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a7e352b54d
This was done in, among other things: - thd->db and thd->db_length - TABLE_LIST tablename, db, alias and schema_name - Audit plugin database name - lex->db - All db and table names in Alter_table_ctx - st_select_lex db Other things: - Changed a lot of functions to take const LEX_CSTRING* as argument for db, table_name and alias. See init_one_table() as an example. - Changed some function arguments from LEX_CSTRING to const LEX_CSTRING - Changed some lists from LEX_STRING to LEX_CSTRING - threads_mysql.result changed because process list_db wasn't always correctly updated - New append_identifier() function that takes LEX_CSTRING* as arguments - Added new element tmp_buff to Alter_table_ctx to separate temp name handling from temporary space - Ensure we store the length after my_casedn_str() of table/db names - Removed not used version of rename_table_in_stat_tables() - Changed Natural_join_column::table_name and db_name() to never return NULL (used for print) - thd->get_db() now returns db as a printable string (thd->db.str or "")
84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
#ifndef SQL_HANDLER_INCLUDED
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#define SQL_HANDLER_INCLUDED
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/* Copyright (c) 2006, 2015, Oracle and/or its affiliates.
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Copyright (C) 2010, 2015, MariaDB
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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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#ifdef USE_PRAGMA_INTERFACE
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#pragma interface /* gcc class implementation */
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#endif
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#include "sql_class.h" /* enum_ha_read_mode */
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#include "my_base.h" /* ha_rkey_function, ha_rows */
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#include "sql_list.h" /* List */
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/* Open handlers are stored here */
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class SQL_HANDLER {
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public:
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TABLE *table;
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List<Item> fields; /* Fields, set on open */
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THD *thd;
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LEX_CSTRING handler_name;
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LEX_CSTRING db;
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LEX_CSTRING table_name;
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MEM_ROOT mem_root;
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MYSQL_LOCK *lock;
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MDL_request mdl_request;
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key_part_map keypart_map;
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int keyno; /* Used key */
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uint key_len;
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enum enum_ha_read_modes mode;
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/* This is only used when deleting many handler objects */
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SQL_HANDLER *next;
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Query_arena arena;
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char *base_data;
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SQL_HANDLER(THD *thd_arg) :
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thd(thd_arg), arena(&mem_root, Query_arena::STMT_INITIALIZED)
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{ init(); clear_alloc_root(&mem_root); base_data= 0; }
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void init()
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{
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keyno= -1;
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table= 0;
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lock= 0;
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mdl_request.ticket= 0;
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}
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void reset();
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~SQL_HANDLER();
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};
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class THD;
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struct TABLE_LIST;
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bool mysql_ha_open(THD *thd, TABLE_LIST *tables, SQL_HANDLER *reopen);
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bool mysql_ha_close(THD *thd, TABLE_LIST *tables);
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bool mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes, const 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_flush_tables(THD *thd, TABLE_LIST *all_tables);
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void mysql_ha_rm_tables(THD *thd, TABLE_LIST *tables);
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void mysql_ha_cleanup(THD *thd);
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void mysql_ha_set_explicit_lock_duration(THD *thd);
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void mysql_ha_rm_temporary_tables(THD *thd);
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SQL_HANDLER *mysql_ha_read_prepare(THD *thd, TABLE_LIST *tables,
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enum enum_ha_read_modes mode,
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const char *keyname,
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List<Item> *key_expr, Item *cond);
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#endif
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