Merge remote-tracking branch 'origin/10.2' into bb-10.2-ext

22 files changed, 792 insertions, 33 deletions

diff --git a/mysql-test/r/alter_table_online.result b/mysql-test/r/alter_table_online.result
index b3ef9c354f7..54df4e0c96c 100644
--- a/mysql-test/r/alter_table_online.result
+++ b/mysql-test/r/alter_table_online.result
@@ -184,6 +184,35 @@ CREATE TABLE t1 (a LONGTEXT COLLATE latin1_general_ci);
 ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
 ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
 DROP TABLE t1;
-#
-# End of MDEV-8948 ALTER ... INPLACE does work for BINARY, BLOB
-#
+select @@global.delay_key_write;
+@@global.delay_key_write
+ON
+create table t1 (a int, b int, key(b));
+flush tables;
+flush status;
+show status like 'Feature_delay_key_write';
+Variable_name	Value
+Feature_delay_key_write	0
+insert t1 values (1,2),(2,3),(3,4);
+show status like 'Feature_delay_key_write';
+Variable_name	Value
+Feature_delay_key_write	0
+alter online table t1 delay_key_write=1;
+show status like 'Feature_delay_key_write';
+Variable_name	Value
+Feature_delay_key_write	1
+flush tables;
+insert t1 values (1,2),(2,3),(3,4);
+show status like 'Feature_delay_key_write';
+Variable_name	Value
+Feature_delay_key_write	2
+alter online table t1 delay_key_write=0;
+show status like 'Feature_delay_key_write';
+Variable_name	Value
+Feature_delay_key_write	2
+flush tables;
+insert t1 values (1,2),(2,3),(3,4);
+show status like 'Feature_delay_key_write';
+Variable_name	Value
+Feature_delay_key_write	2
+drop table t1;
diff --git a/mysql-test/r/analyze_format_json.result b/mysql-test/r/analyze_format_json.result
index e5edc1e344b..e077f919aa0 100644
--- a/mysql-test/r/analyze_format_json.result
+++ b/mysql-test/r/analyze_format_json.result
@@ -614,22 +614,24 @@ ANALYZE
     },
     "block-nl-join": {
       "table": {
-        "table_name": "<subquery2>",
+        "table_name": "t2",
         "access_type": "ALL",
-        "possible_keys": ["distinct_key"],
         "r_loops": 1,
         "rows": 2,
         "r_rows": 2,
         "r_total_time_ms": "REPLACED",
         "filtered": 100,
-        "r_filtered": 100
+        "r_filtered": 0,
+        "attached_condition": "<in_optimizer>(t2.b,t2.b in (subquery#2))"
       },
       "buffer_type": "flat",
       "buffer_size": "256Kb",
       "join_type": "BNL",
-      "r_filtered": 100,
-      "materialized": {
-        "unique": 1,
+      "attached_condition": "<in_optimizer>(t2.b,t2.b in (subquery#2))",
+      "r_filtered": null
+    },
+    "subqueries": [
+      {
         "query_block": {
           "select_id": 2,
           "r_loops": 1,
@@ -646,24 +648,7 @@ ANALYZE
           }
         }
       }
-    },
-    "block-nl-join": {
-      "table": {
-        "table_name": "t2",
-        "access_type": "ALL",
-        "r_loops": 1,
-        "rows": 2,
-        "r_rows": 2,
-        "r_total_time_ms": "REPLACED",
-        "filtered": 100,
-        "r_filtered": 100
-      },
-      "buffer_type": "incremental",
-      "buffer_size": "256Kb",
-      "join_type": "BNL",
-      "attached_condition": "t2.b = `<subquery2>`.a",
-      "r_filtered": 0
-    }
+    ]
   }
 }
 drop table t1,t2;
diff --git a/mysql-test/r/cte_nonrecursive.result b/mysql-test/r/cte_nonrecursive.result
index 317d8bd05df..262b49e9a60 100644
--- a/mysql-test/r/cte_nonrecursive.result
+++ b/mysql-test/r/cte_nonrecursive.result
@@ -507,6 +507,7 @@ select t.a, count(*) from t1,t where t1.a=t.a  group by t.a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using temporary; Using filesort
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	35	func	1	
 3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
 3	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
 explain
@@ -522,6 +523,7 @@ where t1.a=t.a  group by t.a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using temporary; Using filesort
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	35	func	1	
 3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
 3	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
 # with clause in the specification of a derived table
diff --git a/mysql-test/r/derived_view.result b/mysql-test/r/derived_view.result
index e986b486bf2..deba9b1f09a 100644
--- a/mysql-test/r/derived_view.result
+++ b/mysql-test/r/derived_view.result
@@ -2916,5 +2916,64 @@ Handler_read_rnd_deleted	0
 Handler_read_rnd_next	27
 deallocate prepare stmt1;
 drop table t1,t2;
+#
+# Bug mdev-12670: mergeable derived / view with subqueries
+#                 subject to semi-join optimizations
+# (actually this is a 5.3 bug.)               
