WL#5197 "Move @@engine_condition_pushdown to @@optimizer_switch"

"set engine_condition_pushdown" is deprecated, engine condition pushdown is controlled
by a new "set optimizer_switch=engine_condition_pushdown=on|off".

mysql-test/r/index_merge_myisam.result

@@ -1419,19 +1419,19 @@ drop table t1;
 #
 select @@optimizer_switch;
 @@optimizer_switch
-index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 set optimizer_switch='index_merge=off,index_merge_union=off';
 select @@optimizer_switch;
 @@optimizer_switch
-index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 set optimizer_switch='index_merge_union=on';
 select @@optimizer_switch;
 @@optimizer_switch
-index_merge=off,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=off,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 set optimizer_switch='default,index_merge_sort_union=off';
 select @@optimizer_switch;
 @@optimizer_switch
-index_merge=on,index_merge_union=on,index_merge_sort_union=off,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=off,index_merge_intersection=on,engine_condition_pushdown=on
 set optimizer_switch=4;
 set optimizer_switch=NULL;
 ERROR 42000: Variable 'optimizer_switch' can't be set to the value of 'NULL'
@@ -1457,21 +1457,21 @@ set optimizer_switch=default;
 set optimizer_switch='index_merge=off,index_merge_union=off,default';
 select @@optimizer_switch;
 @@optimizer_switch
-index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 set optimizer_switch=default;
 select @@global.optimizer_switch;
 @@global.optimizer_switch
-index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 set @@global.optimizer_switch=default;
 select @@global.optimizer_switch;
 @@global.optimizer_switch
-index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 #
 # Check index_merge's @@optimizer_switch flags
 #
 select @@optimizer_switch;
 @@optimizer_switch
-index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 create table t0 (a int);
 insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
 create table t1 (a int, b int, c int, filler char(100), 
@@ -1581,5 +1581,5 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 set optimizer_switch=default;
 show variables like 'optimizer_switch';
 Variable_name	Value
-optimizer_switch	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+optimizer_switch	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 drop table t0, t1;

mysql-test/r/mysqld--help-notwin.result

@@ -132,7 +132,8 @@ The following options may be given as the first argument:
                       on that value
   --enable-locking    Deprecated option, use --external-locking instead.
   --engine-condition-pushdown 
-                      Push supported query conditions to the storage engine
+                      Push supported query conditions to the storage engine.
+                      Deprecated, use --optimizer-switch instead.
                       (Defaults to on; use --skip-engine-condition-pushdown to disable.)
   --event-scheduler[=name] 
                       Enable the event scheduler. Possible values are ON, OFF,
@@ -413,8 +414,9 @@ The following options may be given as the first argument:
   --optimizer-switch=name 
                       optimizer_switch=option=val[,option=val...], where option
                       is one of {index_merge, index_merge_union,
-                      index_merge_sort_union, index_merge_intersection} and val
-                      is one of {on, off, default}
+                      index_merge_sort_union, index_merge_intersection,
+                      engine_condition_pushdown} and val is one of {on, off,
+                      default}
   --partition[=name]  Enable or disable partition plugin. Possible values are
                       ON, OFF, FORCE (don't start if the plugin fails to load).
   --pid-file=name     Pid file used by safe_mysqld
@@ -853,7 +855,7 @@ old-passwords                       FALSE
 old-style-user-limits               FALSE
 optimizer-prune-level               1
 optimizer-search-depth              62
-optimizer-switch                    index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+optimizer-switch                    index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 partition                           ON
 plugin-dir                          MYSQL_LIBDIR/mysql/plugin
 plugin-load                         (No default value)

