mariadb/sql/item_subselect.h

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simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
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/* Copyright (C) 2000 MySQL AB
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; either version 2 of the License, or
(at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* subselect Item */
BUG#10241 cygwin port: invalid pragma interface directives - Introduce ifdefs so we can control when to use #pragma interface on cygwin include/my_global.h: Turn on use of #pragma implementation and #pragma interface if compiled with GCC and platform != Cygwin include/raid.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/examples/ha_archive.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/examples/ha_example.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/field.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_berkeley.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_blackhole.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_heap.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_innodb.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_isam.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_isammrg.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_myisam.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_myisammrg.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/ha_ndbcluster.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/handler.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/item.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/item_cmpfunc.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/item_func.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/item_geofunc.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/item_strfunc.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/item_subselect.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/item_sum.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/item_timefunc.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/opt_range.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/procedure.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/protocol.h: replace __GNUC__ with USE_PRAGMA_IMPLEMENTATION sql/set_var.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/sql_class.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/sql_list.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/sql_select.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/sql_string.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/sql_udf.h: replace __GNUC__ with USE_PRAGMA_INTERFACE sql/tztime.h: replace __GNUC__ with USE_PRAGMA_INTERFACE
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#ifdef USE_PRAGMA_INTERFACE
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
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#pragma interface /* gcc class implementation */
#endif
class st_select_lex;
class st_select_lex_unit;
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
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class JOIN;
class select_subselect;
class subselect_engine;
class Item_bool_func2;
/* base class for subselects */
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
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class Item_subselect :public Item_result_field
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
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{
my_bool value_assigned; /* value already assigned to subselect */
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
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protected:
/* thread handler, will be assigned in fix_fields only */
THD *thd;
fixed * without tables in IN bug fixed sunction-test select in IN bug fixed unions in subselect bug include/mysqld_error.h: new warning mysql-test/r/subselect.result: test of * without tables in IN test of sunction-test select in IN test of unions in subselect mysql-test/t/subselect.test: test of * without tables in IN test of sunction-test select in IN test of unions in subselect sql/item.cc: fixed * substitution without tables sql/item_subselect.cc: fixed subselect rewriting with function-test subselect sql/item_subselect.h: mechanism for subselect removing sql/share/czech/errmsg.txt: new warning sql/share/danish/errmsg.txt: new warning sql/share/dutch/errmsg.txt: new warning sql/share/english/errmsg.txt: new warning sql/share/estonian/errmsg.txt: new warning sql/share/french/errmsg.txt: new warning sql/share/german/errmsg.txt: new warning sql/share/greek/errmsg.txt: new warning sql/share/hungarian/errmsg.txt: new warning sql/share/italian/errmsg.txt: new warning sql/share/japanese/errmsg.txt: new warning sql/share/korean/errmsg.txt: new warning sql/share/norwegian-ny/errmsg.txt: new warning sql/share/norwegian/errmsg.txt: new warning sql/share/polish/errmsg.txt: new warning sql/share/portuguese/errmsg.txt: new warning sql/share/romanian/errmsg.txt: new warning sql/share/russian/errmsg.txt: new warning sql/share/serbian/errmsg.txt: new warning sql/share/slovak/errmsg.txt: new warning sql/share/spanish/errmsg.txt: new warning sql/share/swedish/errmsg.txt: new warning sql/share/ukrainian/errmsg.txt: new warning sql/sql_base.cc: fixed case on no name field in UNION subselect sql/sql_lex.cc: mechanisp of removing single subselect for optimisation purposes sql/sql_lex.h: mechanisp of removing single subselect for optimisation purposes sql/sql_parse.cc: error handling sql/sql_union.cc: fixed unions in subselect sql/sql_yacc.yy: fixed Lex->describe flag appearence
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/* substitution instead of subselect in case of optimization */
Item *substitution;
/* unit of subquery */
st_select_lex_unit *unit;
/* engine that perform execution of subselect (single select or union) */
subselect_engine *engine;
/* old engine if engine was changed */
subselect_engine *old_engine;
/* cache of used external tables */
table_map used_tables_cache;
/* allowed number of columns (1 for single value subqueries) */
uint max_columns;
/* where subquery is placed */
enum_parsing_place parsing_place;
/* work with 'substitution' */
bool have_to_be_excluded;
/* cache of constant state */
bool const_item_cache;
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
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public:
/* changed engine indicator */
bool engine_changed;
/* subquery is transformed */
bool changed;
enum trans_res {RES_OK, RES_REDUCE, RES_ERROR};
enum subs_type {UNKNOWN_SUBS, SINGLEROW_SUBS,
EXISTS_SUBS, IN_SUBS, ALL_SUBS, ANY_SUBS};
Item_subselect();
virtual subs_type substype() { return UNKNOWN_SUBS; }
/*
We need this method, because some compilers do not allow 'this'
pointer in constructor initialization list, but we need pass pointer
to subselect Item class to select_subselect classes constructor.
*/
virtual void init (st_select_lex *select_lex,
select_subselect *result);
~Item_subselect();
void cleanup();
virtual void reset()
{
null_value= 1;
}
virtual trans_res select_transformer(JOIN *join);
bool assigned() { return value_assigned; }
void assigned(bool a) { value_assigned= a; }
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
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enum Type type() const;
bool is_null()
{
val_int();
return null_value;
}
Name resolution context added (BUG#6443) include/my_bitmap.h: new bitmap operation mysql-test/r/view.result: added warnings Correct inserting data check (absence of default value) for view underlying tables (BUG#6443) mysql-test/t/view.test: Correct inserting data check (absence of default value) for view underlying tables (BUG#6443) mysys/my_bitmap.c: new bitmap operation sql/field.h: index of field in table added sql/item.cc: Name resolution context added table list removed from fix_fields() arguments sql/item.h: Name resolution context added table list removed from fix_fields() arguments sql/item_cmpfunc.cc: table list removed from fix_fields() arguments sql/item_cmpfunc.h: table list removed from fix_fields() arguments sql/item_func.cc: table list removed from fix_fields() arguments sql/item_func.h: table list removed from fix_fields() arguments sql/item_row.cc: table list removed from fix_fields() arguments sql/item_row.h: table list removed from fix_fields() arguments sql/item_strfunc.cc: fixed server crash on NULL argument sql/item_strfunc.h: table list removed from fix_fields() arguments sql/item_subselect.cc: table list removed from fix_fields() arguments sql/item_subselect.h: table list removed from fix_fields() arguments sql/item_sum.cc: table list removed from fix_fields() arguments sql/item_sum.h: table list removed from fix_fields() arguments sql/item_timefunc.cc: table list removed from fix_fields() arguments sql/item_timefunc.h: table list removed from fix_fields() arguments sql/item_uniq.h: table list removed from fix_fields() arguments sql/log_event.cc: Name resolution context added sql/log_event.h: Name resolution context added sql/mysql_priv.h: Name resolution context added sql/set_var.cc: table list removed from fix_fields() arguments sql/share/errmsg.txt: new error message sql/sp.cc: Name resolution context added sql/sp_head.cc: table list removed from fix_fields() arguments sql/sp_head.h: Name resolution context added sql/sql_base.cc: table list removed from fix_fields() arguments Name resolution context added sql/sql_class.cc: renamed variable sql/sql_delete.cc: Name resolution context added sql/sql_derived.cc: Name resolution context added sql/sql_do.cc: table list removed from fix_fields() arguments sql/sql_handler.cc: Name resolution context added sql/sql_help.cc: Name resolution context added sql/sql_insert.cc: Name resolution context added table list removed from fix_fields() arguments sql/sql_lex.cc: Name resolution context added sql/sql_lex.h: removed resolve mode (information stored into name resolution context) sql/sql_load.cc: table list removed from fix_fields() arguments sql/sql_olap.cc: Name resolution context added sql/sql_parse.cc: Name resolution context added sql/sql_prepare.cc: table list removed from fix_fields() arguments sql/sql_select.cc: table list removed from fix_fields() arguments sql/sql_show.cc: Name resolution context added sql/sql_trigger.cc: table list removed from fix_fields() arguments sql/sql_udf.h: table list removed from fix_fields() arguments sql/sql_union.cc: Name resolution context added sql/sql_update.cc: Name resolution context added sql/sql_view.cc: Name resolution context added sql/sql_view.h: table list removed from fix_fields() arguments sql/sql_yacc.yy: Name resolution context added sql/table.cc: Name resolution context added merged view processing moved sql/table.h: merged view processing moved
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bool fix_fields(THD *thd, Item **ref);
virtual bool exec();
virtual void fix_length_and_dec();
table_map used_tables() const;
table_map not_null_tables() const { return 0; }
bool const_item() const;
inline table_map get_used_tables_cache() { return used_tables_cache; }
inline bool get_const_item_cache() { return const_item_cache; }
Item *get_tmp_table_item(THD *thd);
void update_used_tables();
void print(String *str);
bool change_engine(subselect_engine *eng)
{
old_engine= engine;
engine= eng;
engine_changed= 1;
return eng == 0;
}
/*
True if this subquery has been already evaluated. Implemented only for
single select and union subqueries only.
*/
bool is_evaluated() const;
/*
Used by max/min subquery to initialize value presence registration
mechanism. Engine call this method before rexecution query.