+#
+create table t1 (a int) engine=myisam;
+insert into t1  values (5),(3),(2),(7),(2),(5),(1);
+create table t2 (b int, index idx(b)) engine=myisam;
+insert into t2 values (2),(3),(2),(1),(3),(4);
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+analyze table t1,t2;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	OK
+test.t2	analyze	status	OK
+explain select a from t1 where a in (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	Using where
+1	PRIMARY	t2	ref	idx	idx	5	test.t1.a	140	Using index; FirstMatch(t1)
+explain select * from (select a from t1 where a in (select b from t2)) t;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	Using where
+1	PRIMARY	t2	ref	idx	idx	5	test.t1.a	140	Using index; FirstMatch(t1)
+create view v1 as select a from t1 where a in (select b from t2);
+explain select * from v1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	Using where
+1	PRIMARY	t2	ref	idx	idx	5	test.t1.a	140	Using index; FirstMatch(t1)
+drop view v1;
+drop table t1,t2;
+#
+# Bug mdev-12812: mergeable derived / view with subqueries
+#                 NOT subject to semi-join optimizations
+#
+CREATE TABLE t1 (c1 varchar(3)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('foo'),('foo');
+CREATE TABLE t2 (c2 varchar(3)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('bar'),('qux'),('foo');
+SELECT STRAIGHT_JOIN * 
+FROM ( SELECT * FROM t1 WHERE c1 IN ( SELECT c2 FROM t2 ) ) AS sq;
+c1
+foo
+foo
+EXPLAIN EXTENDED SELECT STRAIGHT_JOIN * 
+FROM ( SELECT * FROM t1 WHERE c1 IN ( SELECT c2 FROM t2 ) ) AS sq;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+3	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+Warnings:
+Note	1003	/* select#1 */ select straight_join `test`.`t1`.`c1` AS `c1` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`c1`,<exists>(/* select#3 */ select `test`.`t2`.`c2` from `test`.`t2` where <cache>(`test`.`t1`.`c1`) = `test`.`t2`.`c2`))
+DROP TABLE t1, t2;
 set optimizer_switch=@exit_optimizer_switch;
 set join_cache_level=@exit_join_cache_level;
diff --git a/mysql-test/r/func_regexp_pcre.result b/mysql-test/r/func_regexp_pcre.result
index 18aa7ed8379..266ea6c5eef 100644
--- a/mysql-test/r/func_regexp_pcre.result
+++ b/mysql-test/r/func_regexp_pcre.result
@@ -880,3 +880,17 @@ SET @regCheck= '\\xE0\\x01';
 SELECT CAST(0xE001 AS BINARY) REGEXP @regCheck;
 CAST(0xE001 AS BINARY) REGEXP @regCheck
 1
+# MDEV-12420: Testing recursion overflow
+SELECT 1 FROM dual WHERE ('Alpha,Bravo,Charlie,Delta,Echo,Foxtrot,StrataCentral,Golf,Hotel,India,Juliet,Kilo,Lima,Mike,StrataL3,November,Oscar,StrataL2,Sand,P3,P4SwitchTest,Arsys,Poppa,ExtensionMgr,Arp,Quebec,Romeo,StrataApiV2,PtReyes,Sierra,SandAcl,Arrow,Artools,BridgeTest,Tango,SandT,PAlaska,Namespace,Agent,Qos,PatchPanel,ProjectReport,Ark,Gimp,Agent,SliceAgent,Arnet,Bgp,Ale,Tommy,Central,AsicPktTestLib,Hsc,SandL3,Abuild,Pca9555,Standby,ControllerDut,CalSys,SandLib,Sb820,PointV2,BfnLib,Evpn,BfnSdk,Sflow,ManagementActive,AutoTest,GatedTest,Bgp,Sand,xinetd,BfnAgentLib,bf-utils,Hello,BfnState,Eos,Artest,Qos,Scd,ThermoMgr,Uniform,EosUtils,Eb,FanController,Central,BfnL3,BfnL2,tcp_wrappers,Victor,Environment,Route,Failover,Whiskey,Xray,Gimp,BfnFixed,Strata,SoCal,XApi,Msrp,XpProfile,tcpdump,PatchPanel,ArosTest,FhTest,Arbus,XpAcl,MacConc,XpApi,telnet,QosTest,Alpha2,BfnVlan,Stp,VxlanControllerTest,MplsAgent,Bravo2,Lanz,BfnMbb,Intf,XCtrl,Unicast,SandTunnel,L3Unicast,Ipsec,MplsTest,Rsvp,EthIntf,StageMgr,Sol,MplsUtils,Nat,Ira,P4NamespaceDut,Counters,Charlie2,Aqlc,Mlag,Power,OpenFlow,Lag,RestApi,BfdTest,strongs,Sfa,CEosUtils,Adt746,MaintenanceMode,MlagDut,EosImage,IpEth,MultiProtocol,Launcher,Max3179,Snmp,Acl,IpEthTest,PhyEee,bf-syslibs,tacc,XpL2,p4-ar-switch,p4-bf-switch,LdpTest,BfnPhy,Mirroring,Phy6,Ptp'  REGEXP '^((?!\b(Strata|StrataApi|StrataApiV2)\b).)*$');
+1
+Warnings:
+Warning	1139	Got error 'pcre_exec: recursion limit of NUM exceeded' from regexp
+SELECT REGEXP_INSTR('a_kollision', 'oll');
+REGEXP_INSTR('a_kollision', 'oll')
+4
+SELECT REGEXP_INSTR('a_kollision', '(oll)');
+REGEXP_INSTR('a_kollision', '(oll)')
+4
+SELECT REGEXP_INSTR('a_kollision', 'o([lm])\\1');
+REGEXP_INSTR('a_kollision', 'o([lm])\\1')
+4
diff --git a/mysql-test/r/innodb_ext_key.result b/mysql-test/r/innodb_ext_key.result
index 1305be86e5a..c55e8d138f8 100644
--- a/mysql-test/r/innodb_ext_key.result
+++ b/mysql-test/r/innodb_ext_key.result
@@ -1133,5 +1133,78 @@ where index_date_updated= 10 and index_id < 800;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	index_date_updated	index_date_updated	13	NULL	#	Using index condition
 drop table t0,t1,t2;
-set optimizer_switch=@save_ext_key_optimizer_switch;
-SET SESSION STORAGE_ENGINE=DEFAULT;
+#
+# MDEV-11196: Error:Run-Time Check Failure #2 - Stack around the variable 'key_buff'
+# was corrupted, server crashes in opt_sum_query
+CREATE TABLE t1 (
+pk INT,
+f1 VARCHAR(3),
+f2 VARCHAR(1024),
+PRIMARY KEY (pk),
+KEY(f2)
+) ENGINE=InnoDB CHARSET utf8 ROW_FORMAT= DYNAMIC;
+INSERT INTO t1 VALUES (1,'foo','abc'),(2,'bar','def');
+SELECT MAX(t2.pk) FROM t1 t2 INNER JOIN t1 t3 ON t2.f1 = t3.f1 WHERE t2.pk <= 4;
+MAX(t2.pk)
+2
+drop table t1;
+CREATE TABLE t1 (
+pk1 INT,
+pk2 INT,
+f1 VARCHAR(3),
+f2 VARCHAR(1021),
+PRIMARY KEY (pk1,pk2),