mysql-test/r/mysqld--help-win.result

@@ -132,7 +132,8 @@ The following options may be given as the first argument:
                       on that value
   --enable-locking    Deprecated option, use --external-locking instead.
   --engine-condition-pushdown 
-                      Push supported query conditions to the storage engine
+                      Push supported query conditions to the storage engine.
+                      Deprecated, use --optimizer-switch instead.
                       (Defaults to on; use --skip-engine-condition-pushdown to disable.)
   --event-scheduler[=name] 
                       Enable the event scheduler. Possible values are ON, OFF,
@@ -413,8 +414,9 @@ The following options may be given as the first argument:
   --optimizer-switch=name 
                       optimizer_switch=option=val[,option=val...], where option
                       is one of {index_merge, index_merge_union,
-                      index_merge_sort_union, index_merge_intersection} and val
-                      is one of {on, off, default}
+                      index_merge_sort_union, index_merge_intersection,
+                      engine_condition_pushdown} and val is one of {on, off,
+                      default}
   --partition[=name]  Enable or disable partition plugin. Possible values are
                       ON, OFF, FORCE (don't start if the plugin fails to load).
   --pid-file=name     Pid file used by safe_mysqld
@@ -857,7 +859,7 @@ old-passwords                     FALSE
 old-style-user-limits             FALSE
 optimizer-prune-level             1
 optimizer-search-depth            62
-optimizer-switch                  index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+optimizer-switch                  index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 partition                         ON
 plugin-dir                        MYSQL_LIBDIR/plugin
 plugin-load                       (No default value)

mysql-test/r/optimizer_switch_eng_cond_pushdown1.result

+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	1	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on

mysql-test/r/optimizer_switch_eng_cond_pushdown2.result

+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,engine_condition_pushdown=off	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=off

