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-rw-r--r--mysql-test/r/heap_hash.result20
-rw-r--r--mysql-test/r/partition.result6
-rw-r--r--mysql-test/r/subselect.result110
-rw-r--r--mysql-test/r/subselect_no_mat.result110
-rw-r--r--mysql-test/r/subselect_no_opts.result110
-rw-r--r--mysql-test/r/subselect_no_scache.result110
-rw-r--r--mysql-test/r/subselect_no_semijoin.result110
-rw-r--r--mysql-test/r/user_var.result38
-rw-r--r--mysql-test/t/heap_hash.test17
-rw-r--r--mysql-test/t/partition.test8
-rw-r--r--mysql-test/t/subselect.test76
-rw-r--r--mysql-test/t/user_var.test29
12 files changed, 741 insertions, 3 deletions
diff --git a/mysql-test/r/heap_hash.result b/mysql-test/r/heap_hash.result
index ba7d79e491a..86d072ac3cf 100644
--- a/mysql-test/r/heap_hash.result
+++ b/mysql-test/r/heap_hash.result
@@ -382,6 +382,26 @@ INSERT INTO t1 VALUES('A ', 'A ');
ERROR 23000: Duplicate entry 'A -A ' for key 'key1'
DROP TABLE t1;
End of 5.0 tests
+#
+# MDEV-568 (AKA LP BUG#1007981, AKA MySQL bug#44771)
+# Wrong result for a hash index look-up if the index is unique and
+# the key is NULL
+#
+CREATE TABLE t1 ( pk INT PRIMARY KEY, val INT, UNIQUE KEY USING HASH(val)) ENGINE=MEMORY;
+INSERT INTO t1 VALUES (1, NULL);
+INSERT INTO t1 VALUES (2, NULL);
+INSERT INTO t1 VALUES (3, 1);
+INSERT INTO t1 VALUES (4, NULL);
+EXPLAIN SELECT * FROM t1 WHERE val IS NULL;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 ref val val 5 const 1 Using where
+SELECT * FROM t1 WHERE val IS NULL;
+pk val
+4 NULL
+2 NULL
+1 NULL
+drop table t1;
+End of 5.2 tests
# bit index in heap tables
create table t1 (a bit(63) not null) engine=heap;
insert into t1 values (869751),(736494),(226312),(802616),(728912);
diff --git a/mysql-test/r/partition.result b/mysql-test/r/partition.result
index fa080b8f5b9..258c605f461 100644
--- a/mysql-test/r/partition.result
+++ b/mysql-test/r/partition.result
@@ -2252,6 +2252,12 @@ HAVING b > geomfromtext("")
);
1
DROP TABLE t1;
+
+MDEV-612 Valgrind error in ha_maria::check_if_incompatible_data
+
+CREATE TABLE t1 (a INT, b INT, KEY(a)) ENGINE=Aria PARTITION BY KEY(a) PARTITIONS 2;
+ALTER TABLE t1 ADD KEY (b);
+drop table t1;
End of 5.1 tests
#
# BUG#598247: partition.test produces valgrind errors in 5.3-based branches
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index 2dfe139739b..bcfb2dad86d 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -5655,6 +5655,116 @@ WHERE (col_varchar_nokey, 'x') IN
col_int_nokey
1
DROP TABLE ot,it1,it2;
+#
+# MDEV-746
+# Bug#13651009 WRONG RESULT FROM DERIVED TABLE IF THE SUBQUERY
+# HAS AN EMPTY RESULT
+#
+CREATE TABLE t1 (
+pk int NOT NULL,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+CREATE TABLE t2 (
+pk int NOT NULL AUTO_INCREMENT,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,4,4,'00:00:00','b','b');
+SET @var2:=4, @var3:=8;
+
+Testcase without inner subquery
+EXPLAIN SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+EXPLAIN SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE <derived2> system NULL NULL NULL NULL 0 const row not found
+2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
+SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+
+Testcase with inner subquery; crashed WL#6095
+SET @var3=8;
+EXPLAIN SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+2 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+EXPLAIN SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+3 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+DROP TABLE t1,t2;
End of 5.2 tests
#
# BUG#779885: Crash in eliminate_item_equal with materialization=on in
diff --git a/mysql-test/r/subselect_no_mat.result b/mysql-test/r/subselect_no_mat.result
index 343e3368eba..1648a8f81e9 100644
--- a/mysql-test/r/subselect_no_mat.result
+++ b/mysql-test/r/subselect_no_mat.result
@@ -5654,6 +5654,116 @@ WHERE (col_varchar_nokey, 'x') IN
col_int_nokey
1
DROP TABLE ot,it1,it2;
+#
+# MDEV-746