+KEY(f2)
+) ENGINE=InnoDB CHARSET utf8 ROW_FORMAT= DYNAMIC;
+INSERT INTO t1 VALUES (1,2,'2','abc'),(2,3,'3','def');
+explain format= json
+select * from t1 force index(f2)  where pk1 <= 5 and pk2 <=5 and f2 = 'abc' and f1 <= '3';
+EXPLAIN
+{
+  "query_block": {
+    "select_id": 1,
+    "table": {
+      "table_name": "t1",
+      "access_type": "range",
+      "possible_keys": ["f2"],
+      "key": "f2",
+      "key_length": "3070",
+      "used_key_parts": ["f2", "pk1"],
+      "rows": 1,
+      "filtered": 100,
+      "index_condition": "t1.pk1 <= 5 and t1.pk2 <= 5 and t1.f2 = 'abc'",
+      "attached_condition": "t1.f1 <= '3'"
+    }
+  }
+}
+drop table t1;
+CREATE TABLE t1 (
+f2 INT,
+pk2 INT,
+f1 VARCHAR(3),
+pk1 VARCHAR(1000),
+PRIMARY KEY (pk1,pk2),
+KEY k1(pk1,f2)
+) ENGINE=InnoDB CHARSET utf8 ROW_FORMAT= DYNAMIC;
+INSERT INTO t1 VALUES (1,2,'2','abc'),(2,3,'3','def');
+explain format= json
+select * from t1 force index(k1)  where f2 <= 5 and pk2 <=5 and pk1 = 'abc' and f1 <= '3';
+EXPLAIN
+{
+  "query_block": {
+    "select_id": 1,
+    "table": {
+      "table_name": "t1",
+      "access_type": "range",
+      "possible_keys": ["k1"],
+      "key": "k1",
+      "key_length": "3011",
+      "used_key_parts": ["pk1", "f2", "pk2"],
+      "rows": 1,
+      "filtered": 100,
+      "index_condition": "t1.f2 <= 5 and t1.pk2 <= 5 and t1.pk1 = 'abc'",
+      "attached_condition": "t1.f1 <= '3'"
+    }
+  }
+}
+drop table t1;
diff --git a/mysql-test/r/join_outer.result b/mysql-test/r/join_outer.result
index d7b4e107a8d..46e542910a1 100644
--- a/mysql-test/r/join_outer.result
+++ b/mysql-test/r/join_outer.result
@@ -2337,4 +2337,99 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 Warnings:
 Note	1003	select `test`.`t1`.`i1` AS `i1`,`test`.`t1`.`v1` AS `v1`,`test`.`t2`.`i2` AS `i2`,`test`.`t2`.`v2` AS `v2`,`test`.`t3`.`i3` AS `i3`,`test`.`t3`.`v3` AS `v3` from `test`.`t1` join `test`.`t2` join `test`.`t3` where `test`.`t3`.`v3` = 4 and `test`.`t1`.`i1` = `test`.`t3`.`i3` and `test`.`t2`.`i2` = `test`.`t3`.`i3`
 drop table t1,t2,t3;
+#
+# MDEV-11958: LEFT JOIN with stored routine produces incorrect result
+#
+CREATE TABLE t (x INT);
+INSERT INTO t VALUES(1),(NULL);
+CREATE FUNCTION f (val INT, ret INT) RETURNS INT DETERMINISTIC RETURN IFNULL(val, ret);
+SELECT t1.x, t2.x, IFNULL(t2.x,0), f(t2.x,0)
+FROM t t1 LEFT JOIN t t2
+ON t1.x = t2.x
+WHERE IFNULL(t2.x,0)=0;
+x	x	IFNULL(t2.x,0)	f(t2.x,0)
+NULL	NULL	0	0
+explain extended
+SELECT t1.x, t2.x, IFNULL(t2.x,0), f(t2.x,0)
+FROM t t1 LEFT JOIN t t2
+ON t1.x = t2.x
+WHERE IFNULL(t2.x,0)=0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`x` AS `x`,`test`.`t2`.`x` AS `x`,ifnull(`test`.`t2`.`x`,0) AS `IFNULL(t2.x,0)`,`f`(`test`.`t2`.`x`,0) AS `f(t2.x,0)` from `test`.`t` `t1` left join `test`.`t` `t2` on(`test`.`t2`.`x` = `test`.`t1`.`x`) where ifnull(`test`.`t2`.`x`,0) = 0
+SELECT t1.x, t2.x, IFNULL(t2.x,0), f(t2.x,0)
+FROM t t1 LEFT JOIN t t2
+ON t1.x = t2.x
+WHERE f(t2.x,0)=0;
+x	x	IFNULL(t2.x,0)	f(t2.x,0)
+NULL	NULL	0	0
+explain extended
+SELECT t1.x, t2.x, IFNULL(t2.x,0), f(t2.x,0)
+FROM t t1 LEFT JOIN t t2
+ON t1.x = t2.x
+WHERE f(t2.x,0)=0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`x` AS `x`,`test`.`t2`.`x` AS `x`,ifnull(`test`.`t2`.`x`,0) AS `IFNULL(t2.x,0)`,`f`(`test`.`t2`.`x`,0) AS `f(t2.x,0)` from `test`.`t` `t1` left join `test`.`t` `t2` on(`test`.`t2`.`x` = `test`.`t1`.`x`) where `f`(`test`.`t2`.`x`,0) = 0
+drop function f;
+drop table t;
+CREATE TABLE t1 (
+col1 DECIMAL(33,5) NULL DEFAULT NULL,
+col2 DECIMAL(33,5) NULL DEFAULT NULL
+);
+CREATE TABLE t2 (
+col1 DECIMAL(33,5) NULL DEFAULT NULL,
+col2 DECIMAL(33,5) NULL DEFAULT NULL,
+col3 DECIMAL(33,5) NULL DEFAULT NULL
+);
+INSERT INTO t1 VALUES (2, 1.1), (2, 2.1);
+INSERT INTO t2 VALUES (3, 3.1, 4), (1, 1, NULL);
+CREATE FUNCTION f1 ( p_num DECIMAL(45,15), p_return DECIMAL(45,15))
+RETURNS decimal(33,5)
+LANGUAGE SQL
+DETERMINISTIC
+CONTAINS SQL
+SQL SECURITY INVOKER
+BEGIN
+IF p_num IS NULL THEN
+RETURN p_return;
+ELSE
+RETURN p_num;
+END IF;
+END |
+SELECT t1.col1, t2.col1, t2.col3
+FROM t1 LEFT OUTER JOIN t2 ON t1.col1 = t2.col2
+WHERE IFNULL(t2.col3,0) = 0;
+col1	col1	col3
+2.00000	NULL	NULL
+2.00000	NULL	NULL
+EXPLAIN EXTENDED SELECT t1.col1, t2.col1, t2.col3
+FROM t1 LEFT OUTER JOIN t2 ON t1.col1 = t2.col2
+WHERE IFNULL(t2.col3,0) = 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`col1` AS `col1`,`test`.`t2`.`col1` AS `col1`,`test`.`t2`.`col3` AS `col3` from `test`.`t1` left join `test`.`t2` on(`test`.`t2`.`col2` = `test`.`t1`.`col1`) where ifnull(`test`.`t2`.`col3`,0) = 0
+SELECT t1.col1, t2.col1, t2.col3
+FROM t1 LEFT OUTER JOIN t2 ON t1.col1 = t2.col2
+WHERE f1(t2.col3,0) = 0;
+col1	col1	col3
+2.00000	NULL	NULL
+2.00000	NULL	NULL
+EXPLAIN EXTENDED SELECT t1.col1, t2.col1, t2.col3
+FROM t1 LEFT OUTER JOIN t2 ON t1.col1 = t2.col2
+WHERE f1(t2.col3,0) = 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`col1` AS `col1`,`test`.`t2`.`col1` AS `col1`,`test`.`t2`.`col3` AS `col3` from `test`.`t1` left join `test`.`t2` on(`test`.`t2`.`col2` = `test`.`t1`.`col1`) where `f1`(`test`.`t2`.`col3`,0) = 0
+DROP FUNCTION f1;
+DROP TABLE t1,t2;
+# end of 5.5 tests
 SET optimizer_switch=@save_optimizer_switch;