mysql-test/suite/ndb/r/ndb_condition_pushdown.result

@@ -51,8 +51,8 @@ CREATE TABLE  t3 (pk1 int unsigned NOT NULL PRIMARY KEY,   attr1 int unsigned NO
 insert into t3 values (0,0,0,0,"a"),(1,1,9223372036854775803,1,"b"),(2,2,9223372036854775804,2,"c"),(3,3,9223372036854775805,3,"d"),(4,4,9223372036854775806,4,"e"),(5,5,9223372036854775807,5,"f");
 CREATE TABLE  t4 (pk1 int unsigned NOT NULL PRIMARY KEY,   attr1 int unsigned NOT NULL,   attr2 bigint unsigned, attr3 tinyint unsigned,  attr4 VARCHAR(10) , KEY (attr1)) ENGINE=ndbcluster;
 insert into t4 values (0,0,0,0,"a"),(1,1,9223372036854775803,1,"b"),(2,2,9223372036854775804,2,"c"),(3,3,9223372036854775805,3,"d"),(4,4,9223372036854775806,4,"e"),(5,5,9223372036854775807,5,"f");
-set @old_ecpd = @@session.engine_condition_pushdown;
-set engine_condition_pushdown = off;
+set @old_optimizer_switch = @@session.optimizer_switch;
+set optimizer_switch = "engine_condition_pushdown=off";
 select auto from t1 where 
 string = "aaaa" and 
 vstring = "aaaa" and 
@@ -484,7 +484,7 @@ pk1	attr1	attr2	attr3	attr4	pk1	attr1	attr2	attr3	attr4
 2	2	9223372036854775804	2	c	2	2	9223372036854775804	2	c
 3	3	9223372036854775805	3	d	3	3	9223372036854775805	3	d
 4	4	9223372036854775806	4	e	4	4	9223372036854775806	4	e
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 explain
 select auto from t1 where 
 string = "aaaa" and 
@@ -1769,12 +1769,12 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 create table t5 (a int primary key auto_increment, b tinytext not null) 
 engine = ndb;
 insert into t5 (b) values ('jonas'), ('jensing'), ('johan');
-set engine_condition_pushdown = off;
+set optimizer_switch = "engine_condition_pushdown=off";
 select * from t5 where b like '%jo%' order by a;
 a	b
 1	jonas
 3	johan
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 explain select * from t5 where b like '%jo%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t5	ALL	NULL	NULL	NULL	NULL	#	Using where
@@ -1782,7 +1782,7 @@ select * from t5 where b like '%jo%' order by a;
 a	b
 1	jonas
 3	johan
-set engine_condition_pushdown = off;
+set optimizer_switch = "engine_condition_pushdown=off";
 select auto from t1 where date_time like '1902-02-02 %' order by auto;
 auto
 2
@@ -1790,7 +1790,7 @@ select auto from t1 where date_time not like '1902-02-02 %' order by auto;
 auto
 3
 4
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 explain select auto from t1 where date_time like '1902-02-02 %';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	#	Using where
@@ -1808,7 +1808,7 @@ drop table t1;
 create table t1 (a int, b varchar(3), primary key using hash(a))
 engine=ndb;
 insert into t1 values (1,'a'), (2,'ab'), (3,'abc');
-set engine_condition_pushdown = off;
+set optimizer_switch = "engine_condition_pushdown=off";
 select * from t1 where b like 'ab';
 a	b
 2	ab
@@ -1821,7 +1821,7 @@ a	b
 select * from t1 where b like 'abc' or b like 'abc';
 a	b
 3	abc
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 select * from t1 where b like 'ab';
 a	b
 2	ab
@@ -1838,7 +1838,7 @@ drop table t1;
 create table t1 (a int, b char(3), primary key using hash(a))
 engine=ndb;
 insert into t1 values (1,'a'), (2,'ab'), (3,'abc');
-set engine_condition_pushdown = off;
+set optimizer_switch = "engine_condition_pushdown=off";
 select * from t1 where b like 'ab';
 a	b
 2	ab
@@ -1851,7 +1851,7 @@ a	b
 select * from t1 where b like 'abc' or b like 'abc';
 a	b
 3	abc
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 select * from t1 where b like 'ab';
 a	b
 2	ab
@@ -1868,11 +1868,11 @@ drop table t1;
 create table  t1 ( fname varchar(255), lname varchar(255) )
 engine=ndbcluster;
 insert into t1 values ("Young","Foo");
-set engine_condition_pushdown = 0;
+set optimizer_switch = "engine_condition_pushdown=off";
 SELECT fname, lname FROM t1 WHERE (fname like 'Y%') or (lname like 'F%');
 fname	lname
 Young	Foo
-set engine_condition_pushdown = 1;
+set optimizer_switch = "engine_condition_pushdown=on";
 SELECT fname, lname FROM t1 WHERE (fname like 'Y%') or (lname like 'F%');
 fname	lname
 Young	Foo
@@ -1880,11 +1880,11 @@ insert into t1 values ("aaa", "aaa");
 insert into t1 values ("bbb", "bbb");
 insert into t1 values ("ccc", "ccc");
 insert into t1 values ("ddd", "ddd");
-set engine_condition_pushdown = 0;
+set optimizer_switch = "engine_condition_pushdown=off";
 SELECT fname, lname FROM t1 WHERE (fname like 'Y%') or (lname like 'F%');
 fname	lname
 Young	Foo
-set engine_condition_pushdown = 1;
+set optimizer_switch = "engine_condition_pushdown=on";
 SELECT fname, lname FROM t1 WHERE (fname like 'Y%') or (lname like 'F%');
 fname	lname
 Young	Foo
@@ -1896,7 +1896,7 @@ insert into t1 values (20,2,200,0+0x2222);
 insert into t1 values (30,3,300,0+0x3333);
 insert into t1 values (40,4,400,0+0x4444);
 insert into t1 values (50,5,500,0+0x5555);
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 select a,b,d from t1
 where b in (0,1,2,5)
 order by b;
@@ -1916,5 +1916,5 @@ a	b	d
 50	5	21845
 Warnings:
 Warning	4294	Scan filter is too large, discarded
-set engine_condition_pushdown = @old_ecpd;
+set optimizer_switch = @old_optimizer_switch;
 DROP TABLE t1,t2,t3,t4,t5;

mysql-test/suite/ndb/r/ndb_gis.result

@@ -548,7 +548,7 @@ Overlaps(@horiz1, @point2)
 0
 DROP TABLE t1;
 End of 5.0 tests
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 DROP TABLE IF EXISTS t1, gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;
 CREATE TABLE gis_point  (fid INTEGER PRIMARY KEY AUTO_INCREMENT, g POINT);
 CREATE TABLE gis_line  (fid INTEGER PRIMARY KEY AUTO_INCREMENT, g LINESTRING);