*/
virtual void reset_value_registration() {}
enum_parsing_place place() { return parsing_place; }
This changeset is largely a handler cleanup changeset (WL#3281), but includes fixes and cleanups that was found necessary while testing the handler changes Changes that requires code changes in other code of other storage engines. (Note that all changes are very straightforward and one should find all issues by compiling a --debug build and fixing all compiler errors and all asserts in field.cc while running the test suite), - New optional handler function introduced: reset() This is called after every DML statement to make it easy for a handler to statement specific cleanups. (The only case it's not called is if force the file to be closed) - handler::extra(HA_EXTRA_RESET) is removed. Code that was there before should be moved to handler::reset() - table->read_set contains a bitmap over all columns that are needed in the query. read_row() and similar functions only needs to read these columns - table->write_set contains a bitmap over all columns that will be updated in the query. write_row() and update_row() only needs to update these columns. The above bitmaps should now be up to date in all context (including ALTER TABLE, filesort()). The handler is informed of any changes to the bitmap after fix_fields() by calling the virtual function handler::column_bitmaps_signal(). If the handler does caching of these bitmaps (instead of using table->read_set, table->write_set), it should redo the caching in this code. as the signal() may be sent several times, it's probably best to set a variable in the signal and redo the caching on read_row() / write_row() if the variable was set. - Removed the read_set and write_set bitmap objects from the handler class - Removed all column bit handling functions from the handler class. (Now one instead uses the normal bitmap functions in my_bitmap.c instead of handler dedicated bitmap functions) - field->query_id is removed. One should instead instead check table->read_set and table->write_set if a field is used in the query. - handler::extra(HA_EXTRA_RETRIVE_ALL_COLS) and handler::extra(HA_EXTRA_RETRIEVE_PRIMARY_KEY) are removed. One should now instead use table->read_set to check for which columns to retrieve. - If a handler needs to call Field->val() or Field->store() on columns that are not used in the query, one should install a temporary all-columns-used map while doing so. For this, we provide the following functions: my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->read_set); field->val(); dbug_tmp_restore_column_map(table->read_set, old_map); and similar for the write map: my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->write_set); field->val(); dbug_tmp_restore_column_map(table->write_set, old_map); If this is not done, you will sooner or later hit a DBUG_ASSERT in the field store() / val() functions. (For not DBUG binaries, the dbug_tmp_restore_column_map() and dbug_tmp_restore_column_map() are inline dummy functions and should be optimized away be the compiler). - If one needs to temporary set the column map for all binaries (and not just to avoid the DBUG_ASSERT() in the Field::store() / Field::val() methods) one should use the functions tmp_use_all_columns() and tmp_restore_column_map() instead of the above dbug_ variants. - All 'status' fields in the handler base class (like records, data_file_length etc) are now stored in a 'stats' struct. This makes it easier to know what status variables are provided by the base handler. This requires some trivial variable names in the extra() function. - New virtual function handler::records(). This is called to optimize COUNT(*) if (handler::table_flags() & HA_HAS_RECORDS()) is true. (stats.records is not supposed to be an exact value. It's only has to be 'reasonable enough' for the optimizer to be able to choose a good optimization path). - Non virtual handler::init() function added for caching of virtual constants from engine. - Removed has_transactions() virtual method. Now one should instead return HA_NO_TRANSACTIONS in table_flags() if the table handler DOES NOT support transactions. - The 'xxxx_create_handler()' function now has a MEM_ROOT_root argument that is to be used with 'new handler_name()' to allocate the handler in the right area. The xxxx_create_handler() function is also responsible for any initialization of the object before returning. For example, one should change: static handler *myisam_create_handler(TABLE_SHARE *table) { return new ha_myisam(table); } -> static handler *myisam_create_handler(TABLE_SHARE *table, MEM_ROOT *mem_root) { return new (mem_root) ha_myisam(table); } - New optional virtual function: use_hidden_primary_key(). This is called in case of an update/delete when (table_flags() and HA_PRIMARY_KEY_REQUIRED_FOR_DELETE) is defined but we don't have a primary key. This allows the handler to take precisions in remembering any hidden primary key to able to update/delete any found row. The default handler marks all columns to be read. - handler::table_flags() now returns a ulonglong (to allow for more flags). - New/changed table_flags() - HA_HAS_RECORDS Set if ::records() is supported - HA_NO_TRANSACTIONS Set if engine doesn't support transactions - HA_PRIMARY_KEY_REQUIRED_FOR_DELETE Set if we should mark all primary key columns for read when reading rows as part of a DELETE statement. If there is no primary key, all columns are marked for read. - HA_PARTIAL_COLUMN_READ Set if engine will not read all columns in some cases (based on table->read_set) - HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS Renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION. - HA_DUPP_POS Renamed to HA_DUPLICATE_POS - HA_REQUIRES_KEY_COLUMNS_FOR_DELETE Set this if we should mark ALL key columns for read when when reading rows as part of a DELETE statement. In case of an update we will mark all keys for read for which key part changed value. - HA_STATS_RECORDS_IS_EXACT Set this if stats.records is exact. (This saves us some extra records() calls when optimizing COUNT(*)) - Removed table_flags() - HA_NOT_EXACT_COUNT Now one should instead use HA_HAS_RECORDS if handler::records() gives an exact count() and HA_STATS_RECORDS_IS_EXACT if stats.records is exact. - HA_READ_RND_SAME Removed (no one supported this one) - Removed not needed functions ha_retrieve_all_cols() and ha_retrieve_all_pk() - Renamed handler::dupp_pos to handler::dup_pos - Removed not used variable handler::sortkey Upper level handler changes: - ha_reset() now does some overall checks and calls ::reset() - ha_table_flags() added. This is a cached version of table_flags(). The cache is updated on engine creation time and updated on open. MySQL level changes (not obvious from the above): - DBUG_ASSERT() added to check that column usage matches what is set in the column usage bit maps. (This found a LOT of bugs in current column marking code). - In 5.1 before, all used columns was marked in read_set and only updated columns was marked in write_set. Now we only mark columns for which we need a value in read_set. - Column bitmaps are created in open_binary_frm() and open_table_from_share(). (Before this was in table.cc) - handler::table_flags() calls are replaced with handler::ha_table_flags() - For calling field->val() you must have the corresponding bit set in table->read_set. For calling field->store() you must have the corresponding bit set in table->write_set. (There are asserts in all store()/val() functions to catch wrong usage) - thd->set_query_id is renamed to thd->mark_used_columns and instead of setting this to an integer value, this has now the values: MARK_COLUMNS_NONE, MARK_COLUMNS_READ, MARK_COLUMNS_WRITE Changed also all variables named 'set_query_id' to mark_used_columns. - In filesort() we now inform the handler of exactly which columns are needed doing the sort and choosing the rows. - The TABLE_SHARE object has a 'all_set' column bitmap one can use when one needs a column bitmap with all columns set. (This is used for table->use_all_columns() and other places) - The TABLE object has 3 column bitmaps: - def_read_set Default bitmap for columns to be read - def_write_set Default bitmap for columns to be written - tmp_set Can be used as a temporary bitmap when needed. The table object has also two pointer to bitmaps read_set and write_set that the handler should use to find out which columns are used in which way. - count() optimization now calls handler::records() instead of using handler->stats.records (if (table_flags() & HA_HAS_RECORDS) is true). - Added extra argument to Item::walk() to indicate if we should also traverse sub queries. - Added TABLE parameter to cp_buffer_from_ref() - Don't close tables created with CREATE ... SELECT but keep them in the table cache. (Faster usage of newly created tables). New interfaces: - table->clear_column_bitmaps() to initialize the bitmaps for tables at start of new statements. - table->column_bitmaps_set() to set up new column bitmaps and signal the handler about this. - table->column_bitmaps_set_no_signal() for some few cases where we need to setup new column bitmaps but don't signal the handler (as the handler has already been signaled about these before). Used for the momement only in opt_range.cc when doing ROR scans. - table->use_all_columns() to install a bitmap where all columns are marked as use in the read and the write set. - table->default_column_bitmaps() to install the normal read and write column bitmaps, but not signaling the handler about this. This is mainly used when creating TABLE instances. - table->mark_columns_needed_for_delete(), table->mark_columns_needed_for_delete() and table->mark_columns_needed_for_insert() to allow us to put additional columns in column usage maps if handler so requires. (The handler indicates what it neads in handler->table_flags()) - table->prepare_for_position() to allow us to tell handler that it needs to read primary key parts to be able to store them in future table->position() calls. (This replaces the table->file->ha_retrieve_all_pk function) - table->mark_auto_increment_column() to tell handler are going to update columns part of any auto_increment key. - table->mark_columns_used_by_index() to mark all columns that is part of an index. It will also send extra(HA_EXTRA_KEYREAD) to handler to allow it to quickly know that it only needs to read colums that are part of the key. (The handler can also use the column map for detecting this, but simpler/faster handler can just monitor the extra() call). - table->mark_columns_used_by_index_no_reset() to in addition to other columns, also mark all columns that is used by the given key. - table->restore_column_maps_after_mark_index() to restore to default column maps after a call to table->mark_columns_used_by_index(). - New item function register_field_in_read_map(), for marking used columns in table->read_map. Used by filesort() to mark all used columns - Maintain in TABLE->merge_keys set of all keys that are used in query. (Simplices some optimization loops) - Maintain Field->part_of_key_not_clustered which is like Field->part_of_key but the field in the clustered key is not assumed to be part of all index. (used in opt_range.cc for faster loops) - dbug_tmp_use_all_columns(), dbug_tmp_restore_column_map() tmp_use_all_columns() and tmp_restore_column_map() functions to temporally mark all columns as usable. The 'dbug_' version is primarily intended inside a handler when it wants to just call Field:store() & Field::val() functions, but don't need the column maps set for any other usage. (ie:: bitmap_is_set() is never called) - We can't use compare_records() to skip updates for handlers that returns a partial column set and the read_set doesn't cover all columns in the write set. The reason for this is that if we have a column marked only for write we can't in the MySQL level know if the value changed or not. The reason this worked before was that MySQL marked all to be written columns as also to be read. The new 'optimal' bitmaps exposed this 'hidden bug'. - open_table_from_share() does not anymore setup temporary MEM_ROOT object as a thread specific variable for the handler. Instead we send the to-be-used MEMROOT to get_new_handler(). (Simpler, faster code) Bugs fixed: - Column marking was not done correctly in a lot of cases. (ALTER TABLE, when using triggers, auto_increment fields etc) (Could potentially result in wrong values inserted in table handlers relying on that the old column maps or field->set_query_id was correct) Especially when it comes to triggers, there may be cases where the old code would cause lost/wrong values for NDB and/or InnoDB tables. - Split thd->options flag OPTION_STATUS_NO_TRANS_UPDATE to two flags: OPTION_STATUS_NO_TRANS_UPDATE and OPTION_KEEP_LOG. This allowed me to remove some wrong warnings about: "Some non-transactional changed tables couldn't be rolled back" - Fixed handling of INSERT .. SELECT and CREATE ... SELECT that wrongly reset (thd->options & OPTION_STATUS_NO_TRANS_UPDATE) which caused us to loose some warnings about "Some non-transactional changed tables couldn't be rolled back") - Fixed use of uninitialized memory in ha_ndbcluster.cc::delete_table() which could cause delete_table to report random failures. - Fixed core dumps for some tests when running with --debug - Added missing FN_LIBCHAR in mysql_rm_tmp_tables() (This has probably caused us to not properly remove temporary files after crash) - slow_logs was not properly initialized, which could maybe cause extra/lost entries in slow log. - If we get an duplicate row on insert, change column map to read and write all columns while retrying the operation. This is required by the definition of REPLACE and also ensures that fields that are only part of UPDATE are properly handled. This fixed a bug in NDB and REPLACE where REPLACE wrongly copied some column values from the replaced row. - For table handler that doesn't support NULL in keys, we would give an error when creating a primary key with NULL fields, even after the fields has been automaticly converted to NOT NULL. - Creating a primary key on a SPATIAL key, would fail if field was not declared as NOT NULL. Cleanups: - Removed not used condition argument to setup_tables - Removed not needed item function reset_query_id_processor(). - Field->add_index is removed. Now this is instead maintained in (field->flags & FIELD_IN_ADD_INDEX) - Field->fieldnr is removed (use field->field_index instead) - New argument to filesort() to indicate that it should return a set of row pointers (not used columns). This allowed me to remove some references to sql_command in filesort and should also enable us to return column results in some cases where we couldn't before. - Changed column bitmap handling in opt_range.cc to be aligned with TABLE bitmap, which allowed me to use bitmap functions instead of looping over all fields to create some needed bitmaps. (Faster and smaller code) - Broke up found too long lines - Moved some variable declaration at start of function for better code readability. - Removed some not used arguments from functions. (setup_fields(), mysql_prepare_insert_check_table()) - setup_fields() now takes an enum instead of an int for marking columns usage. - For internal temporary tables, use handler::write_row(), handler::delete_row() and handler::update_row() instead of handler::ha_xxxx() for faster execution. - Changed some constants to enum's and define's. - Using separate column read and write sets allows for easier checking of timestamp field was set by statement. - Remove calls to free_io_cache() as this is now done automaticly in ha_reset() - Don't build table->normalized_path as this is now identical to table->path (after bar's fixes to convert filenames) - Fixed some missed DBUG_PRINT(.."