diff --git a/mysql-test/r/join_outer_jcl6.result b/mysql-test/r/join_outer_jcl6.result
index cab4c78eb3a..65e2dde409e 100644
--- a/mysql-test/r/join_outer_jcl6.result
+++ b/mysql-test/r/join_outer_jcl6.result
@@ -2348,6 +2348,101 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 Warnings:
 Note	1003	select `test`.`t1`.`i1` AS `i1`,`test`.`t1`.`v1` AS `v1`,`test`.`t2`.`i2` AS `i2`,`test`.`t2`.`v2` AS `v2`,`test`.`t3`.`i3` AS `i3`,`test`.`t3`.`v3` AS `v3` from `test`.`t1` join `test`.`t2` join `test`.`t3` where `test`.`t3`.`v3` = 4 and `test`.`t1`.`i1` = `test`.`t3`.`i3` and `test`.`t2`.`i2` = `test`.`t3`.`i3`
 drop table t1,t2,t3;
+#
+# MDEV-11958: LEFT JOIN with stored routine produces incorrect result
+#
+CREATE TABLE t (x INT);
+INSERT INTO t VALUES(1),(NULL);
+CREATE FUNCTION f (val INT, ret INT) RETURNS INT DETERMINISTIC RETURN IFNULL(val, ret);
+SELECT t1.x, t2.x, IFNULL(t2.x,0), f(t2.x,0)
+FROM t t1 LEFT JOIN t t2
+ON t1.x = t2.x
+WHERE IFNULL(t2.x,0)=0;
+x	x	IFNULL(t2.x,0)	f(t2.x,0)
+NULL	NULL	0	0
+explain extended
+SELECT t1.x, t2.x, IFNULL(t2.x,0), f(t2.x,0)
+FROM t t1 LEFT JOIN t t2
+ON t1.x = t2.x
+WHERE IFNULL(t2.x,0)=0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`x` AS `x`,`test`.`t2`.`x` AS `x`,ifnull(`test`.`t2`.`x`,0) AS `IFNULL(t2.x,0)`,`f`(`test`.`t2`.`x`,0) AS `f(t2.x,0)` from `test`.`t` `t1` left join `test`.`t` `t2` on(`test`.`t2`.`x` = `test`.`t1`.`x`) where ifnull(`test`.`t2`.`x`,0) = 0
+SELECT t1.x, t2.x, IFNULL(t2.x,0), f(t2.x,0)
+FROM t t1 LEFT JOIN t t2
+ON t1.x = t2.x
+WHERE f(t2.x,0)=0;
+x	x	IFNULL(t2.x,0)	f(t2.x,0)
+NULL	NULL	0	0
+explain extended
+SELECT t1.x, t2.x, IFNULL(t2.x,0), f(t2.x,0)
+FROM t t1 LEFT JOIN t t2
+ON t1.x = t2.x
+WHERE f(t2.x,0)=0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`x` AS `x`,`test`.`t2`.`x` AS `x`,ifnull(`test`.`t2`.`x`,0) AS `IFNULL(t2.x,0)`,`f`(`test`.`t2`.`x`,0) AS `f(t2.x,0)` from `test`.`t` `t1` left join `test`.`t` `t2` on(`test`.`t2`.`x` = `test`.`t1`.`x`) where `f`(`test`.`t2`.`x`,0) = 0
+drop function f;
+drop table t;
+CREATE TABLE t1 (
+col1 DECIMAL(33,5) NULL DEFAULT NULL,
+col2 DECIMAL(33,5) NULL DEFAULT NULL
+);
+CREATE TABLE t2 (
+col1 DECIMAL(33,5) NULL DEFAULT NULL,
+col2 DECIMAL(33,5) NULL DEFAULT NULL,
+col3 DECIMAL(33,5) NULL DEFAULT NULL
+);
+INSERT INTO t1 VALUES (2, 1.1), (2, 2.1);
+INSERT INTO t2 VALUES (3, 3.1, 4), (1, 1, NULL);
+CREATE FUNCTION f1 ( p_num DECIMAL(45,15), p_return DECIMAL(45,15))
+RETURNS decimal(33,5)
+LANGUAGE SQL
+DETERMINISTIC
+CONTAINS SQL
+SQL SECURITY INVOKER
+BEGIN
+IF p_num IS NULL THEN
+RETURN p_return;
+ELSE
+RETURN p_num;
+END IF;
+END |
+SELECT t1.col1, t2.col1, t2.col3
+FROM t1 LEFT OUTER JOIN t2 ON t1.col1 = t2.col2
+WHERE IFNULL(t2.col3,0) = 0;
+col1	col1	col3
+2.00000	NULL	NULL
+2.00000	NULL	NULL
+EXPLAIN EXTENDED SELECT t1.col1, t2.col1, t2.col3
+FROM t1 LEFT OUTER JOIN t2 ON t1.col1 = t2.col2
+WHERE IFNULL(t2.col3,0) = 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`col1` AS `col1`,`test`.`t2`.`col1` AS `col1`,`test`.`t2`.`col3` AS `col3` from `test`.`t1` left join `test`.`t2` on(`test`.`t2`.`col2` = `test`.`t1`.`col1`) where ifnull(`test`.`t2`.`col3`,0) = 0
+SELECT t1.col1, t2.col1, t2.col3
+FROM t1 LEFT OUTER JOIN t2 ON t1.col1 = t2.col2
+WHERE f1(t2.col3,0) = 0;
+col1	col1	col3
+2.00000	NULL	NULL
+2.00000	NULL	NULL
+EXPLAIN EXTENDED SELECT t1.col1, t2.col1, t2.col3
+FROM t1 LEFT OUTER JOIN t2 ON t1.col1 = t2.col2
+WHERE f1(t2.col3,0) = 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`col1` AS `col1`,`test`.`t2`.`col1` AS `col1`,`test`.`t2`.`col3` AS `col3` from `test`.`t1` left join `test`.`t2` on(`test`.`t2`.`col2` = `test`.`t1`.`col1`) where `f1`(`test`.`t2`.`col3`,0) = 0
+DROP FUNCTION f1;
+DROP TABLE t1,t2;
+# end of 5.5 tests
 SET optimizer_switch=@save_optimizer_switch;
 set join_cache_level=default;
 show variables like 'join_cache_level';
diff --git a/mysql-test/r/limit_rows_examined.result b/mysql-test/r/limit_rows_examined.result
index 3bc97859303..c94599235b1 100644
--- a/mysql-test/r/limit_rows_examined.result
+++ b/mysql-test/r/limit_rows_examined.result
@@ -425,7 +425,7 @@ c1
 bb
 cc
 Warnings:
-Warning	1931	Query execution was interrupted. The query examined at least 18 rows, which exceeds LIMIT ROWS EXAMINED (16). The query result may be incomplete
+Warning	1931	Query execution was interrupted. The query examined at least 17 rows, which exceeds LIMIT ROWS EXAMINED (16). The query result may be incomplete
 select * from v1 LIMIT ROWS EXAMINED 11;
 c1
 bb
@@ -438,7 +438,8 @@ from (select * from t1
 where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)) as tmp
 LIMIT ROWS EXAMINED 11;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	2	func	1	
 3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
 select *
 from (select * from t1
diff --git a/mysql-test/r/log_tables-big.result b/mysql-test/r/log_tables-big.result
index 1e189a7726f..0a33510fe77 100644
--- a/mysql-test/r/log_tables-big.result
+++ b/mysql-test/r/log_tables-big.result
@@ -1,8 +1,12 @@
 set @@global.log_output = 'TABLE';
+connect  con1,localhost,root,,;
+connect  con2,localhost,root,,;
+connection con1;
 set session long_query_time=10;
 select get_lock('bug27638', 1);
 get_lock('bug27638', 1)