mysql-test/suite/ndb/r/ndb_index_unique.result

@@ -181,8 +181,8 @@ a	b	c
 5	5	NULL
 8	3	NULL
 9	3	NULL
-set @old_ecpd = @@session.engine_condition_pushdown;
-set engine_condition_pushdown = true;
+set @old_optimizer_switch = @@session.optimizer_switch;
+set optimizer_switch = "engine_condition_pushdown=on";
 explain select * from t2 where (b = 3 OR b = 5) AND c IS NULL AND a < 9 order by a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	PRIMARY,b	PRIMARY	4	NULL	1	Using where with pushed condition
@@ -191,7 +191,7 @@ a	b	c
 3	3	NULL
 5	5	NULL
 8	3	NULL
-set engine_condition_pushdown = @old_ecpd;
+set optimizer_switch = @old_optimizer_switch;
 drop table t2;
 CREATE TABLE t3 (
 a int unsigned NOT NULL,

mysql-test/suite/ndb/t/ndb_condition_pushdown.test

@@ -68,8 +68,8 @@ CREATE TABLE  t4 (pk1 int unsigned NOT NULL PRIMARY KEY,   attr1 int unsigned NO
 
 insert into t4 values (0,0,0,0,"a"),(1,1,9223372036854775803,1,"b"),(2,2,9223372036854775804,2,"c"),(3,3,9223372036854775805,3,"d"),(4,4,9223372036854775806,4,"e"),(5,5,9223372036854775807,5,"f");
 
-set @old_ecpd = @@session.engine_condition_pushdown;
-set engine_condition_pushdown = off;
+set @old_optimizer_switch = @@session.optimizer_switch;
+set optimizer_switch = "engine_condition_pushdown=off";
 
 # Test all types and compare operators
 select auto from t1 where 
@@ -453,7 +453,7 @@ select * from t2,t3 where t2.attr1 < 1 and t2.attr2 = t3.attr2 and t3.attr1 < 5
 select * from t4 where attr1 < 5 and attr2 > 9223372036854775803 and attr3 != 3 order by t4.pk1;
 select * from t3,t4 where t4.attr1 > 1 and t4.attr2 = t3.attr2 and t4.attr3 < 5 order by t4.pk1;
 
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 
 # Test all types and compare operators
 --replace_column 9 #
@@ -1674,18 +1674,18 @@ select * from t3 left join t4 on t4.attr2 = t3.attr2 where t4.attr1 > 1 and t4.a
 create table t5 (a int primary key auto_increment, b tinytext not null) 
 engine = ndb;
 insert into t5 (b) values ('jonas'), ('jensing'), ('johan');
-set engine_condition_pushdown = off;
+set optimizer_switch = "engine_condition_pushdown=off";
 select * from t5 where b like '%jo%' order by a;
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 --replace_column 9 #
 explain select * from t5 where b like '%jo%';
 select * from t5 where b like '%jo%' order by a;
 
 # bug#21056  	ndb pushdown equal/setValue error on datetime
-set engine_condition_pushdown = off;
+set optimizer_switch = "engine_condition_pushdown=off";
 select auto from t1 where date_time like '1902-02-02 %' order by auto;
 select auto from t1 where date_time not like '1902-02-02 %' order by auto;
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 --replace_column 9 #
 explain select auto from t1 where date_time like '1902-02-02 %';
 select auto from t1 where date_time like '1902-02-02 %' order by auto;
@@ -1701,12 +1701,12 @@ insert into t1 values (1,'a'), (2,'ab'), (3,'abc');
 # in TUP the constants 'ab' 'abc' were expected in varchar format
 # "like" returned error which became "false"
 # scan filter negates "or" which exposes the bug
-set engine_condition_pushdown = off;
+set optimizer_switch = "engine_condition_pushdown=off";
 select * from t1 where b like 'ab';
 select * from t1 where b like 'ab' or b like 'ab';
 select * from t1 where b like 'abc';
 select * from t1 where b like 'abc' or b like 'abc';
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 select * from t1 where b like 'ab';
 select * from t1 where b like 'ab' or b like 'ab';
 select * from t1 where b like 'abc';
@@ -1719,12 +1719,12 @@ engine=ndb;
 insert into t1 values (1,'a'), (2,'ab'), (3,'abc');
 # test that incorrect MySQL behaviour is preserved
 # 'ab ' LIKE 'ab' is true in MySQL
-set engine_condition_pushdown = off;
+set optimizer_switch = "engine_condition_pushdown=off";
 select * from t1 where b like 'ab';
 select * from t1 where b like 'ab' or b like 'ab';
 select * from t1 where b like 'abc';
 select * from t1 where b like 'abc' or b like 'abc';
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 select * from t1 where b like 'ab';
 select * from t1 where b like 'ab' or b like 'ab';
 select * from t1 where b like 'abc';
@@ -1736,9 +1736,9 @@ create table  t1 ( fname varchar(255), lname varchar(255) )
 engine=ndbcluster;
 insert into t1 values ("Young","Foo");
 
