *l_time1, DRIZZLE_TIME *l_time2, int l_sign,
871
int64_t *seconds_out, long *microseconds_out);
873
extern LEX_STRING interval_type_to_name[];
875
extern DATE_TIME_FORMAT *date_time_format_make(enum enum_drizzle_timestamp_type format_type,
876
const char *format_str,
877
uint32_t format_length);
878
extern DATE_TIME_FORMAT *date_time_format_copy(THD *thd,
879
DATE_TIME_FORMAT *format);
880
const char *get_date_time_format_str(KNOWN_DATE_TIME_FORMAT *format,
881
enum enum_drizzle_timestamp_type type);
882
extern bool make_date_time(DATE_TIME_FORMAT *format, DRIZZLE_TIME *l_time,
883
enum enum_drizzle_timestamp_type type, String *str);
884
void make_datetime(const DATE_TIME_FORMAT *format, const DRIZZLE_TIME *l_time,
886
void make_date(const DATE_TIME_FORMAT *format, const DRIZZLE_TIME *l_time,
888
void make_time(const DATE_TIME_FORMAT *format, const DRIZZLE_TIME *l_time,
890
int my_time_compare(DRIZZLE_TIME *a, DRIZZLE_TIME *b);
891
uint64_t get_datetime_value(THD *thd, Item ***item_arg, Item **cache_arg,
892
Item *warn_item, bool *is_null);
894
int test_if_number(char *str,int *res,bool allow_wildcards);
895
void change_byte(unsigned char *,uint,char,char);
896
void init_read_record(READ_RECORD *info, THD *thd, Table *reg_form,
898
int use_record_cache, bool print_errors);
899
void init_read_record_idx(READ_RECORD *info, THD *thd, Table *table,
900
bool print_error, uint32_t idx);
901
void end_read_record(READ_RECORD *info);
902
ha_rows filesort(THD *thd, Table *form,struct st_sort_field *sortorder,
903
uint32_t s_length, SQL_SELECT *select,
904
ha_rows max_rows, bool sort_positions,
905
ha_rows *examined_rows);
906
void filesort_free_buffers(Table *table, bool full);
907
void change_double_for_sort(double nr,unsigned char *to);
908
double my_double_round(double value, int64_t dec, bool dec_unsigned,
910
int get_quick_record(SQL_SELECT *select);
912
int calc_weekday(long daynr,bool sunday_first_day_of_week);
913
uint32_t calc_week(DRIZZLE_TIME *l_time, uint32_t week_behaviour, uint32_t *year);
914
void find_date(char *pos,uint32_t *vek,uint32_t flag);
915
TYPELIB *convert_strings_to_array_type(char * *typelibs, char * *end);
916
TYPELIB *typelib(MEM_ROOT *mem_root, List<String> &strings);
917
ulong get_form_pos(File file, unsigned char *head, TYPELIB *save_names);
918
ulong make_new_entry(File file,unsigned char *fileinfo,TYPELIB *formnames,
919
const char *newname);
920
ulong next_io_size(ulong pos);
921
void append_unescaped(String *res, const char *pos, uint32_t length);
922
int create_frm(THD *thd, const char *name, const char *db, const char *table,
923
uint32_t reclength, unsigned char *fileinfo,
924
HA_CREATE_INFO *create_info, uint32_t keys, KEY *key_info);
925
int rename_file_ext(const char * from,const char * to,const char * ext);
926
bool check_db_name(LEX_STRING *db);
927
bool check_column_name(const char *name);
928
bool check_table_name(const char *name, uint32_t length);
929
char *get_field(MEM_ROOT *mem, Field *field);
930
bool get_field(MEM_ROOT *mem, Field *field, class String *res);
931
char *fn_rext(char *name);
933
/* Conversion functions */
934
uint32_t build_table_filename(char *buff, size_t bufflen, const char *db,
935
const char *table, const char *ext, uint32_t flags);
937
#define MYSQL50_TABLE_NAME_PREFIX "#mysql50#"
938
#define MYSQL50_TABLE_NAME_PREFIX_LENGTH 9
940
/* Flags for conversion functions. */
941
#define FN_FROM_IS_TMP (1 << 0)
942
#define FN_TO_IS_TMP (1 << 1)
943
#define FN_IS_TMP (FN_FROM_IS_TMP | FN_TO_IS_TMP)
944
#define NO_FRM_RENAME (1 << 2)
947
Item *get_system_var(THD *thd, enum_var_type var_type, LEX_STRING name,
948
LEX_STRING component);
949
int get_var_with_binlog(THD *thd, enum_sql_command sql_command,
950
LEX_STRING &name, user_var_entry **out_entry);
952
bool flush_error_log(void);
955
void free_list(I_List <i_string_pair> *list);
956
void free_list(I_List <i_string> *list);
958
/* Some inline functions for more speed */
960
inline bool add_item_to_list(THD *thd, Item *item)
962
return thd->lex->current_select->add_item_to_list(thd, item);
965
inline bool add_value_to_list(THD *thd, Item *value)
967
return thd->lex->value_list.push_back(value);
970
inline bool add_order_to_list(THD *thd, Item *item, bool asc)
972
return thd->lex->current_select->add_order_to_list(thd, item, asc);
975
inline bool add_group_to_list(THD *thd, Item *item, bool asc)
977
return thd->lex->current_select->add_group_to_list(thd, item, asc);
980
inline void mark_as_null_row(Table *table)
983
table->status|=STATUS_NULL_ROW;
984
memset(table->null_flags, 255, table->s->null_bytes);
987
inline void table_case_convert(char * name, uint32_t length)
989
if (lower_case_table_names)
990
files_charset_info->cset->casedn(files_charset_info,
991
name, length, name, length);
994
inline const char *table_case_name(HA_CREATE_INFO *info, const char *name)
996
return ((lower_case_table_names == 2 && info->alias) ? info->alias : name);
999
inline ulong sql_rnd()
1001
ulong tmp= (ulong) (rand() * 0xffffffff); /* make all bits random */
1006
Comp_creator *comp_eq_creator(bool invert);
1007
Comp_creator *comp_ge_creator(bool invert);
1008
Comp_creator *comp_gt_creator(bool invert);
1009
Comp_creator *comp_le_creator(bool invert);
1010
Comp_creator *comp_lt_creator(bool invert);
1011
Comp_creator *comp_ne_creator(bool invert);
1013
Item * all_any_subquery_creator(Item *left_expr,
1014
chooser_compare_func_creator cmp,
1016
SELECT_LEX *select_lex);
1019
clean/setup table fields and map.