 1
+connection con2;
 set session long_query_time=1;
 select get_lock('bug27638', 2);
 get_lock('bug27638', 2)
@@ -25,7 +29,11 @@ select if (query_time >= '00:01:40', 'OK', 'WRONG') as qt, sql_text from mysql.s
 where sql_text = 'select get_lock(\'bug27638\', 101)';
 qt	sql_text
 OK	select get_lock('bug27638', 101)
+connection con1;
 select release_lock('bug27638');
 release_lock('bug27638')
 1
+connection default;
+disconnect con1;
+disconnect con2;
 set @@global.log_output=default;
diff --git a/mysql-test/r/mix2_myisam.result b/mysql-test/r/mix2_myisam.result
index b282be15a56..34764466d2a 100644
--- a/mysql-test/r/mix2_myisam.result
+++ b/mysql-test/r/mix2_myisam.result
@@ -1549,6 +1549,9 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref	v	v	13	const	#	Using where; Using index
 alter table t1 add unique(v);
 ERROR 23000: Duplicate entry '{ ' for key 'v_2'
+show warnings;
+Level	Code	Message
+Error	1062	Duplicate entry 'a
' for key 'v_2'
 alter table t1 add key(v);
 Warnings:
 Note	1831	Duplicate index `v_2`. This is deprecated and will be disallowed in a future release
diff --git a/mysql-test/r/mrr_icp_extra.result b/mysql-test/r/mrr_icp_extra.result
index 5706bf21895..95788b393dd 100644
--- a/mysql-test/r/mrr_icp_extra.result
+++ b/mysql-test/r/mrr_icp_extra.result
@@ -350,6 +350,9 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref	v	v	13	const	#	Using where; Using index
 alter table t1 add unique(v);
 ERROR 23000: Duplicate entry '{ ' for key 'v_2'
+show warnings;
+Level	Code	Message
+Error	1062	Duplicate entry 'a
' for key 'v_2'
 alter table t1 add key(v);
 Warnings:
 Note	1831	Duplicate index `v_2`. This is deprecated and will be disallowed in a future release
diff --git a/mysql-test/r/myisam.result b/mysql-test/r/myisam.result
index f7eb5db6468..5b41b35c1ba 100644
--- a/mysql-test/r/myisam.result
+++ b/mysql-test/r/myisam.result
@@ -1255,6 +1255,9 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref	v	v	13	const	#	Using where; Using index
 alter table t1 add unique(v);
 ERROR 23000: Duplicate entry '{ ' for key 'v_2'
+show warnings;
+Level	Code	Message
+Error	1062	Duplicate entry 'a
' for key 'v_2'
 alter table t1 add key(v);
 Warnings:
 Note	1831	Duplicate index `v_2`. This is deprecated and will be disallowed in a future release
diff --git a/mysql-test/r/myisam_debug.result b/mysql-test/r/myisam_debug.result
index 39cbd69cdb0..6232e3eac0e 100644
--- a/mysql-test/r/myisam_debug.result
+++ b/mysql-test/r/myisam_debug.result
@@ -29,3 +29,15 @@ Table	Op	Msg_type	Msg_text
 test.t1	check	status	OK
 DROP TABLE t1,t2;
 disconnect insertConn;
+call mtr.add_suppression("Index for table '.*test.t1\\.MYI' is corrupt; try to repair it");
+create table t1 (a int, index(a));
+lock tables t1 write;
+insert t1 values (1),(2),(1);
+set @old_dbug=@@debug_dbug;
+set debug_dbug='+d,mi_lock_database_failure';
+unlock tables;
+Warnings:
+Error	126	Index for table './test/t1.MYI' is corrupt; try to repair it
+Error	1030	Got error 22 "Invalid argument" from storage engine MyISAM
+set debug_dbug=@old_dbug;
+drop table t1;
diff --git a/mysql-test/r/partition_alter.result b/mysql-test/r/partition_alter.result
index cbd90b5ba7c..76b55cefb07 100644
--- a/mysql-test/r/partition_alter.result
+++ b/mysql-test/r/partition_alter.result
@@ -51,3 +51,50 @@ execute stmt;
 execute stmt;
 deallocate prepare stmt;
 drop table test_data;
+create table t1(id int, d date not null, b bool not null default 0, primary key(id,d))
+engine=innodb
+partition by range columns (d) (
+partition p1 values less than ('2016-10-18'),
+partition p2 values less than ('2020-10-19'));
+insert t1 values (0, '2000-01-02', 0);
+insert t1 values (1, '2020-01-02', 10);
+alter table t1 add check (b in (0, 1));
+ERROR 23000: CONSTRAINT `CONSTRAINT_1` failed for `test`.`#sql-temporary`
+alter table t1 add check (b in (0, 10));
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL,
+  `d` date NOT NULL,
+  `b` tinyint(1) NOT NULL DEFAULT 0,
+  PRIMARY KEY (`id`,`d`),
+  CONSTRAINT `CONSTRAINT_1` CHECK (`b` in (0,10))
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+ PARTITION BY RANGE  COLUMNS(d)
+(PARTITION p1 VALUES LESS THAN ('2016-10-18') ENGINE = InnoDB,
+ PARTITION p2 VALUES LESS THAN ('2020-10-19') ENGINE = InnoDB)
+insert t1 values (2, '2020-01-03', 20);
+ERROR 23000: CONSTRAINT `CONSTRAINT_1` failed for `test`.`t1`
+drop table t1;
+create table t1(id int, d date not null, b bool not null default 0, primary key(id,d))
+partition by range columns (d) (
+partition p1 values less than ('2016-10-18'),
+partition p2 values less than ('2020-10-19'));
+insert t1 values (0, '2000-01-02', 0);
+insert t1 values (1, '2020-01-02', 10);
+alter table t1 add check (b in (0, 1));
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL,
+  `d` date NOT NULL,
+  `b` tinyint(1) NOT NULL DEFAULT 0,
+  PRIMARY KEY (`id`,`d`),
+  CONSTRAINT `CONSTRAINT_1` CHECK (`b` in (0,1))
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+ PARTITION BY RANGE  COLUMNS(d)
+(PARTITION p1 VALUES LESS THAN ('2016-10-18') ENGINE = MyISAM,
+ PARTITION p2 VALUES LESS THAN ('2020-10-19') ENGINE = MyISAM)
+insert t1 values (2, '2020-01-03', 20);
+ERROR 23000: CONSTRAINT `CONSTRAINT_1` failed for `test`.`t1`