%lx") to use "0x%lx" to make it easier to do comparision with the 'convert-dbug-for-diff' tool. Things left to do in 5.1: - We wrongly log failed CREATE TABLE ... SELECT in some cases when using row based logging (as shown by testcase binlog_row_mix_innodb_myisam.result) Mats has promised to look into this. - Test that my fix for CREATE TABLE ... SELECT is indeed correct. (I added several test cases for this, but in this case it's better that someone else also tests this throughly). Lars has promosed to do this. BitKeeper/etc/ignore: added mysys/test_bitmap include/base64.h: Removed my_global.h, as this must be included first in any program include/heap.h: Added heap_reset() (Required by new handler interface) include/my_base.h: Removed HA_EXTRA_RESET. MySQL will now call ::reset() instead of ::extra(HA_EXTRA_RESET). HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIVE_PRIMARY key are deleted as the column bitmaps makes these unnecessary include/my_bitmap.h: Remove my_pthread.h (should be included at upper level) Introduced my_bitmap_map typedef to make it the bitmap handling more like a black box Added bitmap_is_overlapping(), bitmap_test_and_clear(), bitmap_copy() and bitmap_cmp() Made bitmap_set_bit(), bitmap_flip_bit(), bitmap_clear_bit() return void include/myisam.h: Added mi_reset() (Required by new handler interface) include/myisammrg.h: Added myrg_reset() (Required by new handler interface) include/mysql_com.h: Added flag FIELD_IN_ADD_INDEX to be able to remove Field->add_index mysql-test/extra/binlog_tests/mix_innodb_myisam_binlog.test: Added testing of CREATE ... SELECT in a mixed environment (This found some bugs that Mats is going to fix shortly) mysql-test/install_test_db.sh: Simplify ldata usage Added --tmpdir=. option to mysqld bootstrap (Removed some warnings when TMPDIR was wrongly set) mysql-test/mysql-test-run.pl: Added --tmpdir=. to bootstrap mysql-test/mysql-test-run.sh: Use copy instead of INSTALL_DB for master and slave databases. (Speeds up startup time a lot!) Remove snapshot directories at startup (removes some strange warnings) mysql-test/r/binlog_row_mix_innodb_myisam.result: Added testing of CREATE ... SELECT in a mixed environment (This found some bugs that Mats is going to fix shortly) mysql-test/r/binlog_stm_mix_innodb_myisam.result: Added testing of CREATE ... SELECT in a mixed environment mysql-test/r/create.result: Some extra tests of warnings and number of tables opened by CREATE ... SELECT mysql-test/r/federated.result: Drop some left over tables Added testing of multiple table update and multiple table delete (with and without keys) mysql-test/r/func_gconcat.result: Enable some disabled tests (converted them slightly to be predictable) mysql-test/r/func_time.result: Added drop of test function mysql-test/r/innodb_mysql.result: Added tests for CREATE ... SELECT mysql-test/r/insert.result: More tests Added testing of duplicate columns in insert mysql-test/r/loaddata.result: Added testing LOAD DATA ... SET ... mysql-test/r/multi_update.result: Test multi updates and deletes using primary key and without mysql-test/r/ndb_index_unique.result: Better error message mysql-test/r/ndb_replace.result: New correct result after fixing REPLACE handling with NDB mysql-test/r/rpl_ddl.result: Now we don't get these (wrong) warnings anymore mysql-test/r/view_grant.result: Drop used views mysql-test/t/create.test: Some extra tests of warnings and number of tables opened by CREATE ... SELECT mysql-test/t/federated.test: Drop some left over tables Added testing of multiple table update and multiple table delete (with and without keys) mysql-test/t/func_gconcat.test: Enable some disabled tests (converted them slightly to be predictable) mysql-test/t/func_time.test: Added drop of test function mysql-test/t/innodb_mysql.test: Added tests for CREATE ... SELECT mysql-test/t/insert.test: More tests Added testing of duplicate columns in insert mysql-test/t/loaddata.test: Added testing LOAD DATA ... SET ... mysql-test/t/multi_update.test: Test multi updates and deletes using primary key and without mysql-test/t/view_grant.test: Drop used views mysql-test/valgrind.supp: Added supression of not needed warnings when printing stack trace mysys/base64.c: Include my_global.h first mysys/my_bitmap.c: Added bitmap_is_overlapping(), bitmap_test_and_clear() and bitmap_copy() Changed logic of bitmap handling to be a bit more efficent (Did this together with Mikael Ronström) Now the 'extra, not used bits' in the bitmap are assumed to have a 'random value' and the bitmap functions are free to change them whenever needed. Changed how mutex is allocated to make 'bitmap_free()' function simpler. mysys/thr_lock.c: Added 0x before thread pointers (for easier comparison of DBUG traces) sql/event.cc: Ensure 'use_all_columns()' is used for event tables Don't print warning that event table is damaged if it doesn't exists. sql/field.cc: Added ASSERT_COLUMN_MARKED_FOR_WRITE in all store() methods and ASSERT_COLUMN_MARKED_FOR_READ in all val() methods to catch wrong setting if table->read_set and table->write_set (Rest of changes are only indentation cleanups) sql/field.h: Removed Field->query_id (replaced by table->read_set and table->write_set) Removed Field->fieldnr (use Field->field_index instead) Removed Field->add_index (Use Field->flags instead) Add Field->part_of_key_not_clustered (for usage in opt_range.cc) sql/filesort.cc: Added paramater sort_postion to filesort() to force sorting by position instead of storing all fields in the result set. This allowed me to remove checking of sql_command. Create a temporary column bitmap for fields that are used by the sorting process. Use column bitmaps instead of query_id sql/ha_berkeley.cc: Update to 'newer' table handler interface sql/ha_berkeley.h: Update to 'newer' table handler interface sql/ha_federated.cc: Update to 'newer' table handler interface Only read columns that are needed from remote server. In case of eq ranges, don't generate two conditions in the WHERE clause (this can still be optimized, but would require a bigger code change) Use 'simpler to use' XXXX_LEN' macros A bit simpler logic in ::write_row() when creating statements. In update, only include test of fields actually read. (This greatly simplifies the queries sent by the federated engine) Similar changes done for delete_row() sql/ha_federated.h: Update to 'newer' table handler interface Changed XXX_LEN macros to use sizeof(...)-1, to simplify usage in ha_federated.cc Added HA_PRIMARY_KEY_REQUIRED_FOR_DELETE to tell MySQL to read all primary key columns in case of DELETE sql/ha_heap.cc: Update to 'newer' table handler interface sql/ha_heap.h: Update to 'newer' table handler interface sql/ha_innodb.cc: Update to 'newer' table handler interface - Update innobase_create_handler() to new interface - Removed HA_NOT_EXACT_COUNT (not needed) - Renamed HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION. - Prefixed base status variables with 'stats' - Use table column bitmaps instead of ha_get_bit_in_read_set() - Added ::reset(), with code from ::extra(HA_EXTRA_RESET) - Removed HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIEVE_PRIMARY_KEY as the table->read_set and table->write_set bitmaps now are accurate sql/ha_innodb.h: Update to 'newer' table handler interface - table_flags are now ulonglong - Added reset() method - Removed not needed ha_retrieve_all_cols() and ha_retrieve_all_pk() columns. - Made build_template() a class function to be able to easier access class variables sql/ha_myisam.cc: Update to 'newer' table handler interface sql/ha_myisam.h: Update to 'newer' table handler interface sql/ha_myisammrg.cc: Update to 'newer' table handler interface sql/ha_myisammrg.h: Update to 'newer' table handler interface sql/ha_ndbcluster.cc: Update to 'newer' table handler interface Fixed use_blob_value() to be accurate In ::complemented_read() we have to check both the read and write bitmap as the old code did mark all changed columns also in the read map Correct dumping of field data with DBUG_DUMP Prefix addresses in DBUG_PRINT with 0x Fixed usage of not initialized memory Update to use field->flags & FIELD_IN_ADD_INDEX instead of field->add_index. sql/ha_ndbcluster.h: Update to 'newer' table handler interface sql/ha_ndbcluster_binlog.cc: Mark usage of all columns in ndbcluster binlog tables false -> FALSE, true -> TRUE Use table->s->all_set instead of creating a temporary bitmap. sql/ha_partition.cc: Update to 'newer' table handler interface Added memroot to initialise_partitions() and related functions to get faster memory allocation. partition_create_handler() is now responsible for initialisation of the partition object Some trivial optimizations and indentation fixes Ensure that table_flags() are up to date Removed documentation for removed HA_EXTRA flags Fixed 'strange' usage of m_file[i] in new_handlers_from_part_info()that worked in current code 'by chance' sql/ha_partition.h: Update to 'newer' table handler interface sql/handler.cc: create_xxx handler now takes MEMROOT as an argument to simplify memory allocation. Much simpler get_new_handler() (Initialization of the object is now handled by the create method for the engine) Moved all allocation of bitmap handling to the TABLE object (in table.cc) Added column_bitmaps_signal() to signal column usage changes. Changed binlog_log_row() to use the exiusting all_set bitmap in the table object. Added ha_reset() function to test that the file object is ok at end of statement and call handler::reset() Added use_hidden_primary_key() to signal handler that we we are going to read and update + delete the row and the handler should thus remember the position for the row sql/handler.h: Added HA_NO_TRANSACTIONS, HA_PARTIAL_COLUMN_READ, HA_REQUIRES_KEY_COLUMNS_FOR_DELETE,HA_PRIMARY_KEY_REQUIRED_FOR_DELETE and HA_HAS_RECORDS Removed HA_NOT_EXACT_COUNT, HA_READ_RND_SAME HA_DUPP_POS -> HA_DUPLICATE_POS HA_NOT_EXACT_COUNT replaced by HA_STATS_RECORDS_IS_EXACT, HA_HAS_RECORDS and records() HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION Added future row type 'ROW_TYPE_PAGES' Added MEM_ROOT to handlerton 'create' function Added ha_statistics, a structure for all status variable in the base handler class. Moved all status variables in the handler class into a stats structs to improve readability. ha_table_flags() is now a cached (not virtual) version of table_flags() reset() doesn't anymore call extra(HA_EXTRA_RESET) but is a function of it's own. Renamed dupp_ref to dup_ref Renamed not used handler::sortkey Moved read_set and write_set to TABLE structure handler::init() function added for cacheing of virtual constants from engine. sql/item.cc: Added register_field_in_read_map() for marking used columns in expression. This is used by filesort() for creating an optimal column bitmap while retrieving columns for sorting. Initalize value.cs_info.character_set_client to fix core dump bug with --debug set_query_id -> mark_used_columns Mark used columns in read_set OR write_set. sql/item.h: Removed reset_query_id_processor() as it's not needed anymore. Added register_field_in_read_map() Added extra argument to Item::walk() to indicate if we should also traverse sub queries. sql/item_cmpfunc.cc: Temporary mark used columns to be read/writable Update Item::walk to new interface sql/item_cmpfunc.h: Added extra argument to Item::walk() to indicate if we should also traverse sub queries. sql/item_func.cc: Update Item::walk() to new interface table_flags() -> ha_table_flags() sql/item_func.h: Update Item::walk() to new interface sql/item_row.cc: Update Item::walk() to new interface sql/item_row.h: Update Item::walk() to new interface sql/item_strfunc.h: Update Item::walk() to new interface sql/item_subselect.cc: Added Item_subselect::walk() (It was a bug it was missing before. Not sure what kind of bugs this could have caused) sql/item_subselect.h: Update Item::walk() to new interface sql/item_sum.cc: Update Item::walk() to new interface Updates for new handler interace sql/item_sum.h: Update Item::walk() to new interface sql/key.cc: Updates for new handler interace sql/log.cc: Mark all columns used for log tables Split options flag Ensured that second argument to trans_register_ha is a bool sql/log_event.cc: Fixed comments to be withing 79 characters Use OPTION_KEEP_LOG instead of OPTION_STATUS_NO_TRANS_UPDATE to remove wrong warnings Updates for new handler interface Use 0x%lx instead of %p (portability problem) sql/mysql_priv.h: Added OPTION_KEEP_LOG to indicate that we should replicate the binlog even on rollback Removed not used 