1021
@param table Table structure pointer (which should be setup)
1022
@param table_list TableList structure pointer (owner of Table)
1023
@param tablenr table number
1025
inline void setup_table_map(Table *table, TableList *table_list, uint32_t tablenr)
1027
table->used_fields= 0;
1028
table->const_table= 0;
1030
table->status= STATUS_NO_RECORD;
1031
table->maybe_null= table_list->outer_join;
1032
TableList *embedding= table_list->embedding;
1033
while (!table->maybe_null && embedding)
1035
table->maybe_null= embedding->outer_join;
1036
embedding= embedding->embedding;
1038
table->tablenr= tablenr;
1039
table->map= (table_map) 1 << tablenr;
1040
table->force_index= table_list->force_index;
1041
table->covering_keys= table->s->keys_for_keyread;
1042
table->merge_keys.clear_all();
1045
#include <drizzled/item_create.h> /* Factory API for creating Item_* instances */
1048
convert a hex digit into number.
1051
inline int hexchar_to_int(char c)
1053
if (c <= '9' && c >= '0')
1056
if (c <= 'f' && c >= 'a')
1062
return true if the table was created explicitly.
1064
inline bool is_user_table(Table * table)
1066
const char *name= table->s->table_name.str;
1067
return strncmp(name, tmp_file_prefix, tmp_file_prefix_length);
1073
This will be slightly slower and perhaps a tiny bit less accurate than
1074
doing it the IEEE754 way but log2() should be available on C99 systems.
1076
static inline double log2(double x)
1078
return (log(x) / M_LN2);
1084
Some functions that are different in the embedded library and the normal
1088
extern "C" void unireg_abort(int exit_code) __attribute__((noreturn));
1089
void kill_delayed_threads(void);
1090
bool check_stack_overrun(THD *thd, long margin, unsigned char *dummy);
1093
* Used by handlers to store things in schema tables
1095
* @TODO These should be placed in an information_schema.h header
1096
* file once the new information schema design is finalized.
1098
#define IS_FILES_FILE_ID 0
1099
#define IS_FILES_FILE_NAME 1
1100
#define IS_FILES_FILE_TYPE 2
1101
#define IS_FILES_TABLESPACE_NAME 3
1102
#define IS_FILES_TABLE_CATALOG 4
1103
#define IS_FILES_TABLE_SCHEMA 5
1104
#define IS_FILES_TABLE_NAME 6
1105
#define IS_FILES_LOGFILE_GROUP_NAME 7
1106
#define IS_FILES_LOGFILE_GROUP_NUMBER 8
1107
#define IS_FILES_ENGINE 9
1108
#define IS_FILES_FULLTEXT_KEYS 10
1109
#define IS_FILES_DELETED_ROWS 11
1110
#define IS_FILES_UPDATE_COUNT 12
1111
#define IS_FILES_FREE_EXTENTS 13
1112
#define IS_FILES_TOTAL_EXTENTS 14
1113
#define IS_FILES_EXTENT_SIZE 15
1114
#define IS_FILES_INITIAL_SIZE 16
1115
#define IS_FILES_MAXIMUM_SIZE 17
1116
#define IS_FILES_AUTOEXTEND_SIZE 18
1117
#define IS_FILES_CREATION_TIME 19
1118
#define IS_FILES_LAST_UPDATE_TIME 20
1119
#define IS_FILES_LAST_ACCESS_TIME 21
1120
#define IS_FILES_RECOVER_TIME 22
1121
#define IS_FILES_TRANSACTION_COUNTER 23
1122
#define IS_FILES_VERSION 24
1123
#define IS_FILES_ROW_FORMAT 25
1124
#define IS_FILES_TABLE_ROWS 26
1125
#define IS_FILES_AVG_ROW_LENGTH 27
1126
#define IS_FILES_DATA_LENGTH 28
1127
#define IS_FILES_MAX_DATA_LENGTH 29
1128
#define IS_FILES_INDEX_LENGTH 30
1129
#define IS_FILES_DATA_FREE 31
1130
#define IS_FILES_CREATE_TIME 32
1131
#define IS_FILES_UPDATE_TIME 33
1132
#define IS_FILES_CHECK_TIME 34
1133
#define IS_FILES_CHECKSUM 35
1134
#define IS_FILES_STATUS 36
1135
#define IS_FILES_EXTRA 37
1137
#endif /* DRIZZLE_SERVER_SERVER_INCLUDES_H */