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MDEV-8212 alter table - failing to ADD PRIMARY KEY IF NOT EXISTS when existing index of same as column name.

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The default name for the primary key is rather 'PRIMARY' instead of the indexed column name.
This commit is contained in:
Alexey Botchkov
2015-06-14 18:54:13 +05:00
parent fc31e3114b
commit 196528eb42
3 changed files with 30 additions and 6 deletions
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11
mysql-test/r/alter_table.result
View File

@ -1488,6 +1488,17 @@ t2 CREATE TABLE `t2` (
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
`transaction_id` int(11) NOT NULL DEFAULT '0',
KEY `transaction_id` (`transaction_id`));
ALTER TABLE t1 DROP KEY IF EXISTS transaction_id, ADD PRIMARY KEY IF NOT EXISTS (transaction_id);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`transaction_id` int(11) NOT NULL DEFAULT '0',
PRIMARY KEY (`transaction_id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
# Bug#11748057 (formerly known as 34972): ALTER TABLE statement doesn't
# identify correct column name.
#

8
mysql-test/t/alter_table.test
View File

@ -1326,6 +1326,14 @@ SHOW CREATE TABLE t2;
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
`transaction_id` int(11) NOT NULL DEFAULT '0',
KEY `transaction_id` (`transaction_id`));
ALTER TABLE t1 DROP KEY IF EXISTS transaction_id, ADD PRIMARY KEY IF NOT EXISTS (transaction_id);
SHOW CREATE TABLE t1;
DROP TABLE t1;
--echo # Bug#11748057 (formerly known as 34972): ALTER TABLE statement doesn't
--echo # identify correct column name.
--echo #

5
sql/sql_table.cc
View File

@ -5858,6 +5858,10 @@ drop_create_field:
/* If the name of the key is not specified, */
/* let us check the name of the first key part. */
if ((keyname= key->name.str) == NULL)
{
if (key->type == Key::PRIMARY)
keyname= primary_key_name;
else
{
List_iterator<Key_part_spec> part_it(key->columns);
Key_part_spec *kp;
@ -5866,6 +5870,7 @@ drop_create_field:
if (keyname == NULL)
continue;
}
}
if (key->type != Key::FOREIGN_KEY)
{
for (n_key=0; n_key < table->s->keys; n_key++)