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-rw-r--r--mysql-test/r/mdev_14586.result44
-rw-r--r--mysql-test/t/mdev_14586.test27
-rw-r--r--sql/key.cc6
3 files changed, 75 insertions, 2 deletions
diff --git a/mysql-test/r/mdev_14586.result b/mysql-test/r/mdev_14586.result
new file mode 100644
index 00000000000..f6c2095d3cd
--- /dev/null
+++ b/mysql-test/r/mdev_14586.result
@@ -0,0 +1,44 @@
+create table t1(a bit(1), b int auto_increment ,id int, index(a,b));
+insert into t1 values(1,null,1);
+insert into t1 values(1,null,2);
+insert into t1 values(0,null,3);
+insert into t1 values(0,null,4);
+select a+0, b as auto_increment , id from t1 order by id;
+a+0 auto_increment id
+1 1 1
+1 2 2
+0 1 3
+0 2 4
+drop table t1;
+create table t1(a int auto_increment, b bit(5) ,id int, index (b,a));
+insert into t1 values(null,b'1',1);
+insert into t1 values(null,b'1',2);
+insert into t1 values(null,b'11',3);
+insert into t1 values(null,b'11',4);
+select a as auto_increment, b+0, id from t1 order by id;
+auto_increment b+0 id
+1 1 1
+2 1 2
+1 3 3
+2 3 4
+drop table t1;
+create table t1(a bit(1), b int auto_increment , c bit(1) , d bit(1), id int,index(a,c,b,d));
+insert into t1 values(1,null,1,1,1);
+insert into t1 values(1,null,1,1,2);
+insert into t1 values(0,null,1,1,3);
+insert into t1 values(1,null,0,1,4);
+select a+0, b as auto_increment, c+0, d+0, id from t1 order by id;
+a+0 auto_increment c+0 d+0 id
+1 1 1 1 1
+1 2 1 1 2
+0 1 1 1 3
+1 1 0 1 4
+drop table t1;
+CREATE TABLE t1 (b BIT(1), pk INTEGER AUTO_INCREMENT PRIMARY KEY);
+ALTER TABLE t1 ADD INDEX(b,pk);
+INSERT INTO t1 VALUES (1,b'1');
+ALTER TABLE t1 DROP PRIMARY KEY;
+select b+0, pk as auto_increment from t1;
+b+0 auto_increment
+1 1
+DROP TABLE t1;
diff --git a/mysql-test/t/mdev_14586.test b/mysql-test/t/mdev_14586.test
new file mode 100644
index 00000000000..8b3d3780151
--- /dev/null
+++ b/mysql-test/t/mdev_14586.test
@@ -0,0 +1,27 @@
+create table t1(a bit(1), b int auto_increment ,id int, index(a,b));
+insert into t1 values(1,null,1);
+insert into t1 values(1,null,2);
+insert into t1 values(0,null,3);
+insert into t1 values(0,null,4);
+select a+0, b as auto_increment , id from t1 order by id;
+drop table t1;
+create table t1(a int auto_increment, b bit(5) ,id int, index (b,a));
+insert into t1 values(null,b'1',1);
+insert into t1 values(null,b'1',2);
+insert into t1 values(null,b'11',3);
+insert into t1 values(null,b'11',4);
+select a as auto_increment, b+0, id from t1 order by id;
+drop table t1;
+create table t1(a bit(1), b int auto_increment , c bit(1) , d bit(1), id int,index(a,c,b,d));
+insert into t1 values(1,null,1,1,1);
+insert into t1 values(1,null,1,1,2);
+insert into t1 values(0,null,1,1,3);
+insert into t1 values(1,null,0,1,4);
+select a+0, b as auto_increment, c+0, d+0, id from t1 order by id;
+drop table t1;
+CREATE TABLE t1 (b BIT(1), pk INTEGER AUTO_INCREMENT PRIMARY KEY);
+ALTER TABLE t1 ADD INDEX(b,pk);
+INSERT INTO t1 VALUES (1,b'1');
+ALTER TABLE t1 DROP PRIMARY KEY;
+select b+0, pk as auto_increment from t1;
+DROP TABLE t1;
diff --git a/sql/key.cc b/sql/key.cc
index 110b13000ed..700bf6a05a6 100644
--- a/sql/key.cc
+++ b/sql/key.cc
@@ -62,7 +62,8 @@ int find_ref_key(KEY *key, uint key_count, uchar *record, Field *field,
i < (int) key_count ;
i++, key_info++)
{
- if (key_info->key_part[0].offset == fieldpos)
+ if (key_info->key_part[0].offset == fieldpos &&
+ key_info->key_part[0].field->type() != MYSQL_TYPE_BIT)
{ /* Found key. Calc keylength */
*key_length= *keypart= 0;
return i; /* Use this key */
@@ -81,7 +82,8 @@ int find_ref_key(KEY *key, uint key_count, uchar *record, Field *field,
j < key_info->key_parts ;
j++, key_part++)
{
- if (key_part->offset == fieldpos)
+ if (key_part->offset == fieldpos &&
+ key_part->field->type() != MYSQL_TYPE_BIT)
{
*keypart= j;
return i; /* Use this key */