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authorIgor Babaev <igor@askmonty.org>2018-10-14 15:20:25 -0700
committerIgor Babaev <igor@askmonty.org>2018-10-14 15:29:08 -0700
commit103b1df510599255f464de5c85a8b0ab1bb1283e (patch)
tree60f6734ab43ae53f259337195d0bb1a4c5b8d821
parent74387028a06c557f36a0fd1bbde347f1551c8fb7 (diff)
downloadmariadb-git-103b1df510599255f464de5c85a8b0ab1bb1283e.tar.gz
MDEV-17222 Reproducible server crash in String_list::append_str or
in Field_iterator_table::create_item When IN predicate is converted to IN subquery we have to ensure that any item from the select list of the subquery has some name and this name is unique across the select list. This was not guaranteed by the code before the patch for MDEV-17222. If the name of an item of the select list was not set, and this happened for binary constants, then the server crashed. If the first row in the IN list contained the same constant in two different positions then the server returned an error message. This was fixed by providing all constants in the first row of the IN list with generated names.
-rw-r--r--mysql-test/main/opt_tvc.result67
-rw-r--r--mysql-test/main/opt_tvc.test40
-rw-r--r--sql/sql_tvc.cc19
3 files changed, 105 insertions, 21 deletions
diff --git a/mysql-test/main/opt_tvc.result b/mysql-test/main/opt_tvc.result
index fdbd932a433..d503dab4d99 100644
--- a/mysql-test/main/opt_tvc.result
+++ b/mysql-test/main/opt_tvc.result
@@ -51,7 +51,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 2 100.00
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`1`
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`_col_1`
explain extended select * from t1
where a in
(
@@ -98,7 +98,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
5 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) semi join ((values (1),(5)) `tvc_1`) where `test`.`t1`.`b` = `tvc_1`.`1`
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) semi join ((values (1),(5)) `tvc_1`) where `test`.`t1`.`b` = `tvc_1`.`_col_1`
explain extended select * from t1
where a in
(
@@ -154,7 +154,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where; Using join buffer (flat, BNL join)
4 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (3),(4)) `tvc_0` join `test`.`t2`) where `test`.`t2`.`b` = `tvc_0`.`3`
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (3),(4)) `tvc_0` join `test`.`t2`) where `test`.`t2`.`b` = `tvc_0`.`_col_1`
explain extended select * from t1
where a in
(
@@ -211,7 +211,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 MATERIALIZED <derived4> ALL NULL NULL NULL NULL 2 100.00
4 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`1`
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`_col_1`
explain extended select * from
(
select *
@@ -270,7 +270,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 MATERIALIZED <derived4> ALL NULL NULL NULL NULL 2 100.00
4 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 with tvc_0 as (/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` in (1,2))/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`1`
+Note 1003 with tvc_0 as (/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` in (1,2))/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`_col_1`
explain extended select * from
(
select *
@@ -321,7 +321,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 MATERIALIZED <derived4> ALL NULL NULL NULL NULL 2 100.00
4 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`1`
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`_col_1`
explain extended select * from v2;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery3> ALL distinct_key NULL NULL NULL 2 100.00