+# Bug#13651009 WRONG RESULT FROM DERIVED TABLE IF THE SUBQUERY
+# HAS AN EMPTY RESULT
+#
+CREATE TABLE t1 (
+pk int NOT NULL,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+CREATE TABLE t2 (
+pk int NOT NULL AUTO_INCREMENT,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,4,4,'00:00:00','b','b');
+SET @var2:=4, @var3:=8;
+
+Testcase without inner subquery
+EXPLAIN SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+EXPLAIN SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE <derived2> system NULL NULL NULL NULL 0 const row not found
+2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
+SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+
+Testcase with inner subquery; crashed WL#6095
+SET @var3=8;
+EXPLAIN SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+2 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+EXPLAIN SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+3 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+DROP TABLE t1,t2;
End of 5.2 tests
#
# BUG#779885: Crash in eliminate_item_equal with materialization=on in
diff --git a/mysql-test/r/subselect_no_opts.result b/mysql-test/r/subselect_no_opts.result
index 1d1510defa0..47f6d3a0ed4 100644
--- a/mysql-test/r/subselect_no_opts.result
+++ b/mysql-test/r/subselect_no_opts.result
@@ -5650,6 +5650,116 @@ WHERE (col_varchar_nokey, 'x') IN
col_int_nokey
1
DROP TABLE ot,it1,it2;
+#
+# MDEV-746
+# Bug#13651009 WRONG RESULT FROM DERIVED TABLE IF THE SUBQUERY
+# HAS AN EMPTY RESULT
+#
+CREATE TABLE t1 (
+pk int NOT NULL,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+CREATE TABLE t2 (
+pk int NOT NULL AUTO_INCREMENT,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,4,4,'00:00:00','b','b');
+SET @var2:=4, @var3:=8;
+
+Testcase without inner subquery
+EXPLAIN SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+EXPLAIN SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE <derived2> system NULL NULL NULL NULL 0 const row not found
+2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
+SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+
+Testcase with inner subquery; crashed WL#6095
+SET @var3=8;
+EXPLAIN SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+2 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+EXPLAIN SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+3 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+DROP TABLE t1,t2;
End of 5.2 tests
#
# BUG#779885: Crash in eliminate_item_equal with materialization=on in
diff --git a/mysql-test/r/subselect_no_scache.result b/mysql-test/r/subselect_no_scache.result
index d80cd477fd0..4652039ffb8 100644
--- a/mysql-test/r/subselect_no_scache.result
+++ b/mysql-test/r/subselect_no_scache.result
@@ -5661,6 +5661,116 @@ WHERE (col_varchar_nokey, 'x') IN
col_int_nokey
1
DROP TABLE ot,it1,it2;
+#
+# MDEV-746
+# Bug#13651009 WRONG RESULT FROM DERIVED TABLE IF THE SUBQUERY
+# HAS AN EMPTY RESULT
+#
+CREATE TABLE t1 (
+pk int NOT NULL,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+CREATE TABLE t2 (
+pk int NOT NULL AUTO_INCREMENT,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,4,4,'00:00:00','b','b');
+SET @var2:=4, @var3:=8;
+
+Testcase without inner subquery
+EXPLAIN SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+EXPLAIN SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE <derived2> system NULL NULL NULL NULL 0 const row not found
+2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
+SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+
+Testcase with inner subquery; crashed WL#6095
+SET @var3=8;
+EXPLAIN SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+2 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+EXPLAIN SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+3 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+DROP TABLE t1,t2;
End of 5.2 tests
#
# BUG#779885: Crash in eliminate_item_equal with materialization=on in
diff --git a/mysql-test/r/subselect_no_semijoin.result b/mysql-test/r/subselect_no_semijoin.result
