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MDEV-6513 deprecate engine_condition_pushdown value of the @@optimizer_switch
* ignore the OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN bit * issue a deprecation warning on 'engine_condition_pushdown=on' * remove unused remains of the old pre-5.5 engine_condition_pushdown variable
This commit is contained in:
Sergei Golubchik
@ -427,6 +427,8 @@ KEY `varchar_key` (`varchar_key`)
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INSERT INTO `t1` VALUES (10,'00:00:00','i','i'),(11,'00:00:00','','');
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set @old_optimizer_switch = @@session.optimizer_switch;
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SET SESSION OPTIMIZER_SWITCH = 'materialization=off,semijoin=off,loosescan=off,firstmatch=off,mrr=on,engine_condition_pushdown=on';
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Warnings:
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Warning 1681 'engine_condition_pushdown=on' is deprecated and will be removed in a future release.
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SELECT `time_nokey` G1 FROM t1 WHERE ( `varchar_nokey` , `varchar_key` ) IN (
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SELECT `varchar_nokey` , `varchar_nokey` ) AND `varchar_key` >= 'c' HAVING G1 ORDER
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BY `pk` ;
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@ -615,6 +617,8 @@ INSERT INTO t2 VALUES (9,1);
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# Enable Index condition pushdown
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set @old_icp=@@optimizer_switch;
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SET SESSION optimizer_switch="engine_condition_pushdown=on";
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Warnings:
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Warning 1681 'engine_condition_pushdown=on' is deprecated and will be removed in a future release.
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SELECT pk
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FROM t2
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@ -1,290 +0,0 @@
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SET @session_start_value = @@session.engine_condition_pushdown;
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SELECT @session_start_value;
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@session_start_value
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0
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SET @global_start_value = @@global.engine_condition_pushdown;
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SELECT @global_start_value;
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@global_start_value
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0
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select @old_session_opt_switch:=@@session.optimizer_switch,
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@old_global_opt_switch:=@@global.optimizer_switch;
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@old_session_opt_switch:=@@session.optimizer_switch @old_global_opt_switch:=@@global.optimizer_switch
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index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
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'#--------------------FN_DYNVARS_028_01------------------------#'
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SET @@session.engine_condition_pushdown = 0;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SET @@session.engine_condition_pushdown = DEFAULT;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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0
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SET @@global.engine_condition_pushdown = 0;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SET @@global.engine_condition_pushdown = DEFAULT;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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1
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'#---------------------FN_DYNVARS_028_02-------------------------#'
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SET engine_condition_pushdown = 1;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@engine_condition_pushdown;
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@@engine_condition_pushdown
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1
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SELECT session.engine_condition_pushdown;
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ERROR 42S02: Unknown table 'session' in field list
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SELECT local.engine_condition_pushdown;
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ERROR 42S02: Unknown table 'local' in field list
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SELECT global.engine_condition_pushdown;
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ERROR 42S02: Unknown table 'global' in field list
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SET session engine_condition_pushdown = 0;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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0
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SET global engine_condition_pushdown = 0;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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0
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'#--------------------FN_DYNVARS_028_03------------------------#'
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SET @@session.engine_condition_pushdown = 0;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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0
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SET @@session.engine_condition_pushdown = 1;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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1
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SET @@global.engine_condition_pushdown = 0;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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0
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SET @@global.engine_condition_pushdown = 1;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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1
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'#--------------------FN_DYNVARS_028_04-------------------------#'
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SET @@session.engine_condition_pushdown = -1;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of '-1'
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SET @@session.engine_condition_pushdown = 1.6;
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ERROR 42000: Incorrect argument type to variable 'engine_condition_pushdown'
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SET @@session.engine_condition_pushdown = "T";
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of 'T'
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SET @@session.engine_condition_pushdown = "Y";
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of 'Y'
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SET @@session.engine_condition_pushdown = TR<54>E;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of 'TR<54>E'
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SET @@session.engine_condition_pushdown = <20>N;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of '<27>N'
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SET @@session.engine_condition_pushdown = OF;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of 'OF'
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SET @@session.engine_condition_pushdown = <20>FF;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of '<27>FF'
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SET @@global.engine_condition_pushdown = -1;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of '-1'
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SET @@global.engine_condition_pushdown = 2;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of '2'
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SET @@global.engine_condition_pushdown = "T";
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of 'T'
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SET @@global.engine_condition_pushdown = "Y";
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of 'Y'
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SET @@global.engine_condition_pushdown = TR<54>E;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of 'TR<54>E'
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SET @@global.engine_condition_pushdown = <20>N;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of '<27>N'
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SET @@global.engine_condition_pushdown = OF;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of 'OF'
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SET @@global.engine_condition_pushdown = <20>FF;
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ERROR 42000: Variable 'engine_condition_pushdown' can't be set to the value of '<27>FF'
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'#-------------------FN_DYNVARS_028_05----------------------------#'
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SET @@global.engine_condition_pushdown = 0;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SET @@session.engine_condition_pushdown = 1;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown AS res_is_0;
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res_is_0
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0
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SET @@global.engine_condition_pushdown = 0;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown AS res_is_1;
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res_is_1
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1
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'#----------------------FN_DYNVARS_028_06------------------------#'
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SELECT IF(@@global.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='engine_condition_pushdown';
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IF(@@global.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE
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1