-set engine_condition_pushdown = 0;
+set optimizer_switch = "engine_condition_pushdown=off";
 SELECT fname, lname FROM t1 WHERE (fname like 'Y%') or (lname like 'F%');
-set engine_condition_pushdown = 1;
+set optimizer_switch = "engine_condition_pushdown=on";
 SELECT fname, lname FROM t1 WHERE (fname like 'Y%') or (lname like 'F%');
 
 # make sure optimizer does not do some crazy shortcut
@@ -1747,9 +1747,9 @@ insert into t1 values ("bbb", "bbb");
 insert into t1 values ("ccc", "ccc");
 insert into t1 values ("ddd", "ddd");
 
-set engine_condition_pushdown = 0;
+set optimizer_switch = "engine_condition_pushdown=off";
 SELECT fname, lname FROM t1 WHERE (fname like 'Y%') or (lname like 'F%');
-set engine_condition_pushdown = 1;
+set optimizer_switch = "engine_condition_pushdown=on";
 SELECT fname, lname FROM t1 WHERE (fname like 'Y%') or (lname like 'F%');
 
 # bug#29390 (scan filter is too large, discarded)
@@ -1766,7 +1766,7 @@ insert into t1 values (30,3,300,0+0x3333);
 insert into t1 values (40,4,400,0+0x4444);
 insert into t1 values (50,5,500,0+0x5555);
 
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 
 select a,b,d from t1
     where b in (0,1,2,5)
@@ -2050,5 +2050,5 @@ select a,b,d from t1
     order by b;
 --enable_query_log
 
-set engine_condition_pushdown = @old_ecpd;
+set optimizer_switch = @old_optimizer_switch;
 DROP TABLE t1,t2,t3,t4,t5;

mysql-test/suite/ndb/t/ndb_gis.test

 --source include/have_ndb.inc
 SET storage_engine=ndbcluster;
 --source include/gis_generic.inc
-set engine_condition_pushdown = on;
+set optimizer_switch = "engine_condition_pushdown=on";
 --source include/gis_generic.inc

mysql-test/suite/ndb/t/ndb_index_unique.test

@@ -112,11 +112,11 @@ insert t2 values(1,1,NULL),(2,2,2),(3,3,NULL),(4,4,4),(5,5,NULL),(6,6,6),(7,7,NU
 select * from t2 where c IS NULL order by a;
 select * from t2 where b = 3 AND c IS NULL order by a;
 select * from t2 where (b = 3 OR b = 5) AND c IS NULL order by a;
-set @old_ecpd = @@session.engine_condition_pushdown;
-set engine_condition_pushdown = true;
+set @old_optimizer_switch = @@session.optimizer_switch;
+set optimizer_switch = "engine_condition_pushdown=on";
 explain select * from t2 where (b = 3 OR b = 5) AND c IS NULL AND a < 9 order by a;
 select * from t2 where (b = 3 OR b = 5) AND c IS NULL AND a < 9 order by a;
-set engine_condition_pushdown = @old_ecpd;
+set optimizer_switch = @old_optimizer_switch;
 
 drop table t2;
 

