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MDEV-16110 ALTER with ALGORITHM=INPLACE breaks temporary table with virtual columns

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Part one, non-temporary tables.

Rrenaming a column can make destructive changes
to the TABLE. This TABLE cannot be used anymore
and needs to be reopened even if ALTER TABLE
was aborted with an error.
This commit is contained in:
Sergei Golubchik
2018-05-14 23:24:26 +02:00
parent c29312421e
commit 77cd754229
3 changed files with 21 additions and 0 deletions
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mysql-test/r/alter_table_errors.result Normal file
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create table t (a int, v int as (a)) engine=innodb;
alter table t change column a b tinyint, algorithm=inplace;
ERROR 0A000: ALGORITHM=INPLACE is not supported. Reason: Cannot change column type INPLACE. Try ALGORITHM=COPY
show create table t;
Table Create Table
t CREATE TABLE `t` (
`a` int(11) DEFAULT NULL,
`v` int(11) GENERATED ALWAYS AS (`a`) VIRTUAL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
drop table t;