+drop table t1;
diff --git a/mysql-test/r/subselect_innodb.result b/mysql-test/r/subselect_innodb.result
index 01257c33361..ec7f2c0a3d5 100644
--- a/mysql-test/r/subselect_innodb.result
+++ b/mysql-test/r/subselect_innodb.result
@@ -576,3 +576,42 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	#	
 2	DEPENDENT SUBQUERY	t2	ref	key1	key1	5	test.t1.a	#	Using where; Using filesort
 drop table t1,t2;
+#
+# mdev-12931: semi-join in ON expression of STRAIGHT_JOIN 
+#             joining a base table and a mergeable derived table
+#
+CREATE TABLE t1 (f1 int) ENGINE=InnoDB;
+INSERT INTO t1 VALUES (3),(2);
+CREATE TABLE t2 (f2 int) ENGINE=InnoDB;
+INSERT INTO t2 VALUES (1),(4);
+CREATE TABLE t3 (f3 int) ENGINE=InnoDB;
+INSERT INTO t3 VALUES (5),(6);
+CREATE TABLE t4 (f4 int) ENGINE=InnoDB;
+INSERT INTO t4 VALUES (1),(8);
+SELECT * 
+FROM t1 
+INNER JOIN 
+( t2 STRAIGHT_JOIN ( SELECT * FROM t3 ) AS sq
+ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
+ON ( f1 >= f2 );
+f1	f2	f3
+3	1	5
+2	1	5
+3	1	6
+2	1	6
+EXPLAIN EXTENDED
+SELECT * 
+FROM t1 
+INNER JOIN 
+( t2 STRAIGHT_JOIN ( SELECT * FROM t3 ) AS sq
+ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
+ON ( f1 >= f2 );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using join buffer (flat, BNL join)
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (incremental, BNL join)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using join buffer (incremental, BNL join)
+3	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t2`.`f2` AS `f2`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` join `test`.`t2` semi join (`test`.`t4`) join `test`.`t3` where `test`.`t4`.`f4` = 1 and `test`.`t1`.`f1` >= `test`.`t2`.`f2`
+DROP TABLE t1,t2,t3,t4;
diff --git a/mysql-test/r/subselect_mat_cost_bugs.result b/mysql-test/r/subselect_mat_cost_bugs.result
index b4ddd5e5849..f5d5be8f726 100644
--- a/mysql-test/r/subselect_mat_cost_bugs.result
+++ b/mysql-test/r/subselect_mat_cost_bugs.result
@@ -379,6 +379,7 @@ drop table t3, t4, t5;
 #
 # LP BUG#858038 The result of a query with NOT IN subquery depends on the state of the optimizer switch
 #
+set @optimizer_switch_save= @@optimizer_switch;
 create table t1 (c1 char(2) not null, c2 char(2));
 create table t2 (c3 char(2),          c4 char(2));
 insert into t1 values ('a1', 'b1');
@@ -400,6 +401,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2);
 c1	c2
 drop table t1, t2;
+set optimizer_switch= @optimizer_switch_save;
 #
 # MDEV-12673: cost-based choice between materialization and in-to-exists
 #
@@ -442,3 +444,44 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 2	DEPENDENT SUBQUERY	t3	const	PRIMARY	PRIMARY	4	const	1	
 2	DEPENDENT SUBQUERY	t2	index	NULL	i2	11	NULL	2	Using where; Using index
 DROP TABLE t1,t2,t3;
+#
+# MDEV-7599: in-to-exists chosen after min/max optimization
+#
+set @optimizer_switch_save= @@optimizer_switch;
+CREATE TABLE t1 (a INT, KEY(a)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (b INT, c INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,6),(2,4), (8,9);
+SELECT * FROM t2 WHERE b != ALL (SELECT MIN(a) FROM t1, t2 WHERE t2.c = t2.b);
+b	c
+EXPLAIN EXTENDED SELECT * FROM t2 WHERE b != ALL (SELECT MIN(a) FROM t1, t2 WHERE t2.c = t2.b);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	MATERIALIZED	t1	index	NULL	a	5	NULL	2	100.00	Using index
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	/* select#1 */ select `test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where !<expr_cache><`test`.`t2`.`b`>(<in_optimizer>(`test`.`t2`.`b`,`test`.`t2`.`b` in ( <materialize> (/* select#2 */ select min(`test`.`t1`.`a`) from `test`.`t1` join `test`.`t2` where `test`.`t2`.`c` = `test`.`t2`.`b` ), <primary_index_lookup>(`test`.`t2`.`b` in <temporary table> on distinct_key where `test`.`t2`.`b` = `<subquery2>`.`MIN(a)`))))
+set optimizer_switch= 'materialization=off';
+SELECT * FROM t2 WHERE b != ALL (SELECT MIN(a) FROM t1, t2 WHERE t2.c = t2.b);
+b	c
+EXPLAIN EXTENDED SELECT * FROM t2 WHERE b != ALL (SELECT MIN(a) FROM t1, t2 WHERE t2.c = t2.b);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	index	NULL	a	5	NULL	2	100.00	Using index
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	/* select#1 */ select `test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where !<expr_cache><`test`.`t2`.`b`>(<in_optimizer>(`test`.`t2`.`b`,<exists>(/* select#2 */ select min(`test`.`t1`.`a`) from `test`.`t1` join `test`.`t2` where `test`.`t2`.`c` = `test`.`t2`.`b` having trigcond(<cache>(`test`.`t2`.`b`) = <ref_null_helper>(min(`test`.`t1`.`a`))))))
+set optimizer_switch= @optimizer_switch_save;
+DROP TABLE t1,t2;
+CREATE TABLE t1 (f1 varchar(10)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('foo'),('bar');
+CREATE TABLE t2 (f2 varchar(10), key(f2)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('baz'),('qux');
+CREATE TABLE t3 (f3 varchar(10)) ENGINE=MyISAM;
+INSERT INTO t3 VALUES ('abc'),('def');
+SELECT * FROM t1
+WHERE f1 = ALL( SELECT MAX(t2a.f2)
+FROM t2 AS t2a INNER JOIN t2 t2b INNER JOIN t3
+ON (f3 = t2b.f2) );
+f1
+DROP TABLE t1,t2,t3;
diff --git a/mysql-test/r/subselect_sj.result b/mysql-test/r/subselect_sj.result
index 861360ddf9a..a601dac5337 100644