'conds' argument to setup_tables sql/mysqld.cc: Indentation fixes and removed old comment sql/opt_range.cc: Update to new handler and bitmap interface. Fixed calls to cp_buffer_from_ref() and walk() (new argument). Create new temporary bitmaps for ror scans. (Needed because of handler changes and to get more accurate column bitmaps than before) Remove not needed file->ha_reset() call before file->close(). Some trivial optimization and indentation fixes. Use Field->part_of_key_not_clustered() to check if field is part of a key, instead of looping over all key parts. Added flag 'in_ror_merged_scan' to allow ::get_next() to know that we need a special column bitmap to only fetch pointer to record. This is needed because ror scan uses the same TABLE object but different file objects, which creates problem for the column bitmap handling. (This is a temporary solution. A better one would be to allocate an own TABLE object for ROR scans) Optimized bitmap handling in ror scans: - Start bitmap at position 0, not 1 - Use same bitmap size as in TABLE - Use table->read_set and table->write_set to create column bitmaps instead of looping over all fields in table sql/opt_range.h: Added 'in_ror_merged_scan' to indicate if we are doing a ROR scan Added temporary column bitmaps used in ROR scans sql/opt_sum.cc: Added get_ext_record_count() which is used in COUNT() optimization if handler has HA_HAS_RECORDS Note that we don't call this if handler has HA_STATS_RECORDS_IS_EXACT set. sql/protocol.cc: We need to mark columns as readable in ::store() as we sometimes return default value for fields to the user sql/records.cc: Updates for new handler interface sql/set_var.cc: Handle splitting OPTION_STATUS_NO_TRANS_UPDATE to two flags sql/share/errmsg.txt: Fixed wrong sql/sp.cc: Mark that we are using all columns for the proc table Update call to setup_tables() to use new prototype sql/sp_head.cc: Removed QQ comment sql/spatial.cc: Removed wrong QQ comment sql/sql_acl.cc: Mark that we need all columns for acl tables Supply memroot to some 'new' calls. Indentation fixes sql/sql_base.cc: set_query_id removed Ensure we call ha_reset() at end of each statement Mark read columns in read_set and changed columns in write_set (Before all columns was marked in read set) Fixed marking of some columns that was not proplerly marked before Maintain in TABLE->merge_keys set of all keys that are used in some way Removed not used 'conds' argument from setup_tables() Remove not used setting of 'dupp_field' in insert_fields() Added missing FN_LIBCHAR in mysql_rm_tmp_tables() (This has probably caused us to not properly remove temporary files after crash) sql/sql_bitmap.h: Added is_overlapping() sql/sql_class.cc: Slow_logs was not properly initialized, which could maybe cause extra/lost entries in slow log. set_query_id -> mark_used_columns Simpler variable usage in pack_row() (cleanup) Moved some variable declartion at start of function for better code readability sql/sql_class.h: Added enum_mark_columns Updated comments Renamed dupp_field -> dup_field Added virtual function 'can_rollback_data()' to select_insert() to be used in CREATE ... SELECT to optimize use of OPTION_STATUS_NO_TRANS_UPDATE. (This fixes a bug in CREATE ... SELECT where we did give wrong warnings when using non transacational tables) sql/sql_delete.cc: Updates to new handler interface Call table->mark_columns_needed_for_delete() to allow us to put additional columns in column usage maps if handler so requires. Call table->prepare_for_position() to tell handler that we are going to call ha_position(). Removed call to free_io_cache(). (io_cache is now removed in ha_reset()). Fixed calls to setup_tables() sql/sql_do.cc: Update call to setup_fields() sql/sql_handler.cc: Tell handler tables to always read all columns. Use temporary column map when storing value in field for later index usage sql/sql_help.cc: Makr all used fields to be read Update call to setup_fields() sql/sql_insert.cc: Tell handler we are going to update the auto_increment column dupp_field -> dup_field Set column usage bits for timestamp field. Call table->mark_columns_needed_for_insert() and table->mark_auto_increment_column() Removed not used argument from mysql_prepare_insert_check_table(). If we get an duplicate row on insert, change column map to read and write all columns while retrying the operatation. This is required by the definition of REPLACE and also ensures that fields that are only part of UPDATE are properly handled. This fixed a bug in NDB and REPLACE where REPLACE wrongly copied some column values from the replaced row. Setup new bitmaps for delayed insert rows Remove reseting of next_number_fields as it will be reset on next call to handler_insert() Fixed usage of thd->options and OPTION_STATUS_NO_TRANS_UPDATE. The issue was that one should not to reset this flag as it may be set by a previous statement. The way it was now used caused us to loose some warnings and get other wrong warnings when using non transactional tables mixed with transactional. I fixed it by introducing 'select_insert::can_rollback_data' to inform send_error() that the given statement can be rolled back (which in case of CREATE TABLE can always be done) Don't close tables created with CREATE ... SELECT but keep them in the table cache. Moved out MY_HOOKS from inside function (better readability) sql/sql_load.cc: Update to use new handler and column marking interface Update using setup_tables() sql/sql_olap.cc: Update calls to setup_tables Use enums instead of constants to setup_fields() sql/sql_parse.cc: Handle OPTION_KEEP_LOG: - Set it on CREATE TEMPORARY TABLE / DROP TABLE - Reset it when OPTION_STATUS_NO_TRANS_UPDATE is reset - Don't set it for CREATE ... SELECT (this is handled in select_create class) Remove reseting of OPTION_STATUS_NO_TRANS_UPDATE in begin_trans() as this should already be reset. If in autocommit mode, reset OPTION_KEEP_LOG and OPTION_STATUS_NO_TRANS_UPDATE to not give warnings in future commands sql/sql_partition.cc: Update walk() usage Trivial indentation fixes sql/sql_plugin.cc: Mark all columns as used for plugins sql/sql_prepare.cc: Added assert to find out hidden bugs in character_set_client (got an error in debug binary when this not set correctly) Updates for new handler interface Update calls to setup_fields() sql/sql_repl.cc: Indentation fixes sql/sql_select.cc: Update call to setup_tables() and setup_fields() Remove some old disabled code Update to new hadler interface Indentation cleanups Added column bitmaps for temporary tables. Remove updating of the removed slots in the Field class Added TABLE argument to cp_buffer_from_ref() (To be able to install temporary column maps) For internal temporary tables, use handler::write_row(), handler::delete_row() and handler::update_row() instead of handler::ha_xxxx() for faster execution. sql/sql_select.h: Indentaition fixes. Install temporary column usage maps when needed Added TABLE element to cp_buffer_from_ref() sql/sql_show.cc: Update to new handler interface Mark all columns used for internal tables. Style fixes. Added support for 'future' ROW_TYPE_PAGES. Don't allocate TMP_TABLE_PARAM with calloc. The 'init()' function will initialize the structure properly. sql/sql_table.cc: Update to new handler interface Simple my_snprintf -> strmake() Changed some constants to defines Don't test for NULL in primary key (as we a couple of line above force the PRIMARY KEY to be NOT NULL) Change field->add_index to use field->flags & FIELD_IN_ADD_INDEX Mark all columns as used for ALTER TABLE Style fixes Update call to filesort() sql/sql_trigger.h: Added friend functions to be able to test if triggers exists for table we are going to insert/update or delete in. sql/sql_udf.cc: Mark all columns as used for udf system table. sql/sql_union.cc: Update call to walk() Update to new handler interface sql/sql_update.cc: Remove query_id argument from compare_record() Use column bitmaps instead of query_id. We can't use compare_records() to skip updates for handlers that returns a partial column set and the read_set doesn't cover all columns in the write set, because compare_record() can't in this case know if a not read column changed value. Update call to setup_fields() Using separate column read and write sets allows for easier checking of timestamp field was set by statement. Removed call to free_io_cache() as this is now done in ha_reset() Call table->mark_columns_needed_for_update() and table->prepare_for_position() Style fixes sql/sql_view.cc: Style fixes sql/table.cc: Remove implicitely include 'errno.h' Remove code for building normalized path, as this is now identical to 'path' Remove field->fieldnr Added update of field->part_of_key_not_clustered() Create column bitmaps in TABLE and TABLE_SHARE Don't setup a temporary MEM_ROOT object as a thread specific variable for the handler. Instead we send the to-be-used MEMROOT to get_new_handler() Update to new handler interface Update call to walk() Added new functions: - st_table::clear_column_bitmaps() - st_table::prepare_for_position() - st_table::mark_columns_used_by_index() - st_table::restore_column_maps_after_mark_index() - st_table::mark_columns_used_by_index_no_reset() - st_table::mark_auto_increment_column() - st_table::mark_columns_needed_for_delete() - st_table::mark_columns_needed_for_update() - st_table::mark_columns_needed_for_insert() sql/table.h: Moved column usage bitmaps from handler to TABLE Added to TABLE_SHARE all_set and column_bitmap_size Added to TABLE merge_keys, bitmap_init_values, def_read_set, def_write_set, tmp_set, read_set and write_set. Declared all new table column bitmap functions Added TABLE functions column_bitmaps_set(), column_bitmaps_set_no_signal(), use_all_columns() and default_column_bitmaps() Added functions: tmp_use_all_columns() and tmp_restore_column_map() to temporarly switch column bitmaps Added functions: dbug_tmp_use_all_columns() and dbug_tmp_restore_column_map() to temporarly switch column bitmaps to avoid asserts in Field::store() and Field::val(). sql/tztime.cc: Mark all columns as used for timezone tables storage/archive/ha_archive.cc: Update to new handler interface storage/archive/ha_archive.h: Update to new handler interface storage/blackhole/ha_blackhole.cc: Update to new handler interface storage/blackhole/ha_blackhole.h: Update to new handler interface removed not needed flag HA_DUPP_POS storage/csv/ha_tina.cc: Update to new handler interface storage/csv/ha_tina.h: Update to new handler interface storage/example/ha_example.cc: Update to new handler interface storage/example/ha_example.h: Update to new handler interface storage/heap/hp_extra.c: Added heap_reset() (Required by new handler interface) storage/heap/hp_test2.c: Use heap_reset() storage/myisam/ft_boolean_search.c: Fixed compiler warning storage/myisam/mi_extra.c: Added mi_reset() (Required by new handler interface) storage/myisam/mi_search.c: Fixed DBUG_PRINT messages to use 0x%lx instead of %lx storage/myisam/mi_test2.c: Use mi_reset() storage/myisam/myisampack.c: Use mi_reset() storage/myisammrg/myrg_extra.c: Added myrg_reset() (Required by new handler interface) unittest/mysys/base64.t.c: Include my_global.h Don't include implictely include file 'stdlib.h'
2006-06-04 17:52:22 +02:00
bool walk(Item_processor processor, bool walk_subquery, byte *arg);
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
2002-05-12 22:46:42 +02:00
friend class select_subselect;
friend class Item_in_optimizer;
Name resolution context added (BUG#6443) include/my_bitmap.h: new bitmap operation mysql-test/r/view.result: added warnings Correct inserting data check (absence of default value) for view underlying tables (BUG#6443) mysql-test/t/view.test: Correct inserting data check (absence of default value) for view underlying tables (BUG#6443) mysys/my_bitmap.c: new bitmap operation sql/field.h: index of field in table added sql/item.cc: Name resolution context added table list removed from fix_fields() arguments sql/item.h: Name resolution context added table list removed from fix_fields() arguments sql/item_cmpfunc.cc: table list removed from fix_fields() arguments sql/item_cmpfunc.h: table list removed from fix_fields() arguments sql/item_func.cc: table list removed from fix_fields() arguments sql/item_func.h: table list removed from fix_fields() arguments sql/item_row.cc: table list removed from fix_fields() arguments sql/item_row.h: table list removed from fix_fields() arguments sql/item_strfunc.cc: fixed server crash on NULL argument sql/item_strfunc.h: table list removed from fix_fields() arguments sql/item_subselect.cc: table list removed from fix_fields() arguments sql/item_subselect.h: table list removed from fix_fields() arguments sql/item_sum.cc: table list removed from fix_fields() arguments sql/item_sum.h: table list removed from fix_fields() arguments sql/item_timefunc.cc: table list removed from fix_fields() arguments sql/item_timefunc.h: table list removed from fix_fields() arguments sql/item_uniq.h: table list removed from fix_fields() arguments sql/log_event.cc: Name resolution context added sql/log_event.h: Name resolution context added sql/mysql_priv.h: Name resolution context added sql/set_var.cc: table list removed from fix_fields() arguments sql/share/errmsg.txt: new error message sql/sp.cc: Name resolution context added sql/sp_head.cc: table list removed from fix_fields() arguments sql/sp_head.h: Name resolution context added sql/sql_base.cc: table list removed from fix_fields() arguments Name resolution context added sql/sql_class.cc: renamed variable sql/sql_delete.cc: Name resolution context added sql/sql_derived.cc: Name resolution context added sql/sql_do.cc: table list removed from fix_fields() arguments sql/sql_handler.cc: Name resolution context added sql/sql_help.cc: Name resolution context added sql/sql_insert.cc: Name resolution context added table list removed from fix_fields() arguments sql/sql_lex.cc: Name resolution context added sql/sql_lex.h: removed resolve mode (information stored into name resolution context) sql/sql_load.cc: table list removed from fix_fields() arguments sql/sql_olap.cc: Name resolution context added sql/sql_parse.cc: Name resolution context added sql/sql_prepare.cc: table list removed from fix_fields() arguments sql/sql_select.cc: table list removed from fix_fields() arguments sql/sql_show.cc: Name resolution context added sql/sql_trigger.cc: table list removed from fix_fields() arguments sql/sql_udf.h: table list removed from fix_fields() arguments sql/sql_union.cc: Name resolution context added sql/sql_update.cc: Name resolution context added sql/sql_view.cc: Name resolution context added sql/sql_view.h: table list removed from fix_fields() arguments sql/sql_yacc.yy: Name resolution context added sql/table.cc: Name resolution context added merged view processing moved sql/table.h: merged view processing moved