index 2a1d685710e..964704e0695 100644
--- a/mysql-test/r/subselect_no_semijoin.result
+++ b/mysql-test/r/subselect_no_semijoin.result
@@ -5650,6 +5650,116 @@ WHERE (col_varchar_nokey, 'x') IN
col_int_nokey
1
DROP TABLE ot,it1,it2;
+#
+# MDEV-746
+# Bug#13651009 WRONG RESULT FROM DERIVED TABLE IF THE SUBQUERY
+# HAS AN EMPTY RESULT
+#
+CREATE TABLE t1 (
+pk int NOT NULL,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+CREATE TABLE t2 (
+pk int NOT NULL AUTO_INCREMENT,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,4,4,'00:00:00','b','b');
+SET @var2:=4, @var3:=8;
+
+Testcase without inner subquery
+EXPLAIN SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+EXPLAIN SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE <derived2> system NULL NULL NULL NULL 0 const row not found
+2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
+SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+@var3:=12 pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+SELECT @var3;
+@var3
+8
+
+Testcase with inner subquery; crashed WL#6095
+SET @var3=8;
+EXPLAIN SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+2 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+EXPLAIN SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+3 DEPENDENT SUBQUERY c_sq1_alias1 system PRIMARY NULL NULL NULL 1
+SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+pk col_int_nokey col_int_key col_time_key col_varchar_key col_varchar_nokey
+DROP TABLE t1,t2;
End of 5.2 tests
#
# BUG#779885: Crash in eliminate_item_equal with materialization=on in
diff --git a/mysql-test/r/user_var.result b/mysql-test/r/user_var.result
index 19cb54ad2bc..0f79e30bfd1 100644
--- a/mysql-test/r/user_var.result
+++ b/mysql-test/r/user_var.result
@@ -348,9 +348,9 @@ select @a:=f3, count(f3) from t1 group by 1 desc;
1.5 4
select @a:=f4, count(f4) from t1 group by 1 desc;
@a:=f4 count(f4)
-4.6 1
-3.6 2
-2.6 1
+1.6 1
+1.6 1
+1.6 2
1.6 4
drop table t1;
create table t1 (f1 int);
@@ -464,3 +464,35 @@ GROUP BY @b:=(SELECT COUNT(*) > t2.a);
1
DROP TABLE t1;
End of 5.1 tests
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0);
+SELECT DISTINCT POW(COUNT(*), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a))
+AS b FROM t1 GROUP BY a;
+b
+1
+SELECT @a;
+@a
+1
+DROP TABLE t1;
+CREATE TABLE t1(f1 INT, f2 INT);
+INSERT INTO t1 VALUES (1,2),(2,3),(3,1);
+CREATE TABLE t2(a INT);
+INSERT INTO t2 VALUES (1);
+SET @var=NULL;
+SELECT @var:=(SELECT f2 FROM t2 WHERE @var) FROM t1 GROUP BY f1 ORDER BY f2 DESC
+LIMIT 1;
+@var:=(SELECT f2 FROM t2 WHERE @var)
+NULL
+SELECT @var;
+@var
+NULL
+DROP TABLE t1, t2;
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0),(1),(3);
+SELECT DISTINCT POW(COUNT(distinct a), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a limit 1)) AS b FROM t1 GROUP BY a;
+b
+1
+SELECT @a;
+@a
+1
+DROP TABLE t1;
diff --git a/mysql-test/t/heap_hash.test b/mysql-test/t/heap_hash.test
index a2960560e57..920f261201d 100644
--- a/mysql-test/t/heap_hash.test
+++ b/mysql-test/t/heap_hash.test
@@ -285,6 +285,23 @@ DROP TABLE t1;
--echo End of 5.0 tests
+--echo #
+--echo # MDEV-568 (AKA LP BUG#1007981, AKA MySQL bug#44771)
+--echo # Wrong result for a hash index look-up if the index is unique and
+--echo # the key is NULL
+--echo #
+CREATE TABLE t1 ( pk INT PRIMARY KEY, val INT, UNIQUE KEY USING HASH(val)) ENGINE=MEMORY;
+
+INSERT INTO t1 VALUES (1, NULL);
+INSERT INTO t1 VALUES (2, NULL);
+INSERT INTO t1 VALUES (3, 1);
+INSERT INTO t1 VALUES (4, NULL);
+EXPLAIN SELECT * FROM t1 WHERE val IS NULL;
+SELECT * FROM t1 WHERE val IS NULL;
+drop table t1;
+
+--echo End of 5.2 tests
+
-- echo # bit index in heap tables
create table t1 (a bit(63) not null) engine=heap;
diff --git a/mysql-test/t/partition.test b/mysql-test/t/partition.test
index 19182391ef5..f035528444f 100644
--- a/mysql-test/t/partition.test