--- a/mysql-test/r/subselect_sj.result
+++ b/mysql-test/r/subselect_sj.result
@@ -1652,9 +1652,9 @@ CREATE VIEW v1 AS SELECT 1;
 EXPLAIN
 SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<derived3>	system	NULL	NULL	NULL	NULL	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-2	MATERIALIZED	<derived3>	system	NULL	NULL	NULL	NULL	1	
 3	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1);
 a	a
@@ -3072,4 +3072,97 @@ project_number
 aaa
 drop table t1, t2, t3;
 set optimizer_switch= @tmp_mdev6859;
+#
+# MDEV-12675: subquery subject to semi-join optimizations  
+#             in ON expression of INNER JOIN
+#
+set @tmp_mdev12675=@@optimizer_switch;
+set optimizer_switch=default;
+create table t1 (a int) engine=myisam;
+insert into t1  values (5),(3),(2),(7),(2),(5),(1);
+create table t2 (b int, index idx(b)) engine=myisam;
+insert into t2 values (2),(3),(2),(1),(3),(4);
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+analyze table t1,t2;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	OK
+test.t2	analyze	status	OK
+explain
+select a from t1, t2 where b between 1 and 2 and a in (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	Using where
+1	PRIMARY	t2	ref	idx	idx	5	test.t1.a	256	Using index; FirstMatch(t1)
+1	PRIMARY	t2	range	idx	idx	5	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
+explain 
+select a from t1 join t2 on b between 1 and 2 and a in (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	Using where
+1	PRIMARY	t2	ref	idx	idx	5	test.t1.a	256	Using index; FirstMatch(t1)
+1	PRIMARY	t2	range	idx	idx	5	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
+drop table t1,t2;
+set optimizer_switch= @tmp_mdev12675;
+#
+# MDEV-12817: subquery NOT subject to semi-join optimizations  
+#             in ON expression of INNER JOIN
+#
+CREATE TABLE t1 (c1 int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (c2 int) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3),(4);
+CREATE TABLE t3 (c3 int) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (5),(6);
+CREATE TABLE t4 (c4 int) ENGINE=MyISAM;
+INSERT INTO t4 VALUES (7),(8);
+SELECT c1 
+FROM t1 
+LEFT JOIN
+( t2 INNER JOIN t3 ON ( 1 IN ( SELECT c4 FROM t4 ) ) )
+ON (c1 = c3);
+c1
+1
+2
+EXPLAIN EXTENDED SELECT c1 
+FROM t1 
+LEFT JOIN
+( t2 INNER JOIN t3 ON ( 1 IN ( SELECT c4 FROM t4 ) ) )
+ON (c1 = c3);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	SUBQUERY	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	/* select#1 */ select `test`.`t1`.`c1` AS `c1` from `test`.`t1` left join (`test`.`t2` join `test`.`t3`) on(`test`.`t3`.`c3` = `test`.`t1`.`c1` and <cache>(<in_optimizer>(1,<exists>(/* select#2 */ select `test`.`t4`.`c4` from `test`.`t4` where 1 = `test`.`t4`.`c4`)))) where 1
+# mdev-12820
+SELECT *
+FROM t1
+LEFT JOIN
+( ( SELECT * FROM t2 WHERE c2 IN ( SELECT c3 FROM t3 ) ) AS sq INNER JOIN t4 )
+ON (c1 = c2);
+c1	c2	c4
+1	NULL	NULL
+2	NULL	NULL
+EXPLAIN EXTENDED SELECT *
+FROM t1
+LEFT JOIN
+( ( SELECT * FROM t2 WHERE c2 IN ( SELECT c3 FROM t3 ) ) AS sq INNER JOIN t4 )
+ON (c1 = c2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	
+3	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	/* select#1 */ select `test`.`t1`.`c1` AS `c1`,`test`.`t2`.`c2` AS `c2`,`test`.`t4`.`c4` AS `c4` from `test`.`t1` left join (`test`.`t2` join `test`.`t4`) on(`test`.`t2`.`c2` = `test`.`t1`.`c1` and <in_optimizer>(`test`.`t1`.`c1`,<exists>(/* select#3 */ select `test`.`t3`.`c3` from `test`.`t3` where <cache>(`test`.`t2`.`c2`) = `test`.`t3`.`c3`))) where 1
+DROP TABLE t1,t2,t3,t4;
 set optimizer_switch=@subselect_sj_tmp;
diff --git a/mysql-test/r/subselect_sj2_mat.result b/mysql-test/r/subselect_sj2_mat.result
index 07c9e74b4d7..8466f9fba4e 100644
--- a/mysql-test/r/subselect_sj2_mat.result
+++ b/mysql-test/r/subselect_sj2_mat.result
@@ -1625,3 +1625,26 @@ i1
 DROP TABLE t1,t2,t3;
 set join_cache_level= @save_join_cache_level;
 set optimizer_switch=@save_optimizer_switch;
+#
+# mdev-7791: materialization of a semi-join subquery +
+#            RAND() in WHERE
+#            (materialized table is accessed last)
+#
+set @save_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='materialization=on';
+create table t1(i int);
+insert into t1 values (1), (2), (3), (7), (9), (10);
+create table t2(i int);
+insert into t2 values (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
+select * from t1 where (rand() < 0) and i in (select i from t2);
+i
+explain extended
+select * from t1 where (rand() < 0) and i in (select i from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	10	100.00	
+Warnings:
+Note	1003	select `test`.`t1`.`i` AS `i` from `test`.`t1` semi join (`test`.`t2`) where rand() < 0
+drop table t1,t2;
+set optimizer_switch=@save_optimizer_switch;
diff --git a/mysql-test/r/subselect_sj_jcl6.result b/mysql-test/r/subselect_sj_jcl6.result
index bcfa1b14be9..77a073ea2d3 100644
--- a/mysql-test/r/subselect_sj_jcl6.result
+++ b/mysql-test/r/subselect_sj_jcl6.result
@@ -1665,9 +1665,9 @@ CREATE VIEW v1 AS SELECT 1;
 EXPLAIN
 SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<derived3>	system	NULL	NULL	NULL	NULL	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-2	MATERIALIZED	<derived3>	system	NULL	NULL	NULL	NULL	1	