2005-07-01 06:05:42 +02:00
friend bool Item_field::fix_fields(THD *, Item **);
Fix bug #15706 find_field_in_tables() returns field from outer select If item->cached_table is set, find_field_in_tables() returns found field even if it doesn't belong to current select. Because Item_field::fix_fields doesn't expect such behaviour, reported bug occurs. Item_field::fix_fields() was modifed to detect when find_field_in_tables() can return field from outer select and process such fields accordingly. In order to ease this code which was searching and processing outed fields was moved into separate function called Item_field::fix_outer_field(). sql/item_subselect.h: Fixed bug #15706: find_field_in_tables() returns field from outer select Item_field::fix_outer_field() was marked as friend to Item_subselect class. sql/item.h: Fixed bug #15706: find_field_in_tables() returns field from outer select fix_outer_field() function is added to the Item_field class. sql/item.cc: Fixed bug #15706: find_field_in_tables() returns field from outer select Item_ref::fix_fields() and Item_field::fix_fields() were modifed to detect when find_field_in_tables() can return field from outer select and process such fields accordingly. In order to ease this, code Item_field::fix_fields() which was searching and processing outer fields was moved into separate function called Item_field::fix_outer_field(). To the Item_field::fix_field() added a loop for finding context for found field. mysql-test/t/disabled.def: Fixed bug #15706: find_field_in_tables() returns field from outer select Enable subselect test
2006-02-15 17:45:06 +01:00
friend int Item_field::fix_outer_field(THD *, Field **, Item **);
Name resolution context added (BUG#6443) include/my_bitmap.h: new bitmap operation mysql-test/r/view.result: added warnings Correct inserting data check (absence of default value) for view underlying tables (BUG#6443) mysql-test/t/view.test: Correct inserting data check (absence of default value) for view underlying tables (BUG#6443) mysys/my_bitmap.c: new bitmap operation sql/field.h: index of field in table added sql/item.cc: Name resolution context added table list removed from fix_fields() arguments sql/item.h: Name resolution context added table list removed from fix_fields() arguments sql/item_cmpfunc.cc: table list removed from fix_fields() arguments sql/item_cmpfunc.h: table list removed from fix_fields() arguments sql/item_func.cc: table list removed from fix_fields() arguments sql/item_func.h: table list removed from fix_fields() arguments sql/item_row.cc: table list removed from fix_fields() arguments sql/item_row.h: table list removed from fix_fields() arguments sql/item_strfunc.cc: fixed server crash on NULL argument sql/item_strfunc.h: table list removed from fix_fields() arguments sql/item_subselect.cc: table list removed from fix_fields() arguments sql/item_subselect.h: table list removed from fix_fields() arguments sql/item_sum.cc: table list removed from fix_fields() arguments sql/item_sum.h: table list removed from fix_fields() arguments sql/item_timefunc.cc: table list removed from fix_fields() arguments sql/item_timefunc.h: table list removed from fix_fields() arguments sql/item_uniq.h: table list removed from fix_fields() arguments sql/log_event.cc: Name resolution context added sql/log_event.h: Name resolution context added sql/mysql_priv.h: Name resolution context added sql/set_var.cc: table list removed from fix_fields() arguments sql/share/errmsg.txt: new error message sql/sp.cc: Name resolution context added sql/sp_head.cc: table list removed from fix_fields() arguments sql/sp_head.h: Name resolution context added sql/sql_base.cc: table list removed from fix_fields() arguments Name resolution context added sql/sql_class.cc: renamed variable sql/sql_delete.cc: Name resolution context added sql/sql_derived.cc: Name resolution context added sql/sql_do.cc: table list removed from fix_fields() arguments sql/sql_handler.cc: Name resolution context added sql/sql_help.cc: Name resolution context added sql/sql_insert.cc: Name resolution context added table list removed from fix_fields() arguments sql/sql_lex.cc: Name resolution context added sql/sql_lex.h: removed resolve mode (information stored into name resolution context) sql/sql_load.cc: table list removed from fix_fields() arguments sql/sql_olap.cc: Name resolution context added sql/sql_parse.cc: Name resolution context added sql/sql_prepare.cc: table list removed from fix_fields() arguments sql/sql_select.cc: table list removed from fix_fields() arguments sql/sql_show.cc: Name resolution context added sql/sql_trigger.cc: table list removed from fix_fields() arguments sql/sql_udf.h: table list removed from fix_fields() arguments sql/sql_union.cc: Name resolution context added sql/sql_update.cc: Name resolution context added sql/sql_view.cc: Name resolution context added sql/sql_view.h: table list removed from fix_fields() arguments sql/sql_yacc.yy: Name resolution context added sql/table.cc: Name resolution context added merged view processing moved sql/table.h: merged view processing moved
2005-07-01 06:05:42 +02:00
friend bool Item_ref::fix_fields(THD *, Item **);
friend void mark_select_range_as_dependent(THD*,
st_select_lex*, st_select_lex*,
Field*, Item*, Item_ident*);
simple subselects ported to new select_lex structures include/mysqld_error.h: simple subselects libmysqld/Makefile.am: simple subselects sql/Makefile.am: simple subselects sql/item.h: simple subselects sql/item_strfunc.h: simple subselects sql/share/czech/errmsg.txt: simple subselects sql/share/danish/errmsg.txt: simple subselects sql/share/dutch/errmsg.txt: simple subselects sql/share/english/errmsg.txt: simple subselects sql/share/estonian/errmsg.txt: simple subselects sql/share/french/errmsg.txt: simple subselects sql/share/german/errmsg.txt: simple subselects sql/share/greek/errmsg.txt: simple subselects sql/share/hungarian/errmsg.txt: simple subselects sql/share/italian/errmsg.txt: simple subselects sql/share/japanese/errmsg.txt: simple subselects sql/share/korean/errmsg.txt: simple subselects sql/share/norwegian-ny/errmsg.txt: simple subselects sql/share/norwegian/errmsg.txt: simple subselects sql/share/polish/errmsg.txt: simple subselects sql/share/portuguese/errmsg.txt: simple subselects sql/share/romanian/errmsg.txt: simple subselects sql/share/russian/errmsg.txt: simple subselects sql/share/slovak/errmsg.txt: simple subselects sql/share/spanish/errmsg.txt: simple subselects sql/share/swedish/errmsg.txt: simple subselects sql/share/ukrainian/errmsg.txt: simple subselects sql/sql_class.cc: simple subselects sql/sql_class.h: simple subselects sql/sql_lex.cc: simple subselects sql/sql_select.cc: simple subselects sql/sql_select.h: simple subselects sql/sql_union.cc: simple subselects sql/sql_yacc.yy: simple subselects
2002-05-12 22:46:42 +02:00
};
/* single value subselect */
class Item_cache;
class Item_singlerow_subselect :public Item_subselect
{
protected:
Item_cache *value, **row;
public:
Item_singlerow_subselect(st_select_lex *select_lex);
Item_singlerow_subselect() :Item_subselect(), value(0), row (0) {}
void cleanup();
subs_type substype() { return SINGLEROW_SUBS; }
void reset();
trans_res select_transformer(JOIN *join);
void store(uint i, Item* item);
double val_real();
longlong val_int ();
String *val_str (String *);
my_decimal *val_decimal(my_decimal *);
bool val_bool();
enum Item_result result_type() const;
void fix_length_and_dec();
uint cols();
Item* el(uint i) { return my_reinterpret_cast(Item*)(row[i]); }
Item** addr(uint i) { return (Item**)row + i; }
bool check_cols(uint c);
bool null_inside();
void bring_value();
friend class select_singlerow_subselect;
};
/* used in static ALL/ANY optimization */
class select_max_min_finder_subselect;
class Item_maxmin_subselect :public Item_singlerow_subselect
{
protected:
bool max;
bool was_values; // Set if we have found at least one row
public:
Item_maxmin_subselect(THD *thd, Item_subselect *parent,
st_select_lex *select_lex, bool max);
void print(String *str);
void cleanup();
bool any_value() { return was_values; }
void register_value() { was_values= TRUE; }
void reset_value_registration() { was_values= FALSE; }
};
/* exists subselect */
class Item_exists_subselect :public Item_subselect
{
protected:
bool value; /* value of this item (boolean: exists/not-exists) */
public:
Item_exists_subselect(st_select_lex *select_lex);
Item_exists_subselect(): Item_subselect() {}
subs_type substype() { return EXISTS_SUBS; }
void reset()
{
value= 0;
}
enum Item_result result_type() const { return INT_RESULT;}
longlong val_int();
double val_real();
String *val_str(String*);
my_decimal *val_decimal(my_decimal *);
bool val_bool();
void fix_length_and_dec();
void print(String *str);
friend class select_exists_subselect;
friend class subselect_uniquesubquery_engine;
friend class subselect_indexsubquery_engine;
};
/* IN subselect */
class Item_in_subselect :public Item_exists_subselect
{
protected:
Item *left_expr;
/*
expr & optimizer used in subselect rewriting to store Item for
all JOIN in UNION
*/
Item *expr;
Item_in_optimizer *optimizer;
bool was_null;
bool abort_on_null;
bool transformed;
public:
Item_func_not_all *upper_item; // point on NOT/NOP before ALL/SOME subquery
Item_in_subselect(Item * left_expr, st_select_lex *select_lex);
Item_in_subselect()
:Item_exists_subselect(), optimizer(0), abort_on_null(0), transformed(0),
upper_item(0)
{}
subs_type substype() { return IN_SUBS; }
void reset()
{
value= 0;
null_value= 0;
was_null= 0;
}
trans_res select_transformer(JOIN *join);
trans_res select_in_like_transformer(JOIN *join, Comp_creator *func);
trans_res single_value_transformer(JOIN *join, Comp_creator *func);
trans_res row_value_transformer(JOIN * join);
longlong val_int();
double val_real();
String *val_str(String*);
my_decimal *val_decimal(my_decimal *);
bool val_bool();
void top_level_item() { abort_on_null=1; }
bool test_limit(st_select_lex_unit *unit);
void print(String *str);
bool fix_fields(THD *thd, Item **ref);
friend class Item_ref_null_helper;
friend class Item_is_not_null_test;
friend class subselect_indexsubquery_engine;
};
/* ALL/ANY/SOME subselect */
class Item_allany_subselect :public Item_in_subselect
{
protected:
Comp_creator *func;
public:
bool all;
Item_allany_subselect(Item * left_expr, Comp_creator *f,
st_select_lex *select_lex, bool all);
// only ALL subquery has upper not
subs_type substype() { return all?ALL_SUBS:ANY_SUBS; }
trans_res select_transformer(JOIN *join);
void print(String *str);
};
2002-12-27 20:19:25 +01:00
class subselect_engine: public Sql_alloc
{
protected:
select_subselect *result; /* results storage class */
THD *thd; /* pointer to current THD */
Item_subselect *item; /* item, that use this engine */
enum Item_result res_type; /* type of results */
2002-12-27 20:19:25 +01:00
bool maybe_null; /* may be null (first item in select) */
public:
subselect_engine(Item_subselect *si, select_subselect *res)
:thd(0)
{
result= res;
item= si;
res_type= STRING_RESULT;
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maybe_null= 0;
}
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virtual ~subselect_engine() {}; // to satisfy compiler
virtual void cleanup()= 0;
Clumsy but working fix for bug #11973 "SELECT .. INTO var_name; in trigger cause crash on update". Let us update "thd" pointer in LEX, all its units and in LEX::result before executing statement in trigger body, since triggers are associated with TABLE object and because of this can be used in different threads. mysql-test/r/trigger.result: Added test case for bug #11973 "SELECT .. INTO var_name; in trigger cause crash on update". mysql-test/t/trigger.test: Added test case for bug #11973 "SELECT .. INTO var_name; in trigger cause crash on update". sql/item_subselect.cc: subselect_engine: Moved implementation of set_thd() method to item_subselect.cc, since now it also sets "thd" for subselect_engine::result. sql/item_subselect.h: subselect_engine: Moved implementation of set_thd() method to item_subselect.cc, since now it also sets "thd" for subselect_engine::result. sql/sql_class.h: select_result: Added set_thd() method for updating select_result::thd value (we need this in cases when statement to which this select_result belongs will be used in different threads, as it happens for statements in trigger body). multi_delete/multi_update: Got rid of redundant "thd" member (we already have it in select_result). sql/sql_delete.cc: multi_delete: Got rid of redundant "thd" member (we already have it in select_result). sql/sql_lex.h: st_select_lex_unit: Added set_thd() method for updating st_select_lex_unit::thd value (we need this in cases when statement to which this unit belongs will be used in different threads, as it happens for statements in trigger body). We don't update thd of select_result pointed by st_select_lex_unit::result in this method, since it is either have too short lifetime (i.e. created for each execution) or is accessible via Item_subquery or LEX::result and thus already taken care of. sql/sql_parse.cc: multi_delete: Got rid of redundant "thd" member (we already have it in select_result). sql/sql_prepare.cc: reinit_stmt_before_use(): We have to update "thd" pointer in LEX, all its units and in LEX::result, since statements which belong to trigger body are associated with TABLE object and because of this can be used in different threads. sql/sql_update.cc: multi_update: Got rid of redundant "thd" member (we already have it in select_result).