+++ b/mysql-test/t/partition.test
@@ -2267,6 +2267,14 @@ SELECT 1 FROM t1 WHERE b < SOME
DROP TABLE t1;
+--echo
+--echo MDEV-612 Valgrind error in ha_maria::check_if_incompatible_data
+--echo
+
+CREATE TABLE t1 (a INT, b INT, KEY(a)) ENGINE=Aria PARTITION BY KEY(a) PARTITIONS 2;
+ALTER TABLE t1 ADD KEY (b);
+drop table t1;
+
--echo End of 5.1 tests
diff --git a/mysql-test/t/subselect.test b/mysql-test/t/subselect.test
index bbdf1252334..eda78b1afe6 100644
--- a/mysql-test/t/subselect.test
+++ b/mysql-test/t/subselect.test
@@ -4754,6 +4754,82 @@ SELECT col_int_nokey FROM ot
DROP TABLE ot,it1,it2;
+--echo #
+--echo # MDEV-746
+--echo # Bug#13651009 WRONG RESULT FROM DERIVED TABLE IF THE SUBQUERY
+--echo # HAS AN EMPTY RESULT
+--echo #
+
+CREATE TABLE t1 (
+ pk int NOT NULL,
+ col_int_nokey int NOT NULL,
+ col_int_key int NOT NULL,
+ col_time_key time NOT NULL,
+ col_varchar_key varchar(1) NOT NULL,
+ col_varchar_nokey varchar(1) NOT NULL,
+ PRIMARY KEY (pk),
+ KEY col_int_key (col_int_key),
+ KEY col_time_key (col_time_key),
+ KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+
+CREATE TABLE t2 (
+ pk int NOT NULL AUTO_INCREMENT,
+ col_int_nokey int NOT NULL,
+ col_int_key int NOT NULL,
+ col_time_key time NOT NULL,
+ col_varchar_key varchar(1) NOT NULL,
+ col_varchar_nokey varchar(1) NOT NULL,
+ PRIMARY KEY (pk),
+ KEY col_int_key (col_int_key),
+ KEY col_time_key (col_time_key),
+ KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+
+INSERT INTO t2 VALUES (1,4,4,'00:00:00','b','b');
+
+SET @var2:=4, @var3:=8;
+
+--echo
+--echo Testcase without inner subquery
+
+let $subq=
+SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+ sq4_alias1.col_varchar_key = @var3;
+
+eval EXPLAIN $subq;
+eval $subq;
+SELECT @var3;
+
+# Now as derived table:
+eval EXPLAIN SELECT * FROM ( $subq ) AS alias3;
+eval SELECT * FROM ( $subq ) AS alias3;
+SELECT @var3;
+
+--echo
+--echo Testcase with inner subquery; crashed WL#6095
+SET @var3=8;
+let $subq=
+SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+ NOT IN
+ (SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+ c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+ FROM t2 AS c_sq1_alias1
+ WHERE (c_sq1_alias1.col_int_nokey != @var2
+ OR c_sq1_alias1.pk != @var3));
+
+eval EXPLAIN $subq;
+eval $subq;
+# Now as derived table:
+eval EXPLAIN SELECT * FROM ( $subq ) AS alias3;
+eval SELECT * FROM ( $subq ) AS alias3;
+
+DROP TABLE t1,t2;
+
--echo End of 5.2 tests
--echo #
diff --git a/mysql-test/t/user_var.test b/mysql-test/t/user_var.test
index 2782f61994d..d902563647e 100644
--- a/mysql-test/t/user_var.test
+++ b/mysql-test/t/user_var.test
@@ -235,6 +235,7 @@ select @a:=f1, count(f1) from t1 group by 1 desc;
select @a:=f1, count(f1) from t1 group by 1 asc;
select @a:=f2, count(f2) from t1 group by 1 desc;
select @a:=f3, count(f3) from t1 group by 1 desc;
+--sorted_result
select @a:=f4, count(f4) from t1 group by 1 desc;
drop table t1;
@@ -377,3 +378,31 @@ GROUP BY @b:=(SELECT COUNT(*) > t2.a);
DROP TABLE t1;
--echo End of 5.1 tests
+
+#
+# MDEV-616 LP BUG#1002126
+# Bug #11764371 57196: MORE FUN WITH ASSERTION: !TABLE->FILE ||
+# TABLE->FILE->INITED == HANDLER::
+#
+
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0);
+SELECT DISTINCT POW(COUNT(*), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a))
+AS b FROM t1 GROUP BY a;
+SELECT @a;
+DROP TABLE t1;
+CREATE TABLE t1(f1 INT, f2 INT);
+INSERT INTO t1 VALUES (1,2),(2,3),(3,1);
+CREATE TABLE t2(a INT);
+INSERT INTO t2 VALUES (1);
+SET @var=NULL;
+SELECT @var:=(SELECT f2 FROM t2 WHERE @var) FROM t1 GROUP BY f1 ORDER BY f2 DESC
+LIMIT 1;
+SELECT @var;
+DROP TABLE t1, t2;
+
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0),(1),(3);
+SELECT DISTINCT POW(COUNT(distinct a), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a limit 1)) AS b FROM t1 GROUP BY a;
+SELECT @a;
+DROP TABLE t1;
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