@@ -386,7 +386,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 6 100.00 Using where; Using join buffer (flat, BNL join)
5 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0` join `test`.`t1`) where `test`.`t1`.`a` = 1 and `test`.`t1`.`a` = `tvc_0`.`1`
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0` join `test`.`t1`) where `test`.`t1`.`a` = 1 and `test`.`t1`.`a` = `tvc_0`.`_col_1`
explain extended select * from t1
where a in
(
@@ -507,11 +507,11 @@ a b
explain extended select * from t3 where a in (1,4);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2 100.00
-1 PRIMARY t3 ref idx idx 5 tvc_0.1 3 100.00
+1 PRIMARY t3 ref idx idx 5 tvc_0._col_1 3 100.00
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 2 100.00
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b` from `test`.`t3` semi join ((values (1),(4)) `tvc_0`) where `test`.`t3`.`a` = `tvc_0`.`1`
+Note 1003 /* select#1 */ select `test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b` from `test`.`t3` semi join ((values (1),(4)) `tvc_0`) where `test`.`t3`.`a` = `tvc_0`.`_col_1`
# use vectors in IN predeicate
set @@in_predicate_conversion_threshold= 4;
select * from t1 where (a,b) in ((1,2),(3,4));
@@ -524,7 +524,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 2 100.00
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1,2),(3,4)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`1` and `test`.`t1`.`b` = `tvc_0`.`2`
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1,2),(3,4)) `tvc_0`) where `test`.`t1`.`a` = `tvc_0`.`_col_1` and `test`.`t1`.`b` = `tvc_0`.`_col_2`
set @@in_predicate_conversion_threshold= 2;
# trasformation works for the one IN predicate and doesn't work for the other
set @@in_predicate_conversion_threshold= 5;
@@ -543,7 +543,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 3 100.00
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` semi join ((values (1,3),(8,0),(5,1)) `tvc_0`) where `test`.`t2`.`a` = `tvc_0`.`1` and `test`.`t2`.`c` = `tvc_0`.`3` and (`tvc_0`.`1`,`test`.`t2`.`b`) in (<cache>((1,2)),<cache>((8,9)))
+Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` semi join ((values (1,3),(8,0),(5,1)) `tvc_0`) where `test`.`t2`.`a` = `tvc_0`.`_col_1` and `test`.`t2`.`c` = `tvc_0`.`_col_2` and (`tvc_0`.`_col_1`,`test`.`t2`.`b`) in (<cache>((1,2)),<cache>((8,9)))
set @@in_predicate_conversion_threshold= 2;
#
# mdev-14281: conversion of NOT IN predicate into subquery predicate
@@ -571,7 +571,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 3 100.00
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),(`test`.`t1`.`a`,`test`.`t1`.`b`) in ( <materialize> (/* select#2 */ select `tvc_0`.`1`,`tvc_0`.`2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`1` and `test`.`t1`.`b` = `<subquery2>`.`2`))))
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),(`test`.`t1`.`a`,`test`.`t1`.`b`) in ( <materialize> (/* select#2 */ select `tvc_0`.`_col_1`,`tvc_0`.`_col_2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`_col_1` and `test`.`t1`.`b` = `<subquery2>`.`_col_2`))))
explain extended select * from t1
where (a,b) not in (select * from (values (1,2),(8,9), (5,1)) as tvc_0);
id select_type table type possible_keys key key_len ref rows filtered Extra
@@ -593,7 +593,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 3 100.00
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` < 7 and !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),(`test`.`t1`.`a`,`test`.`t1`.`b`) in ( <materialize> (/* select#2 */ select `tvc_0`.`1`,`tvc_0`.`2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`1` and `test`.`t1`.`b` = `<subquery2>`.`2`))))