2005-08-09 22:23:56 +02:00
/*
Also sets "thd" for subselect_engine::result.
Should be called before prepare().
*/
void set_thd(THD *thd_arg);
THD * get_thd() { return thd; }
virtual int prepare()= 0;
virtual void fix_length_and_dec(Item_cache** row)= 0;
virtual int exec()= 0;
virtual uint cols()= 0; /* return number of columns in select */
virtual uint8 uncacheable()= 0; /* query is uncacheable */
enum Item_result type() { return res_type; }
fixed * without tables in IN bug fixed sunction-test select in IN bug fixed unions in subselect bug include/mysqld_error.h: new warning mysql-test/r/subselect.result: test of * without tables in IN test of sunction-test select in IN test of unions in subselect mysql-test/t/subselect.test: test of * without tables in IN test of sunction-test select in IN test of unions in subselect sql/item.cc: fixed * substitution without tables sql/item_subselect.cc: fixed subselect rewriting with function-test subselect sql/item_subselect.h: mechanism for subselect removing sql/share/czech/errmsg.txt: new warning sql/share/danish/errmsg.txt: new warning sql/share/dutch/errmsg.txt: new warning sql/share/english/errmsg.txt: new warning sql/share/estonian/errmsg.txt: new warning sql/share/french/errmsg.txt: new warning sql/share/german/errmsg.txt: new warning sql/share/greek/errmsg.txt: new warning sql/share/hungarian/errmsg.txt: new warning sql/share/italian/errmsg.txt: new warning sql/share/japanese/errmsg.txt: new warning sql/share/korean/errmsg.txt: new warning sql/share/norwegian-ny/errmsg.txt: new warning sql/share/norwegian/errmsg.txt: new warning sql/share/polish/errmsg.txt: new warning sql/share/portuguese/errmsg.txt: new warning sql/share/romanian/errmsg.txt: new warning sql/share/russian/errmsg.txt: new warning sql/share/serbian/errmsg.txt: new warning sql/share/slovak/errmsg.txt: new warning sql/share/spanish/errmsg.txt: new warning sql/share/swedish/errmsg.txt: new warning sql/share/ukrainian/errmsg.txt: new warning sql/sql_base.cc: fixed case on no name field in UNION subselect sql/sql_lex.cc: mechanisp of removing single subselect for optimisation purposes sql/sql_lex.h: mechanisp of removing single subselect for optimisation purposes sql/sql_parse.cc: error handling sql/sql_union.cc: fixed unions in subselect sql/sql_yacc.yy: fixed Lex->describe flag appearence
2002-11-28 18:29:26 +01:00
virtual void exclude()= 0;
2002-12-27 20:19:25 +01:00
bool may_be_null() { return maybe_null; };
virtual table_map upper_select_const_tables()= 0;
static table_map calc_const_tables(TABLE_LIST *);
virtual void print(String *str)= 0;
errors without code removed net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed (WL#2133) include/mysqld_error.h: new errors added. mysql-test/r/rpl_charset.result: new error mysql-test/r/rpl_timezone.result: new error mysql-test/r/sp-security.result: more clean error message mysql-test/r/sp.result: now error state intercepted correctly mysql-test/t/connect.test: new error message mysql-test/t/rpl_charset.test: new error message mysql-test/t/rpl_timezone.test: new error mysql-test/t/sp-security.test: more correct error handling mysql-test/t/sp.test: now error state intercepted correctly sql/ha_innodb.cc: -1/1 (sent/unsent) error reporting removed sql/ha_innodb.h: -1/1 (sent/unsent) error reporting removed sql/item.cc: only boolean values should be returned by fix_fields() sql/item_cmpfunc.cc: only boolean values should be returned by fix_fields() sql/item_func.cc: only boolean values should be returned by fix_fields() net_printf/send_error calls replaced by my_error family functions sql/item_row.cc: only boolean values should be returned by fix_fields() sql/item_subselect.cc: only boolean values should be returned by fix_fields() -1/1 (sent/unsent) error reporting removed sql/item_subselect.h: -1/1 (sent/unsent) error reporting removed sql/item_sum.cc: only boolean values should be returned by fix_fields() sql/item_timefunc.cc: only boolean values should be returned by fix_fields() sql/item_uniq.h: only boolean values should be returned by fix_fields() sql/mysql_priv.h: -1/1 (sent/unsent) error reporting removed sql/mysqld.cc: net_printf/send_error calls replaced by my_error family functions changes in my_message_sql to support error handling correctly sql/protocol.cc: net_printf/send_error calls replaced by my_error family functions sql/protocol_cursor.cc: net_printf/send_error calls replaced by my_error family functions sql/repl_failsafe.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/repl_failsafe.h: -1/1 (sent/unsent) error reporting removed sql/set_var.cc: net_printf/send_error calls replaced by my_error family functions sql/share/czech/errmsg.txt: new error messages sql/share/danish/errmsg.txt: new error messages sql/share/dutch/errmsg.txt: new error messages sql/share/english/errmsg.txt: new error messages sql/share/estonian/errmsg.txt: new error messages sql/share/french/errmsg.txt: new error messages sql/share/german/errmsg.txt: new error messages sql/share/greek/errmsg.txt: new error messages sql/share/hungarian/errmsg.txt: new error messages sql/share/italian/errmsg.txt: new error messages sql/share/japanese/errmsg.txt: new error messages sql/share/korean/errmsg.txt: new error messages sql/share/norwegian-ny/errmsg.txt: new error messages sql/share/norwegian/errmsg.txt: new error messages sql/share/polish/errmsg.txt: new error messages sql/share/portuguese/errmsg.txt: new error messages sql/share/romanian/errmsg.txt: new error messages sql/share/russian/errmsg.txt: new error messages sql/share/serbian/errmsg.txt: new error messages sql/share/slovak/errmsg.txt: new error messages sql/share/spanish/errmsg.txt: new error messages sql/share/swedish/errmsg.txt: new error messages sql/share/ukrainian/errmsg.txt: new error messages sql/slave.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/slave.h: -1/1 (sent/unsent) error reporting removed sql/sp.cc: net_printf/send_error calls replaced by my_error family functions sql/sp_head.cc: new eror handling support net_printf/send_error calls replaced by my_error family functions sql/sp_rcontext.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_acl.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_acl.h: -1/1 (sent/unsent) error reporting removed sql/sql_base.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_class.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_class.h: my_messhage_sql now set/reset query_error flag sql/sql_db.cc: -1/1 (sent/unsent) error reporting removed sql/sql_delete.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_do.cc: -1/1 (sent/unsent) error reporting removed sql/sql_error.cc: -1/1 (sent/unsent) error reporting removed sql/sql_handler.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_help.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_insert.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_lex.h: -1/1 (sent/unsent) error reporting removed sql/sql_load.cc: -1/1 (sent/unsent) error reporting removed sql/sql_map.cc: errors without code removed sql/sql_parse.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed from mysql_execute_command sql/sql_prepare.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_repl.cc: error messages fixed net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_repl.h: -1/1 (sent/unsent) error reporting removed sql/sql_select.cc: -1/1 (sent/unsent) error reporting removed sql/sql_select.h: -1/1 (sent/unsent) error reporting removed sql/sql_show.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_table.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_trigger.cc: -1/1 (sent/unsent) error reporting removed sql/sql_udf.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_union.cc: -1/1 (sent/unsent) error reporting removed sql/sql_update.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_view.cc: -1/1 (sent/unsent) error reporting removed sql/sql_view.h: -1/1 (sent/unsent) error reporting removed sql/sql_yacc.yy: net_printf/send_error calls replaced by my_error family functions
2004-10-20 03:04:37 +02:00
virtual bool change_result(Item_subselect *si, select_subselect *result)= 0;
virtual bool no_tables()= 0;
virtual bool is_executed() const { return FALSE; }
};
class subselect_single_select_engine: public subselect_engine
{
my_bool prepared; /* simple subselect is prepared */
my_bool optimized; /* simple subselect is optimized */
my_bool executed; /* simple subselect is executed */
st_select_lex *select_lex; /* corresponding select_lex */
JOIN * join; /* corresponding JOIN structure */
public:
subselect_single_select_engine(st_select_lex *select,
select_subselect *result,
Item_subselect *item);
void cleanup();
int prepare();
void fix_length_and_dec(Item_cache** row);
int exec();
uint cols();
uint8 uncacheable();
fixed * without tables in IN bug fixed sunction-test select in IN bug fixed unions in subselect bug include/mysqld_error.h: new warning mysql-test/r/subselect.result: test of * without tables in IN test of sunction-test select in IN test of unions in subselect mysql-test/t/subselect.test: test of * without tables in IN test of sunction-test select in IN test of unions in subselect sql/item.cc: fixed * substitution without tables sql/item_subselect.cc: fixed subselect rewriting with function-test subselect sql/item_subselect.h: mechanism for subselect removing sql/share/czech/errmsg.txt: new warning sql/share/danish/errmsg.txt: new warning sql/share/dutch/errmsg.txt: new warning sql/share/english/errmsg.txt: new warning sql/share/estonian/errmsg.txt: new warning sql/share/french/errmsg.txt: new warning sql/share/german/errmsg.txt: new warning sql/share/greek/errmsg.txt: new warning sql/share/hungarian/errmsg.txt: new warning sql/share/italian/errmsg.txt: new warning sql/share/japanese/errmsg.txt: new warning sql/share/korean/errmsg.txt: new warning sql/share/norwegian-ny/errmsg.txt: new warning sql/share/norwegian/errmsg.txt: new warning sql/share/polish/errmsg.txt: new warning sql/share/portuguese/errmsg.txt: new warning sql/share/romanian/errmsg.txt: new warning sql/share/russian/errmsg.txt: new warning sql/share/serbian/errmsg.txt: new warning sql/share/slovak/errmsg.txt: new warning sql/share/spanish/errmsg.txt: new warning sql/share/swedish/errmsg.txt: new warning sql/share/ukrainian/errmsg.txt: new warning sql/sql_base.cc: fixed case on no name field in UNION subselect sql/sql_lex.cc: mechanisp of removing single subselect for optimisation purposes sql/sql_lex.h: mechanisp of removing single subselect for optimisation purposes sql/sql_parse.cc: error handling sql/sql_union.cc: fixed unions in subselect sql/sql_yacc.yy: fixed Lex->describe flag appearence
2002-11-28 18:29:26 +01:00
void exclude();
table_map upper_select_const_tables();
void print (String *str);
errors without code removed net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed (WL#2133) include/mysqld_error.h: new errors added. mysql-test/r/rpl_charset.result: new error mysql-test/r/rpl_timezone.result: new error mysql-test/r/sp-security.result: more clean error message mysql-test/r/sp.result: now error state intercepted correctly mysql-test/t/connect.test: new error message mysql-test/t/rpl_charset.test: new error message mysql-test/t/rpl_timezone.test: new error mysql-test/t/sp-security.test: more correct error handling mysql-test/t/sp.test: now error state intercepted correctly sql/ha_innodb.cc: -1/1 (sent/unsent) error reporting removed sql/ha_innodb.h: -1/1 (sent/unsent) error reporting removed sql/item.cc: only boolean values should be returned by fix_fields() sql/item_cmpfunc.cc: only boolean values should be returned by fix_fields() sql/item_func.cc: only boolean values should be returned by fix_fields() net_printf/send_error calls replaced by my_error family functions sql/item_row.cc: only boolean values should be returned by fix_fields() sql/item_subselect.cc: only boolean values should be returned by fix_fields() -1/1 (sent/unsent) error reporting removed sql/item_subselect.h: -1/1 (sent/unsent) error reporting removed sql/item_sum.cc: only boolean values should be returned by fix_fields() sql/item_timefunc.cc: only boolean values should be returned by fix_fields() sql/item_uniq.h: only boolean values should be returned by fix_fields() sql/mysql_priv.h: -1/1 (sent/unsent) error reporting removed sql/mysqld.cc: net_printf/send_error calls replaced by my_error family functions changes in my_message_sql to support error handling correctly sql/protocol.cc: net_printf/send_error calls replaced by my_error family functions sql/protocol_cursor.cc: net_printf/send_error calls replaced by my_error family functions sql/repl_failsafe.