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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0
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SELECT VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='engine_condition_pushdown';
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VARIABLE_VALUE
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OFF
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'#----------------------FN_DYNVARS_028_07------------------------#'
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SELECT IF(@@session.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.SESSION_VARIABLES
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WHERE VARIABLE_NAME='engine_condition_pushdown';
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IF(@@session.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE
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1
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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1
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SELECT VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.SESSION_VARIABLES
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WHERE VARIABLE_NAME='engine_condition_pushdown';
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VARIABLE_VALUE
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ON
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'#---------------------FN_DYNVARS_028_08-------------------------#'
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SET @@session.engine_condition_pushdown = OFF;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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0
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SET @@session.engine_condition_pushdown = ON;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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1
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SET @@global.engine_condition_pushdown = OFF;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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0
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SET @@global.engine_condition_pushdown = ON;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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1
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'#---------------------FN_DYNVARS_028_09----------------------#'
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SET @@session.engine_condition_pushdown = TRUE;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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1
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SET @@session.engine_condition_pushdown = FALSE;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@session.engine_condition_pushdown;
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@@session.engine_condition_pushdown
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0
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SET @@global.engine_condition_pushdown = TRUE;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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1
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SET @@global.engine_condition_pushdown = FALSE;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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SELECT @@global.engine_condition_pushdown;
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@@global.engine_condition_pushdown
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0
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Check that @@engine_condition_pushdown influences
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@@optimizer_switch and vice-versa
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select @@session.engine_condition_pushdown,
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@@global.engine_condition_pushdown,
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@@session.optimizer_switch, @@global.optimizer_switch;
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@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
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0 0 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
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set @@session.engine_condition_pushdown = TRUE;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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select @@session.engine_condition_pushdown,
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@@global.engine_condition_pushdown,
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@@session.optimizer_switch, @@global.optimizer_switch;
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@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
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1 0 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=on,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
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set @@session.engine_condition_pushdown = FALSE;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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select @@session.engine_condition_pushdown,
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@@global.engine_condition_pushdown,
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@@session.optimizer_switch, @@global.optimizer_switch;
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@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
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0 0 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
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set @@global.engine_condition_pushdown = TRUE;
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Warnings:
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Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
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select @@session.engine_condition_pushdown,
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@@global.engine_condition_pushdown,
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@@session.optimizer_switch, @@global.optimizer_switch;
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@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
|
||||
0 1 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=on,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
|
||||
set @@global.engine_condition_pushdown = FALSE;
|
||||
Warnings:
|
||||
Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
|
||||
select @@session.engine_condition_pushdown,
|
||||
@@global.engine_condition_pushdown,
|
||||
@@session.optimizer_switch, @@global.optimizer_switch;
|
||||
@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
|
||||
0 0 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
|
||||
set @@session.optimizer_switch = "engine_condition_pushdown=on";
|
||||
select @@session.engine_condition_pushdown,
|
||||
@@global.engine_condition_pushdown,
|
||||
@@session.optimizer_switch, @@global.optimizer_switch;
|
||||
@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
|
||||
1 0 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=on,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
|
||||
set @@session.optimizer_switch = "engine_condition_pushdown=off";
|
||||
select @@session.engine_condition_pushdown,
|
||||
@@global.engine_condition_pushdown,
|
||||
@@session.optimizer_switch, @@global.optimizer_switch;
|
||||
@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
|
||||
0 0 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
|
||||
set @@global.optimizer_switch = "engine_condition_pushdown=on";
|
||||
select @@session.engine_condition_pushdown,
|
||||
@@global.engine_condition_pushdown,
|
||||
@@session.optimizer_switch, @@global.optimizer_switch;
|
||||
@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
|
||||
0 1 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=on,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
|
||||
set @@global.optimizer_switch = "engine_condition_pushdown=off";
|
||||
select @@session.engine_condition_pushdown,
|
||||
@@global.engine_condition_pushdown,
|
||||
@@session.optimizer_switch, @@global.optimizer_switch;
|
||||
@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
|
||||
0 0 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
|
||||
SET @@session.engine_condition_pushdown = @session_start_value;
|
||||
Warnings:
|
||||
Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
|
||||
SELECT @@session.engine_condition_pushdown;
|
||||
@@session.engine_condition_pushdown
|
||||
0
|
||||
SET @@global.engine_condition_pushdown = @global_start_value;
|
||||
Warnings:
|
||||
Warning 1287 '@@engine_condition_pushdown' is deprecated and will be removed in a future release. Please use '@@optimizer_switch' instead
|
||||
SELECT @@global.engine_condition_pushdown;
|
||||
@@global.engine_condition_pushdown
|
||||
0
|
||||
set @session.optimizer_switch=@old_session_opt_switch,
|
||||
@@global.optimizer_switch=@old_global_opt_switch;
|
||||
select @@session.engine_condition_pushdown,
|
||||
@@global.engine_condition_pushdown,
|
||||
@@session.optimizer_switch, @@global.optimizer_switch;
|
||||
@@session.engine_condition_pushdown @@global.engine_condition_pushdown @@session.optimizer_switch @@global.optimizer_switch
|
||||
0 0 index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=off
|
||||
@ -53,6 +53,8 @@ select @@session.optimizer_switch;
|
||||
@@session.optimizer_switch
|
||||
index_merge=off,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=off,derived_merge=off,derived_with_keys=off,firstmatch=off,loosescan=off,materialization=off,in_to_exists=off,semijoin=off,partial_match_rowid_merge=off,partial_match_table_scan=off,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=off,join_cache_hashed=off,join_cache_bka=off,optimize_join_buffer_size=off,table_elimination=off,extended_keys=off,exists_to_in=off
|
||||
set optimizer_switch = replace(@@optimizer_switch, '=off', '=on');
|
||||
Warnings:
|
||||
Warning 1681 'engine_condition_pushdown=on' is deprecated and will be removed in a future release.
|
||||
select @@optimizer_switch;
|
||||
@@optimizer_switch
|
||||
index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=on,engine_condition_pushdown=on,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=on,mrr_cost_based=on,mrr_sort_keys=on,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on
|
||||
|
||||
Reference in New Issue
Block a user