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` < 7 and !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),(`test`.`t1`.`a`,`test`.`t1`.`b`) in ( <materialize> (/* select#2 */ select `tvc_0`.`_col_1`,`tvc_0`.`_col_2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`_col_1` and `test`.`t1`.`b` = `<subquery2>`.`_col_2`))))
select * from t2
where (a,c) not in ((1,2),(8,9), (5,1));
a b c
@@ -609,11 +609,11 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 3 100.00
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where !<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`c`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`c`),(`test`.`t2`.`a`,`test`.`t2`.`c`) in ( <materialize> (/* select#2 */ select `tvc_0`.`1`,`tvc_0`.`2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where `test`.`t2`.`a` = `<subquery2>`.`1` and `test`.`t2`.`c` = `<subquery2>`.`2`))))
+Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where !<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`c`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`c`),(`test`.`t2`.`a`,`test`.`t2`.`c`) in ( <materialize> (/* select#2 */ select `tvc_0`.`_col_1`,`tvc_0`.`_col_2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where `test`.`t2`.`a` = `<subquery2>`.`_col_1` and `test`.`t2`.`c` = `<subquery2>`.`_col_2`))))
drop table t1, t2, t3;
set @@in_predicate_conversion_threshold= default;
#
-# MDEV-14947: conversion of TVC with only NULL values
+# MDEV-14947: conversion to TVC with only NULL values
#
CREATE TABLE t1 (i INT);
INSERT INTO t1 VALUES (3), (2), (7);
@@ -633,11 +633,11 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 5 100.00 Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
-Note 1003 /* select#1 */ select `test`.`t1`.`i` AS `i` from `test`.`t1` semi join ((values (NULL),(NULL),(NULL),(NULL),(NULL)) `tvc_0`) where `test`.`t1`.`i` = `tvc_0`.`NULL`
+Note 1003 /* select#1 */ select `test`.`t1`.`i` AS `i` from `test`.`t1` semi join ((values (NULL),(NULL),(NULL),(NULL),(NULL)) `tvc_0`) where `test`.`t1`.`i` = `tvc_0`.`_col_1`
SET in_predicate_conversion_threshold= default;
DROP TABLE t1;
#
-# MDEV-14835: conversion of TVC with BIGINT or YEAR values
+# MDEV-14835: conversion to TVC with BIGINT or YEAR values
#
SET @@in_predicate_conversion_threshold= 2;
CREATE TABLE t1 (a BIGINT);
@@ -654,3 +654,36 @@ y
2011
DROP TABLE t1,t2;
SET @@in_predicate_conversion_threshold= default;
+#
+# MDEV-17222: conversion to TVC with no names for constants
+# conversion to TVC with the same constants in the first row
+#
+SET @@in_predicate_conversion_threshold= 2;
+CREATE TABLE t1 (f BINARY(16)) ENGINE=MYISAM;
+INSERT INTO t1 VALUES
+(x'BAE56AF2B1C2397D99D58E2A06761DDB'), (x'9B9B698BCCB939EE8F1EA56C1A2E5DAA'),
+(x'A0A1C4FE39A239BABD3E0D8985E6BEA5');
+SELECT COUNT(*) FROM t1 WHERE f IN
+(x'9B9B698BCCB939EE8F1EA56C1A2E5DAA', x'E2362DBAB5EA30B5804917A0A7D881E2',
+x'B78B2EEAD13635088D93EA3309E24802', x'BAE56AF2B1C2397D99D58E2A06761DDB');
+COUNT(*)
+2
+CREATE TABLE t2 (f1 BINARY(16), f2 BINARY(16)) ENGINE=MYISAM;
+INSERT INTO t2 VALUES
+(x'55FB3B14D6B83D39859E42533906350D', x'00F3458C47FA39DDBEAD918A13F8342E'),
+(x'86052C062AAF368D84247ED0F6346A70', x'BF5C35045C6037C79E11026ABB9A3A4E');
+SELECT COUNT(*) FROM t2 WHERE (f1,f2) IN
+((x'9B9B698BCCB939EE8F1EA56C1A2E5DAA', x'E2362DBAB5EA30B5804917A0A7D881E2'),
+(x'B78B2EEAD13635088D93EA3309E24802', x'BAE56AF2B1C2397D99D58E2A06761DDB'),
+(x'55FB3B14D6B83D39859E42533906350D', x'00F3458C47FA39DDBEAD918A13F8342E'),
+(x'1606014E7C4A312F83EDC9D91BBFCACA', x'33F6068E56FD3A1D8326517F0D81CB5A'));