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/repl_failsafe.h: -1/1 (sent/unsent) error reporting removed sql/set_var.cc: net_printf/send_error calls replaced by my_error family functions sql/share/czech/errmsg.txt: new error messages sql/share/danish/errmsg.txt: new error messages sql/share/dutch/errmsg.txt: new error messages sql/share/english/errmsg.txt: new error messages sql/share/estonian/errmsg.txt: new error messages sql/share/french/errmsg.txt: new error messages sql/share/german/errmsg.txt: new error messages sql/share/greek/errmsg.txt: new error messages sql/share/hungarian/errmsg.txt: new error messages sql/share/italian/errmsg.txt: new error messages sql/share/japanese/errmsg.txt: new error messages sql/share/korean/errmsg.txt: new error messages sql/share/norwegian-ny/errmsg.txt: new error messages sql/share/norwegian/errmsg.txt: new error messages sql/share/polish/errmsg.txt: new error messages sql/share/portuguese/errmsg.txt: new error messages sql/share/romanian/errmsg.txt: new error messages sql/share/russian/errmsg.txt: new error messages sql/share/serbian/errmsg.txt: new error messages sql/share/slovak/errmsg.txt: new error messages sql/share/spanish/errmsg.txt: new error messages sql/share/swedish/errmsg.txt: new error messages sql/share/ukrainian/errmsg.txt: new error messages sql/slave.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/slave.h: -1/1 (sent/unsent) error reporting removed sql/sp.cc: net_printf/send_error calls replaced by my_error family functions sql/sp_head.cc: new eror handling support net_printf/send_error calls replaced by my_error family functions sql/sp_rcontext.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_acl.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_acl.h: -1/1 (sent/unsent) error reporting removed sql/sql_base.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_class.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_class.h: my_messhage_sql now set/reset query_error flag sql/sql_db.cc: -1/1 (sent/unsent) error reporting removed sql/sql_delete.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_do.cc: -1/1 (sent/unsent) error reporting removed sql/sql_error.cc: -1/1 (sent/unsent) error reporting removed sql/sql_handler.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_help.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_insert.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_lex.h: -1/1 (sent/unsent) error reporting removed sql/sql_load.cc: -1/1 (sent/unsent) error reporting removed sql/sql_map.cc: errors without code removed sql/sql_parse.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed from mysql_execute_command sql/sql_prepare.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_repl.cc: error messages fixed net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_repl.h: -1/1 (sent/unsent) error reporting removed sql/sql_select.cc: -1/1 (sent/unsent) error reporting removed sql/sql_select.h: -1/1 (sent/unsent) error reporting removed sql/sql_show.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_table.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_trigger.cc: -1/1 (sent/unsent) error reporting removed sql/sql_udf.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_union.cc: -1/1 (sent/unsent) error reporting removed sql/sql_update.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_view.cc: -1/1 (sent/unsent) error reporting removed sql/sql_view.h: -1/1 (sent/unsent) error reporting removed sql/sql_yacc.yy: net_printf/send_error calls replaced by my_error family functions
2004-10-20 03:04:37 +02:00
bool change_result(Item_subselect *si, select_subselect *result);
bool no_tables();
bool is_executed() const { return executed; }
};
class subselect_union_engine: public subselect_engine
{
st_select_lex_unit *unit; /* corresponding unit structure */
public:
subselect_union_engine(st_select_lex_unit *u,
select_subselect *result,
Item_subselect *item);
void cleanup();
int prepare();
void fix_length_and_dec(Item_cache** row);
int exec();
uint cols();
uint8 uncacheable();
fixed * without tables in IN bug fixed sunction-test select in IN bug fixed unions in subselect bug include/mysqld_error.h: new warning mysql-test/r/subselect.result: test of * without tables in IN test of sunction-test select in IN test of unions in subselect mysql-test/t/subselect.test: test of * without tables in IN test of sunction-test select in IN test of unions in subselect sql/item.cc: fixed * substitution without tables sql/item_subselect.cc: fixed subselect rewriting with function-test subselect sql/item_subselect.h: mechanism for subselect removing sql/share/czech/errmsg.txt: new warning sql/share/danish/errmsg.txt: new warning sql/share/dutch/errmsg.txt: new warning sql/share/english/errmsg.txt: new warning sql/share/estonian/errmsg.txt: new warning sql/share/french/errmsg.txt: new warning sql/share/german/errmsg.txt: new warning sql/share/greek/errmsg.txt: new warning sql/share/hungarian/errmsg.txt: new warning sql/share/italian/errmsg.txt: new warning sql/share/japanese/errmsg.txt: new warning sql/share/korean/errmsg.txt: new warning sql/share/norwegian-ny/errmsg.txt: new warning sql/share/norwegian/errmsg.txt: new warning sql/share/polish/errmsg.txt: new warning sql/share/portuguese/errmsg.txt: new warning sql/share/romanian/errmsg.txt: new warning sql/share/russian/errmsg.txt: new warning sql/share/serbian/errmsg.txt: new warning sql/share/slovak/errmsg.txt: new warning sql/share/spanish/errmsg.txt: new warning sql/share/swedish/errmsg.txt: new warning sql/share/ukrainian/errmsg.txt: new warning sql/sql_base.cc: fixed case on no name field in UNION subselect sql/sql_lex.cc: mechanisp of removing single subselect for optimisation purposes sql/sql_lex.h: mechanisp of removing single subselect for optimisation purposes sql/sql_parse.cc: error handling sql/sql_union.cc: fixed unions in subselect sql/sql_yacc.yy: fixed Lex->describe flag appearence
2002-11-28 18:29:26 +01:00
void exclude();
table_map upper_select_const_tables();
void print (String *str);
errors without code removed net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed (WL#2133) include/mysqld_error.h: new errors added. mysql-test/r/rpl_charset.result: new error mysql-test/r/rpl_timezone.result: new error mysql-test/r/sp-security.result: more clean error message mysql-test/r/sp.result: now error state intercepted correctly mysql-test/t/connect.test: new error message mysql-test/t/rpl_charset.test: new error message mysql-test/t/rpl_timezone.test: new error mysql-test/t/sp-security.test: more correct error handling mysql-test/t/sp.test: now error state intercepted correctly sql/ha_innodb.cc: -1/1 (sent/unsent) error reporting removed sql/ha_innodb.h: -1/1 (sent/unsent) error reporting removed sql/item.cc: only boolean values should be returned by fix_fields() sql/item_cmpfunc.cc: only boolean values should be returned by fix_fields() sql/item_func.cc: only boolean values should be returned by fix_fields() net_printf/send_error calls replaced by my_error family functions sql/item_row.cc: only boolean values should be returned by fix_fields() sql/item_subselect.cc: only boolean values should be returned by fix_fields() -1/1 (sent/unsent) error reporting removed sql/item_subselect.h: -1/1 (sent/unsent) error reporting removed sql/item_sum.cc: only boolean values should be returned by fix_fields() sql/item_timefunc.cc: only boolean values should be returned by fix_fields() sql/item_uniq.h: only boolean values should be returned by fix_fields() sql/mysql_priv.h: -1/1 (sent/unsent) error reporting removed sql/mysqld.cc: net_printf/send_error calls replaced by my_error family functions changes in my_message_sql to support error handling correctly sql/protocol.cc: net_printf/send_error calls replaced by my_error family functions sql/protocol_cursor.cc: net_printf/send_error calls replaced by my_error family functions sql/repl_failsafe.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/repl_failsafe.h: -1/1 (sent/unsent) error reporting removed sql/set_var.cc: net_printf/send_error calls replaced by my_error family functions sql/share/czech/errmsg.txt: new error messages sql/share/danish/errmsg.txt: new error messages sql/share/dutch/errmsg.txt: new error messages sql/share/english/errmsg.txt: new error messages sql/share/estonian/errmsg.txt: new error messages sql/share/french/errmsg.txt: new error messages sql/share/german/errmsg.txt: new error messages sql/share/greek/errmsg.txt: new error messages sql/share/hungarian/errmsg.txt: new error messages sql/share/italian/errmsg.txt: new error messages sql/share/japanese/errmsg.txt: new error messages sql/share/korean/errmsg.txt: new error messages sql/share/norwegian-ny/errmsg.txt: new error messages sql/share/norwegian/errmsg.txt: new error messages sql/share/polish/errmsg.txt: new error messages sql/share/portuguese/errmsg.txt: new error messages sql/share/romanian/errmsg.txt: new error messages sql/share/russian/errmsg.txt: new error messages sql/share/serbian/errmsg.txt: new error messages sql/share/slovak/errmsg.txt: new error messages sql/share/spanish/errmsg.txt: new error messages sql/share/swedish/errmsg.txt: new error messages sql/share/ukrainian/errmsg.txt: new error messages sql/slave.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/slave.h: -1/1 (sent/unsent) error reporting removed sql/sp.cc: net_printf/send_error calls replaced by my_error family functions sql/sp_head.cc: new eror handling support net_printf/send_error calls replaced by my_error family functions sql/sp_rcontext.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_acl.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_acl.h: -1/1 (sent/unsent) error reporting removed sql/sql_base.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_class.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_class.h: my_messhage_sql now set/reset query_error flag sql/sql_db.cc: -1/1 (sent/unsent) error reporting removed sql/sql_delete.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_do.cc: -1/1 (sent/unsent) error reporting removed sql/sql_error.cc: -1/1 (sent/unsent) error reporting removed sql/sql_handler.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_help.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_insert.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_lex.h: -1/1 (sent/unsent) error reporting removed sql/sql_load.cc: -1/1 (sent/unsent) error reporting removed sql/sql_map.cc: errors without code removed sql/sql_parse.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed from mysql_execute_command sql/sql_prepare.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_repl.cc: error messages fixed net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_repl.h: -1/1 (sent/unsent) error reporting removed sql/sql_select.cc: -1/1 (sent/unsent) error reporting removed sql/sql_select.h: -1/1 (sent/unsent) error reporting removed sql/sql_show.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_table.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_trigger.cc: -1/1 (sent/unsent) error reporting removed sql/sql_udf.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_union.cc: -1/1 (sent/unsent) error reporting removed sql/sql_update.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_view.cc: -1/1 (sent/unsent) error reporting removed sql/sql_view.h: -1/1 (sent/unsent) error reporting removed sql/sql_yacc.yy: net_printf/send_error calls replaced by my_error family functions
2004-10-20 03:04:37 +02:00
bool change_result(Item_subselect *si, select_subselect *result);
bool no_tables();
bool is_executed() const;
};
struct st_join_table;
class subselect_uniquesubquery_engine: public subselect_engine
{
protected:
st_join_table *tab;
Item *cond;
public:
// constructor can assign THD because it will be called after JOIN::prepare
