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MDEV-17376 Server fails to set ADD_PK_INDEX, DROP_PK_INDEX if unique index nominated as PK

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Problem:
========
Server fails to notify the engine by not setting the ADD_PK_INDEX and
DROP_PK_INDEX When there is a
 i) Change in candidate for primary key.
 ii) New candidate for primary key.

Fix:
====
Server sets the ADD_PK_INDEX and DROP_PK_INDEX while doing alter for the
above problematic case.
This commit is contained in:
Thirunarayanan Balathandayuthapani
2019-01-24 13:52:51 +05:30
parent cce2b45c8f
commit a0f3b9f94f
5 changed files with 196 additions and 15 deletions
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11
mysql-test/suite/innodb/r/innodb-table-online.result
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@@ -85,17 +85,6 @@ t1 CREATE TABLE `t1` (
UNIQUE KEY `c2` (`c2`),
UNIQUE KEY `c2_2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
ALTER TABLE t1 DROP INDEX c2, ALGORITHM = INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported. Reason: Dropping a primary key is not allowed without also adding a new primary key. Try ALGORITHM=COPY.
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) NOT NULL,
`c2` int(11) NOT NULL,
`c3` text NOT NULL,
UNIQUE KEY `c2` (`c2`),
UNIQUE KEY `c2_2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
ALTER TABLE t1 DROP INDEX c2, ADD PRIMARY KEY(c1);
# session default
SET DEBUG_SYNC = 'now WAIT_FOR scanned';