+COUNT(*)
+1
+CREATE TABLE t3 (f1 int, f2 int) ENGINE=MYISAM;
+INSERT INTO t3 VALUES (2,5), (2,3), (1,2), (7,8), (1,1);
+SELECT * FROM t3 WHERE (f1,f2) IN ((2, 2), (1, 2), (3, 5), (1, 1));
+f1 f2
+1 2
+1 1
+DROP TABLE t1,t2,t3;
+SET @@in_predicate_conversion_threshold= default;
diff --git a/mysql-test/main/opt_tvc.test b/mysql-test/main/opt_tvc.test
index 2d06a0a0b20..733ee0792fe 100644
--- a/mysql-test/main/opt_tvc.test
+++ b/mysql-test/main/opt_tvc.test
@@ -320,7 +320,7 @@ drop table t1, t2, t3;
set @@in_predicate_conversion_threshold= default;
--echo #
---echo # MDEV-14947: conversion of TVC with only NULL values
+--echo # MDEV-14947: conversion to TVC with only NULL values
--echo #
CREATE TABLE t1 (i INT);
@@ -342,7 +342,7 @@ SET in_predicate_conversion_threshold= default;
DROP TABLE t1;
--echo #
---echo # MDEV-14835: conversion of TVC with BIGINT or YEAR values
+--echo # MDEV-14835: conversion to TVC with BIGINT or YEAR values
--echo #
SET @@in_predicate_conversion_threshold= 2;
@@ -360,3 +360,39 @@ SELECT * FROM t2 WHERE y IN ('2009','2011');
DROP TABLE t1,t2;
SET @@in_predicate_conversion_threshold= default;
+
+--echo #
+--echo # MDEV-17222: conversion to TVC with no names for constants
+--echo # conversion to TVC with the same constants in the first row
+--echo #
+
+SET @@in_predicate_conversion_threshold= 2;
+
+CREATE TABLE t1 (f BINARY(16)) ENGINE=MYISAM;
+INSERT INTO t1 VALUES
+(x'BAE56AF2B1C2397D99D58E2A06761DDB'), (x'9B9B698BCCB939EE8F1EA56C1A2E5DAA'),
+(x'A0A1C4FE39A239BABD3E0D8985E6BEA5');
+
+SELECT COUNT(*) FROM t1 WHERE f IN
+(x'9B9B698BCCB939EE8F1EA56C1A2E5DAA', x'E2362DBAB5EA30B5804917A0A7D881E2',
+ x'B78B2EEAD13635088D93EA3309E24802', x'BAE56AF2B1C2397D99D58E2A06761DDB');
+
+CREATE TABLE t2 (f1 BINARY(16), f2 BINARY(16)) ENGINE=MYISAM;
+INSERT INTO t2 VALUES
+(x'55FB3B14D6B83D39859E42533906350D', x'00F3458C47FA39DDBEAD918A13F8342E'),
+(x'86052C062AAF368D84247ED0F6346A70', x'BF5C35045C6037C79E11026ABB9A3A4E');
+
+SELECT COUNT(*) FROM t2 WHERE (f1,f2) IN
+((x'9B9B698BCCB939EE8F1EA56C1A2E5DAA', x'E2362DBAB5EA30B5804917A0A7D881E2'),
+ (x'B78B2EEAD13635088D93EA3309E24802', x'BAE56AF2B1C2397D99D58E2A06761DDB'),
+ (x'55FB3B14D6B83D39859E42533906350D', x'00F3458C47FA39DDBEAD918A13F8342E'),
+ (x'1606014E7C4A312F83EDC9D91BBFCACA', x'33F6068E56FD3A1D8326517F0D81CB5A'));
+
+CREATE TABLE t3 (f1 int, f2 int) ENGINE=MYISAM;
+INSERT INTO t3 VALUES (2,5), (2,3), (1,2), (7,8), (1,1);
+
+SELECT * FROM t3 WHERE (f1,f2) IN ((2, 2), (1, 2), (3, 5), (1, 1));
+
+DROP TABLE t1,t2,t3;
+
+SET @@in_predicate_conversion_threshold= default;
diff --git a/sql/sql_tvc.cc b/sql/sql_tvc.cc
index 188ba8c4629..a5085fdfc58 100644
--- a/sql/sql_tvc.cc
+++ b/sql/sql_tvc.cc
@@ -470,6 +470,7 @@ bool Item_func_in::create_value_list_for_tvc(THD *thd,
for (uint i=1; i < arg_count; i++)
{
+ char col_name[8];
List<Item> *tvc_value;
if (!(tvc_value= new (thd->mem_root) List<Item>()))
return true;
@@ -480,13 +481,27 @@ bool Item_func_in::create_value_list_for_tvc(THD *thd,
for (uint j=0; j < row_list->cols(); j++)
{
+ if (i == 1)
+ {
+ sprintf(col_name, "_col_%i", j+1);
+ row_list->element_index(j)->set_name(thd, col_name, strlen(col_name),
+ thd->charset());
+ }
if (tvc_value->push_back(row_list->element_index(j),
thd->mem_root))
return true;
}
}
- else if (tvc_value->push_back(args[i]->real_item()))
- return true;
+ else
+ {
+ if (i == 1)
+ {
+ sprintf(col_name, "_col_%i", 1);
+ args[i]->set_name(thd, col_name, strlen(col_name), thd->charset());
+ }
+ if (tvc_value->push_back(args[i]->real_item()))
+ return true;
+ }
if (values->push_back(tvc_value, thd->mem_root))
return true;