mysql-test/suite/sys_vars/r/optimizer_switch_basic.result

 SET @start_global_value = @@global.optimizer_switch;
 SELECT @start_global_value;
 @start_global_value
-index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 select @@global.optimizer_switch;
 @@global.optimizer_switch
-index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 select @@session.optimizer_switch;
 @@session.optimizer_switch
-index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 show global variables like 'optimizer_switch';
 Variable_name	Value
-optimizer_switch	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+optimizer_switch	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 show session variables like 'optimizer_switch';
 Variable_name	Value
-optimizer_switch	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+optimizer_switch	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 select * from information_schema.global_variables where variable_name='optimizer_switch';
 VARIABLE_NAME	VARIABLE_VALUE
-OPTIMIZER_SWITCH	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+OPTIMIZER_SWITCH	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 select * from information_schema.session_variables where variable_name='optimizer_switch';
 VARIABLE_NAME	VARIABLE_VALUE
-OPTIMIZER_SWITCH	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+OPTIMIZER_SWITCH	index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
 set global optimizer_switch=10;
 select @@global.optimizer_switch;
 @@global.optimizer_switch
-index_merge=off,index_merge_union=on,index_merge_sort_union=off,index_merge_intersection=on
+index_merge=off,index_merge_union=on,index_merge_sort_union=off,index_merge_intersection=on,engine_condition_pushdown=off
 set session optimizer_switch=5;
 select @@session.optimizer_switch;
 @@session.optimizer_switch
-index_merge=on,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=off
+index_merge=on,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=off,engine_condition_pushdown=off
 set global optimizer_switch="index_merge_sort_union=on";
 select @@global.optimizer_switch;
 @@global.optimizer_switch
-index_merge=off,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=off,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=off
 set session optimizer_switch="index_merge=off";
 select @@session.optimizer_switch;
 @@session.optimizer_switch
-index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=off
+index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=off,engine_condition_pushdown=off
 set session optimizer_switch="default";
 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=off,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=off
 set global optimizer_switch=1.1;
 ERROR 42000: Incorrect argument type to variable 'optimizer_switch'
 set global optimizer_switch=1e1;
@@ -51,4 +51,4 @@ ERROR 42000: Variable 'optimizer_switch' can't be set to the value of 'foobar'
 SET @@global.optimizer_switch = @start_global_value;
 SELECT @@global.optimizer_switch;
 @@global.optimizer_switch
-index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
+index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on

mysql-test/suite/sys_vars/t/engine_condition_pushdown_basic.test

@@ -40,6 +40,10 @@ SELECT @session_start_value;
 SET @global_start_value = @@global.engine_condition_pushdown;
 SELECT @global_start_value;
 
+# same for optimizer_switch
+select @old_session_opt_switch:=@@session.optimizer_switch,
+@old_global_opt_switch:=@@global.optimizer_switch;
+
 --echo '#--------------------FN_DYNVARS_028_01------------------------#'
 ######################################################################## 
 #           Display the DEFAULT value of engine_condition_pushdown     #
@@ -204,6 +208,44 @@ SELECT @@global.engine_condition_pushdown;
 SET @@global.engine_condition_pushdown = FALSE;
 SELECT @@global.engine_condition_pushdown;
 
+--echo Check that @@engine_condition_pushdown influences
+--echo @@optimizer_switch and vice-versa
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+set @@session.engine_condition_pushdown = TRUE;
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+set @@session.engine_condition_pushdown = FALSE;
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+set @@global.engine_condition_pushdown = TRUE;
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+set @@global.engine_condition_pushdown = FALSE;
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+set @@session.optimizer_switch = "engine_condition_pushdown=on";
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+set @@session.optimizer_switch = "engine_condition_pushdown=off";
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+set @@global.optimizer_switch = "engine_condition_pushdown=on";
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+set @@global.optimizer_switch = "engine_condition_pushdown=off";
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;
+
 ##############################  
 #   Restore initial value    #
 ##############################
@@ -214,6 +256,12 @@ SELECT @@session.engine_condition_pushdown;
 SET @@global.engine_condition_pushdown = @global_start_value;
 SELECT @@global.engine_condition_pushdown;
 