Added missing SSL library (Should be in source distribution) Fixed compiler warnings (a lot of hidden variables detected by the Forte compiler) Added a lot of 'version_xxx' strings to 'show variables' Prevent copying of TMP_TABLE_PARAM (This caused core dump bug on Solaris) Fixed problem with printing sub selects to debug log Docs/mysqld_error.txt: Updated error messages Makefile.am: Added missing SSL library (Should be in source distribution) configure.in: Added missing SSL library include/sql_common.h: Move duplicated prototypes innobase/os/os0file.c: Added comment for line that could be removed innobase/srv/srv0srv.c: Added comment for line that could be removed innobase/srv/srv0start.c: Added comment for line that could be removed innobase/trx/trx0sys.c: Added cast to remove compiler warning isam/isamchk.c: Fixed compiler warning libmysql/conf_to_src.c: Include files in proper order myisam/mi_check.c: Removed else part that caused compiler warning myisam/mi_delete.c: Added cast myisam/mi_page.c: Added cast myisam/mi_preload.c: Added cast myisam/mi_write.c: Added cast myisam/myisampack.c: changed 'byte' to 'current_byte' to avoid compiler warnings mysql-test/mysql-test-run.sh: Removed start-from as test '<' is not portable and this can easily be done from command line mysys/hash.c: Added cast mysys/mf_wcomp.c: Removed not reached line mysys/my_append.c: Fixed include file order to get this more portable mysys/my_copy.c: Fixed include file order to get this more portable mysys/my_redel.c: Fixed include file order to get this more portable sql-common/client.c: More DBUG_PRINT sql-common/pack.c: Added casts becasue Fortre compiler apparently compares (ulonglong) < (longlong) as signed sql/ha_heap.cc: Changed variable names to not cause hidden variables sql/ha_innodb.cc: Changed variable names to not cause hidden variables sql/item.cc: Changed variable names to not cause hidden variables sql/item.h: Changed variable names to not cause hidden variables sql/item_cmpfunc.h: Changed variable names to not cause hidden variables sql/item_func.cc: Changed variable names to not cause hidden variables sql/item_subselect.cc: Changed variable names to not cause hidden variables sql/item_subselect.h: Changed variable names to not cause hidden variables sql/item_sum.cc: Changed variable names to not cause hidden variables sql/item_timefunc.cc: Changed variable names to not cause hidden variables sql/log.cc: Changed variable names to not cause hidden variables sql/protocol.cc: Changed variable names to not cause hidden variables sql/protocol.h: Changed variable names to not cause hidden variables Remove function not declared in protocol.cc sql/protocol_cursor.cc: Changed variable names to not cause hidden variables sql/set_var.cc: Added a lot of 'version_xxx' strings Changed 'bdb_version' to 'version_bdb' sql/sql_class.cc: Changed variable names to not cause hidden variables Add TMP_TABLE_PARAM::init() to allow one to initialize structure several times sql/sql_class.h: Prevent copying of TMP_TABLE_PARAM (This caused core dump bug on Solaris) sql/sql_derived.cc: Avoid copying TMP_TABLE_PARAM (Use class version instead) sql/sql_error.cc: More DBUG sql/sql_help.cc: Fixed compiler warning sql/sql_lex.cc: Changed variable names to not cause hidden variables sql/sql_list.h: Changed variable names to not cause hidden variables sql/sql_parse.cc: Changed variable names to not cause hidden variables sql/sql_select.cc: Changed variable names to not cause hidden variables Ensure that you don't send NULL to printf() for %s Fixed problem with printing sub selects to debug log sql/sql_select.h: Changed variable names to not cause hidden variables sql/sql_union.cc: Changed variable names to not cause hidden variables Don't use local copy of TMP_TABLE_PARAM (Caused core dump on Solaris) sql/sql_update.cc: Indentation cleanup sql/sql_yacc.yy: Remove warning strings/conf_to_src.c: Fixed include file order
2003-11-28 11:18:13 +01:00
subselect_uniquesubquery_engine(THD *thd_arg, st_join_table *tab_arg,
Item_subselect *subs, Item *where)
:subselect_engine(subs, 0), tab(tab_arg), cond(where)
{
Added missing SSL library (Should be in source distribution) Fixed compiler warnings (a lot of hidden variables detected by the Forte compiler) Added a lot of 'version_xxx' strings to 'show variables' Prevent copying of TMP_TABLE_PARAM (This caused core dump bug on Solaris) Fixed problem with printing sub selects to debug log Docs/mysqld_error.txt: Updated error messages Makefile.am: Added missing SSL library (Should be in source distribution) configure.in: Added missing SSL library include/sql_common.h: Move duplicated prototypes innobase/os/os0file.c: Added comment for line that could be removed innobase/srv/srv0srv.c: Added comment for line that could be removed innobase/srv/srv0start.c: Added comment for line that could be removed innobase/trx/trx0sys.c: Added cast to remove compiler warning isam/isamchk.c: Fixed compiler warning libmysql/conf_to_src.c: Include files in proper order myisam/mi_check.c: Removed else part that caused compiler warning myisam/mi_delete.c: Added cast myisam/mi_page.c: Added cast myisam/mi_preload.c: Added cast myisam/mi_write.c: Added cast myisam/myisampack.c: changed 'byte' to 'current_byte' to avoid compiler warnings mysql-test/mysql-test-run.sh: Removed start-from as test '<' is not portable and this can easily be done from command line mysys/hash.c: Added cast mysys/mf_wcomp.c: Removed not reached line mysys/my_append.c: Fixed include file order to get this more portable mysys/my_copy.c: Fixed include file order to get this more portable mysys/my_redel.c: Fixed include file order to get this more portable sql-common/client.c: More DBUG_PRINT sql-common/pack.c: Added casts becasue Fortre compiler apparently compares (ulonglong) < (longlong) as signed sql/ha_heap.cc: Changed variable names to not cause hidden variables sql/ha_innodb.cc: Changed variable names to not cause hidden variables sql/item.cc: Changed variable names to not cause hidden variables sql/item.h: Changed variable names to not cause hidden variables sql/item_cmpfunc.h: Changed variable names to not cause hidden variables sql/item_func.cc: Changed variable names to not cause hidden variables sql/item_subselect.cc: Changed variable names to not cause hidden variables sql/item_subselect.h: Changed variable names to not cause hidden variables sql/item_sum.cc: Changed variable names to not cause hidden variables sql/item_timefunc.cc: Changed variable names to not cause hidden variables sql/log.cc: Changed variable names to not cause hidden variables sql/protocol.cc: Changed variable names to not cause hidden variables sql/protocol.h: Changed variable names to not cause hidden variables Remove function not declared in protocol.cc sql/protocol_cursor.cc: Changed variable names to not cause hidden variables sql/set_var.cc: Added a lot of 'version_xxx' strings Changed 'bdb_version' to 'version_bdb' sql/sql_class.cc: Changed variable names to not cause hidden variables Add TMP_TABLE_PARAM::init() to allow one to initialize structure several times sql/sql_class.h: Prevent copying of TMP_TABLE_PARAM (This caused core dump bug on Solaris) sql/sql_derived.cc: Avoid copying TMP_TABLE_PARAM (Use class version instead) sql/sql_error.cc: More DBUG sql/sql_help.cc: Fixed compiler warning sql/sql_lex.cc: Changed variable names to not cause hidden variables sql/sql_list.h: Changed variable names to not cause hidden variables sql/sql_parse.cc: Changed variable names to not cause hidden variables sql/sql_select.cc: Changed variable names to not cause hidden variables Ensure that you don't send NULL to printf() for %s Fixed problem with printing sub selects to debug log sql/sql_select.h: Changed variable names to not cause hidden variables sql/sql_union.cc: Changed variable names to not cause hidden variables Don't use local copy of TMP_TABLE_PARAM (Caused core dump on Solaris) sql/sql_update.cc: Indentation cleanup sql/sql_yacc.yy: Remove warning strings/conf_to_src.c: Fixed include file order
2003-11-28 11:18:13 +01:00
set_thd(thd_arg);
}
~subselect_uniquesubquery_engine();
void cleanup();
int prepare();
void fix_length_and_dec(Item_cache** row);
int exec();
uint cols() { return 1; }
uint8 uncacheable() { return UNCACHEABLE_DEPENDENT; }
void exclude();
table_map upper_select_const_tables() { return 0; }
void print (String *str);
errors without code removed net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed (WL#2133) include/mysqld_error.h: new errors added. mysql-test/r/rpl_charset.result: new error mysql-test/r/rpl_timezone.result: new error mysql-test/r/sp-security.result: more clean error message mysql-test/r/sp.result: now error state intercepted correctly mysql-test/t/connect.test: new error message mysql-test/t/rpl_charset.test: new error message mysql-test/t/rpl_timezone.test: new error mysql-test/t/sp-security.test: more correct error handling mysql-test/t/sp.test: now error state intercepted correctly sql/ha_innodb.cc: -1/1 (sent/unsent) error reporting removed sql/ha_innodb.h: -1/1 (sent/unsent) error reporting removed sql/item.cc: only boolean values should be returned by fix_fields() sql/item_cmpfunc.cc: only boolean values should be returned by fix_fields() sql/item_func.cc: only boolean values should be returned by fix_fields() net_printf/send_error calls replaced by my_error family functions sql/item_row.cc: only boolean values should be returned by fix_fields() sql/item_subselect.cc: only boolean values should be returned by fix_fields() -1/1 (sent/unsent) error reporting removed sql/item_subselect.h: -1/1 (sent/unsent) error reporting removed sql/item_sum.cc: only boolean values should be returned by fix_fields() sql/item_timefunc.cc: only boolean values should be returned by fix_fields() sql/item_uniq.h: only boolean values should be returned by fix_fields() sql/mysql_priv.h: -1/1 (sent/unsent) error reporting removed sql/mysqld.cc: net_printf/send_error calls replaced by my_error family functions changes in my_message_sql to support error handling correctly sql/protocol.cc: net_printf/send_error calls replaced by my_error family functions sql/protocol_cursor.cc: net_printf/send_error calls replaced by my_error family functions sql/repl_failsafe.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/repl_failsafe.h: -1/1 (sent/unsent) error reporting removed sql/set_var.cc: net_printf/send_error calls replaced by my_error family functions sql/share/czech/errmsg.txt: new error messages sql/share/danish/errmsg.txt: new error messages sql/share/dutch/errmsg.txt: new error messages sql/share/english/errmsg.txt: new error messages sql/share/estonian/errmsg.txt: new error messages sql/share/french/errmsg.txt: new error messages sql/share/german/errmsg.txt: new error messages sql/share/greek/errmsg.txt: new error messages sql/share/hungarian/errmsg.txt: new error messages sql/share/italian/errmsg.txt: new error messages sql/share/japanese/errmsg.txt: new error messages sql/share/korean/errmsg.txt: new error messages sql/share/norwegian-ny/errmsg.txt: new error messages sql/share/norwegian/errmsg.txt: new error messages sql/share/polish/errmsg.txt: new error messages sql/share/portuguese/errmsg.txt: new error messages sql/share/romanian/errmsg.txt: new error messages sql/share/russian/errmsg.txt: new error messages sql/share/serbian/errmsg.txt: new error messages sql/share/slovak/errmsg.txt: new error messages sql/share/spanish/errmsg.txt: new error messages sql/share/swedish/errmsg.txt: new error messages sql/share/ukrainian/errmsg.txt: new error messages sql/slave.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/slave.h: -1/1 (sent/unsent) error reporting removed sql/sp.cc: net_printf/send_error calls replaced by my_error family functions sql/sp_head.cc: new eror handling support net_printf/send_error calls replaced by my_error family functions sql/sp_rcontext.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_acl.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_acl.h: -1/1 (sent/unsent) error reporting removed sql/sql_base.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_class.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_class.h: my_messhage_sql now set/reset query_error flag sql/sql_db.cc: -1/1 (sent/unsent) error reporting removed sql/sql_delete.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_do.cc: -1/1 (sent/unsent) error reporting removed sql/sql_error.cc: -1/1 (sent/unsent) error reporting removed sql/sql_handler.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_help.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_insert.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_lex.h: -1/1 (sent/unsent) error reporting removed sql/sql_load.cc: -1/1 (sent/unsent) error reporting removed sql/sql_map.cc: errors without code removed sql/sql_parse.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed from mysql_execute_command sql/sql_prepare.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_repl.cc: error messages fixed net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_repl.h: -1/1 (sent/unsent) error reporting removed sql/sql_select.cc: -1/1 (sent/unsent) error reporting removed sql/sql_select.h: -1/1 (sent/unsent) error reporting removed sql/sql_show.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_table.cc: net_printf/send_error calls replaced by my_error family functions -1/1 (sent/unsent) error reporting removed sql/sql_trigger.cc: -1/1 (sent/unsent) error reporting removed sql/sql_udf.cc: net_printf/send_error calls replaced by my_error family functions sql/sql_union.cc: -1/1 (sent/unsent) error reporting removed sql/sql_update.cc: -1/1 (sent/unsent) error reporting removed net_printf/send_error calls replaced by my_error family functions sql/sql_view.cc: -1/1 (sent/unsent) error reporting removed sql/sql_view.h: -1/1 (sent/unsent) error reporting removed sql/sql_yacc.yy: net_printf/send_error calls replaced by my_error family functions
2004-10-20 03:04:37 +02:00
bool change_result(Item_subselect *si, select_subselect *result);
bool no_tables();
};
class subselect_indexsubquery_engine: public subselect_uniquesubquery_engine
{
bool check_null;
public:
// constructor can assign THD because it will be called after JOIN::prepare
subselect_indexsubquery_engine(THD *thd, st_join_table *tab_arg,
Item_subselect *subs, Item *where,
bool chk_null)
:subselect_uniquesubquery_engine(thd, tab_arg, subs, where),
check_null(chk_null)
{}
int exec();
void print (String *str);
};
inline bool Item_subselect::is_evaluated() const
{
return engine->is_executed();
}