 3	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1);
 a	a
@@ -3086,6 +3086,99 @@ project_number
 aaa
 drop table t1, t2, t3;
 set optimizer_switch= @tmp_mdev6859;
+#
+# MDEV-12675: subquery subject to semi-join optimizations  
+#             in ON expression of INNER JOIN
+#
+set @tmp_mdev12675=@@optimizer_switch;
+set optimizer_switch=default;
+create table t1 (a int) engine=myisam;
+insert into t1  values (5),(3),(2),(7),(2),(5),(1);
+create table t2 (b int, index idx(b)) engine=myisam;
+insert into t2 values (2),(3),(2),(1),(3),(4);
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+insert into t2 select b+10 from t2;
+analyze table t1,t2;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	OK
+test.t2	analyze	status	OK
+explain
+select a from t1, t2 where b between 1 and 2 and a in (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	Using where
+1	PRIMARY	t2	ref	idx	idx	5	test.t1.a	256	Using index; FirstMatch(t1)
+1	PRIMARY	t2	range	idx	idx	5	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
+explain 
+select a from t1 join t2 on b between 1 and 2 and a in (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	Using where
+1	PRIMARY	t2	ref	idx	idx	5	test.t1.a	256	Using index; FirstMatch(t1)
+1	PRIMARY	t2	range	idx	idx	5	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
+drop table t1,t2;
+set optimizer_switch= @tmp_mdev12675;
+#
+# MDEV-12817: subquery NOT subject to semi-join optimizations  
+#             in ON expression of INNER JOIN
+#
+CREATE TABLE t1 (c1 int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (c2 int) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3),(4);
+CREATE TABLE t3 (c3 int) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (5),(6);
+CREATE TABLE t4 (c4 int) ENGINE=MyISAM;
+INSERT INTO t4 VALUES (7),(8);
+SELECT c1 
+FROM t1 
+LEFT JOIN
+( t2 INNER JOIN t3 ON ( 1 IN ( SELECT c4 FROM t4 ) ) )
+ON (c1 = c3);
+c1
+1
+2
+EXPLAIN EXTENDED SELECT c1 
+FROM t1 
+LEFT JOIN
+( t2 INNER JOIN t3 ON ( 1 IN ( SELECT c4 FROM t4 ) ) )
+ON (c1 = c3);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (incremental, BNL join)
+2	SUBQUERY	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	/* select#1 */ select `test`.`t1`.`c1` AS `c1` from `test`.`t1` left join (`test`.`t2` join `test`.`t3`) on(`test`.`t3`.`c3` = `test`.`t1`.`c1` and <cache>(<in_optimizer>(1,<exists>(/* select#2 */ select `test`.`t4`.`c4` from `test`.`t4` where 1 = `test`.`t4`.`c4`)))) where 1
+# mdev-12820
+SELECT *
+FROM t1
+LEFT JOIN
+( ( SELECT * FROM t2 WHERE c2 IN ( SELECT c3 FROM t3 ) ) AS sq INNER JOIN t4 )
+ON (c1 = c2);
+c1	c2	c4
+1	NULL	NULL
+2	NULL	NULL
+EXPLAIN EXTENDED SELECT *
+FROM t1
+LEFT JOIN
+( ( SELECT * FROM t2 WHERE c2 IN ( SELECT c3 FROM t3 ) ) AS sq INNER JOIN t4 )
+ON (c1 = c2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using join buffer (incremental, BNL join)
+3	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	/* select#1 */ select `test`.`t1`.`c1` AS `c1`,`test`.`t2`.`c2` AS `c2`,`test`.`t4`.`c4` AS `c4` from `test`.`t1` left join (`test`.`t2` join `test`.`t4`) on(`test`.`t2`.`c2` = `test`.`t1`.`c1` and <in_optimizer>(`test`.`t1`.`c1`,<exists>(/* select#3 */ select `test`.`t3`.`c3` from `test`.`t3` where <cache>(`test`.`t2`.`c2`) = `test`.`t3`.`c3`))) where 1
+DROP TABLE t1,t2,t3,t4;
 set optimizer_switch=@subselect_sj_tmp;
 #
 # BUG#49129: Wrong result with IN-subquery with join_cache_level=6 and firstmatch=off
diff --git a/mysql-test/r/trigger.result b/mysql-test/r/trigger.result
index 407f8534672..b751632307a 100644
--- a/mysql-test/r/trigger.result
+++ b/mysql-test/r/trigger.result
@@ -2368,6 +2368,16 @@ tr1	1	2016-01-01 10:10:10.33
 tr2	2	2016-01-01 10:10:10.99
 drop table t1;
 set time_zone= @@global.time_zone;
+# MDEV-12992: Increasing memory consumption
+with each invocation of trigger
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (1);
+CREATE TABLE t2 (b INT);
+CREATE TRIGGER tr 
+AFTER UPDATE ON t1 FOR EACH ROW SELECT (SELECT b FROM t2) INTO @x;
+# Running 20000 queries
+DROP TABLE t1,t2;
 #
 # Start of 10.3 tests
 #
diff --git a/mysql-test/r/union.result b/mysql-test/r/union.result
index e0aa93d5c97..956703237a1 100644
--- a/mysql-test/r/union.result
+++ b/mysql-test/r/union.result
@@ -2178,6 +2178,35 @@ WHERE t1_2.b NOT IN ( SELECT 4 UNION ALL SELECT 5 );
 a	b	a	b
 1	1	1	1
 DROP TABLE t1;
+# Bug mdev-12788: UNION ALL + impossible having for derived
+#                 with IN subquery in WHERE
+#
+CREATE TABLE t1 (i int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1);
+CREATE TABLE t2 (pk int PRIMARY KEY) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1),(2);
+SELECT 1, 2
+UNION ALL
+SELECT i, COUNT(*) FROM (
+SELECT * FROM t1 WHERE i IN ( SELECT pk FROM t2 )
+) AS sq
+GROUP BY i
+HAVING i = 10;
+1	2
+1	2
+EXPLAIN EXTENDED SELECT 1, 2
+UNION ALL
+SELECT i, COUNT(*) FROM (
+SELECT * FROM t1 WHERE i IN ( SELECT pk FROM t2 )
+) AS sq
+GROUP BY i
+HAVING i = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible HAVING noticed after reading const tables
+Warnings:
+Note	1003	/* select#1 */ select 1 AS `1`,2 AS `2` union all /* select#2 */ select 1 AS `i`,count(0) AS `COUNT(*)` from `test`.`t2` where 1 group by 1 having 0
+DROP TABLE t1,t2;
 #
 # Start of 10.3 tests
 #