+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;
+
 ###############################################################
 #                    END OF engine_condition_pushdown TESTS   #
 ############################################################### 

mysql-test/t/optimizer_switch_eng_cond_pushdown1-master.opt

+--optimizer-switch=engine_condition_pushdown=off --engine-condition-pushdown=1

mysql-test/t/optimizer_switch_eng_cond_pushdown1.test

+# check how --engine-condition-pushdown and --optimizer-switch
+# influence each other when used together (last wins).
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;

mysql-test/t/optimizer_switch_eng_cond_pushdown2-master.opt

+--engine-condition-pushdown=1 --optimizer-switch=engine_condition_pushdown=off

mysql-test/t/optimizer_switch_eng_cond_pushdown2.test

+# check how --engine-condition-pushdown and --optimizer-switch
+# influence each other when used together (last wins).
+select @@session.engine_condition_pushdown,
+@@global.engine_condition_pushdown,
+@@session.optimizer_switch, @@global.optimizer_switch;

sql/mysql_priv.h

@@ -622,17 +622,19 @@ class Default_object_creation_ctx : public Object_creation_ctx
 #define MODE_PAD_CHAR_TO_FULL_LENGTH    (ULL(1) << 31)
 
 /* @@optimizer_switch flags. These must be in sync with optimizer_switch_typelib */
-#define OPTIMIZER_SWITCH_INDEX_MERGE 1
-#define OPTIMIZER_SWITCH_INDEX_MERGE_UNION 2
-#define OPTIMIZER_SWITCH_INDEX_MERGE_SORT_UNION 4
-#define OPTIMIZER_SWITCH_INDEX_MERGE_INTERSECT 8
-#define OPTIMIZER_SWITCH_LAST 16
+#define OPTIMIZER_SWITCH_INDEX_MERGE               (1ULL << 0)
+#define OPTIMIZER_SWITCH_INDEX_MERGE_UNION         (1ULL << 1)
+#define OPTIMIZER_SWITCH_INDEX_MERGE_SORT_UNION    (1ULL << 2)
+#define OPTIMIZER_SWITCH_INDEX_MERGE_INTERSECT     (1ULL << 3)
+#define OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN (1ULL << 4)
+#define OPTIMIZER_SWITCH_LAST                      (1ULL << 5)
 
 /* The following must be kept in sync with optimizer_switch_str in mysqld.cc */
 #define OPTIMIZER_SWITCH_DEFAULT (OPTIMIZER_SWITCH_INDEX_MERGE | \
                                   OPTIMIZER_SWITCH_INDEX_MERGE_UNION | \
                                   OPTIMIZER_SWITCH_INDEX_MERGE_SORT_UNION | \
-                                  OPTIMIZER_SWITCH_INDEX_MERGE_INTERSECT)
+                                  OPTIMIZER_SWITCH_INDEX_MERGE_INTERSECT | \
+                                  OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN)
 
 
 /*
@@ -2636,7 +2638,8 @@ enum options_mysqld
   OPT_SSL_CIPHER,
   OPT_SSL_KEY,
   OPT_UPDATE_LOG,
-  OPT_WANT_CORE
+  OPT_WANT_CORE,
+  OPT_ENGINE_CONDITION_PUSHDOWN
 };
 
 #endif /* MYSQL_SERVER */

sql/mysqld.cc

@@ -6995,6 +6995,18 @@ mysqld_get_one_option(int optid,
     }
     break;
 #endif /* defined(ENABLED_DEBUG_SYNC) */
+  case OPT_ENGINE_CONDITION_PUSHDOWN:
+    /*
+      The last of --engine-condition-pushdown and --optimizer_switch on
+      command line wins (see get_options().
+    */
+    if (global_system_variables.engine_condition_pushdown)
+      global_system_variables.optimizer_switch|=
+        OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN;
+    else
+      global_system_variables.optimizer_switch&=
+        ~OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN;
+    break;
   }
   return 0;
 }
@@ -7216,6 +7228,11 @@ static int get_options(int *argc,char **argv)
   else
     pool_of_threads_scheduler(&thread_scheduler);  /* purecov: tested */
 #endif
+
+  global_system_variables.engine_condition_pushdown=
+    test(global_system_variables.optimizer_switch &
+         OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN);
+
   return 0;
 }
 

sql/records.cc

@@ -270,7 +270,8 @@ void init_read_record(READ_RECORD *info,THD *thd, TABLE *table,
 				  thd->variables.read_buff_size);
   }
   /* Condition pushdown to storage engine */
-  if (thd->variables.engine_condition_pushdown && 
+  if ((thd->variables.optimizer_switch &
+       OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) && 
       select && select->cond && 
       (select->cond->used_tables() & table->map) &&
       !table->file->pushed_cond)

sql/sql_select.cc

@@ -6347,7 +6347,8 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
           /* Push condition to storage engine if this is enabled
              and the condition is not guarded */
           tab->table->file->pushed_cond= NULL;
-	  if (thd->variables.engine_condition_pushdown)
+	  if (thd->variables.optimizer_switch &
+              OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN)
           {
             COND *push_cond= 
               make_cond_for_table(tmp, current_map, current_map);
@@ -16630,7 +16631,8 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
           {
             const COND *pushed_cond= tab->table->file->pushed_cond;
 
-            if (thd->variables.engine_condition_pushdown && pushed_cond)
+            if ((thd->variables.optimizer_switch &
+                 OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) && pushed_cond)
             {
               extra.append(STRING_WITH_LEN("; Using where with pushed "
                                            "condition"));

sql/sys_vars.cc

@@ -1114,16 +1114,28 @@ static Sys_var_ulong Sys_optimizer_search_depth(
 static const char *optimizer_switch_names[]=
 {
   "index_merge", "index_merge_union", "index_merge_sort_union",
-  "index_merge_intersection",
+  "index_merge_intersection", "engine_condition_pushdown",
   "default", NullS
 };
+/** propagates changes to @@engine_condition_pushdown */
+static bool fix_optimizer_switch(sys_var *self, THD *thd,
+                                 enum_var_type type)
+{
+  SV *sv= (type == OPT_GLOBAL) ? &global_system_variables : &thd->variables;
+  sv->engine_condition_pushdown= 
+    test(sv->optimizer_switch & OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN);
+  return false;
+}
 static Sys_var_flagset Sys_optimizer_switch(
        "optimizer_switch",
        "optimizer_switch=option=val[,option=val...], where option is one of "
        "{index_merge, index_merge_union, index_merge_sort_union, "
-       "index_merge_intersection} and val is one of {on, off, default}",
+       "index_merge_intersection, engine_condition_pushdown}"
+       " and val is one of {on, off, default}",
        SESSION_VAR(optimizer_switch), CMD_LINE(REQUIRED_ARG),
-       optimizer_switch_names, DEFAULT(OPTIMIZER_SWITCH_DEFAULT));
+       optimizer_switch_names, DEFAULT(OPTIMIZER_SWITCH_DEFAULT),
+       NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(NULL),
+       ON_UPDATE(fix_optimizer_switch));
 
 static Sys_var_charptr Sys_pid_file(
        "pid_file", "Pid file used by safe_mysqld",
@@ -1820,11 +1832,26 @@ static Sys_var_ulong Sys_net_wait_timeout(
        VALID_RANGE(1, IF_WIN(INT_MAX32/1000, LONG_TIMEOUT)),
        DEFAULT(NET_WAIT_TIMEOUT), BLOCK_SIZE(1));
 
+/** propagates changes to the relevant flag of @@optimizer_switch */
+static bool fix_engine_condition_pushdown(sys_var *self, THD *thd,
+                                          enum_var_type type)
+{
+  SV *sv= (type == OPT_GLOBAL) ? &global_system_variables : &thd->variables;
+  if (sv->engine_condition_pushdown)
+    sv->optimizer_switch|= OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN;
+  else
+    sv->optimizer_switch&= ~OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN;
+  return false;
+}
 static Sys_var_mybool Sys_engine_condition_pushdown(
        "engine_condition_pushdown",
-       "Push supported query conditions to the storage engine",
-       SESSION_VAR(engine_condition_pushdown), CMD_LINE(OPT_ARG),
-       DEFAULT(TRUE));
+       "Push supported query conditions to the storage engine."
+       " Deprecated, use --optimizer-switch instead.",
+       SESSION_VAR(engine_condition_pushdown),
+       CMD_LINE(OPT_ARG, OPT_ENGINE_CONDITION_PUSHDOWN),
+       DEFAULT(TRUE), NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(NULL),
+       ON_UPDATE(fix_engine_condition_pushdown),
+       DEPRECATED(70000, "'@@optimizer_switch'"));
 
 static Sys_var_plugin Sys_default_storage_engine(
        "default_storage_engine", "The default storage engine for new tables",