database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

MDEV-30544 Deprecate innodb_defragment and related parameters

Browse Source 
There is a little used option innodb_defragment that would make
OPTIMIZE TABLE not rebuild the table as usual for InnoDB, but
instead cause the index B-trees to be optimized in place.

This option uses excessive locking (exclusively locking index trees).
It never covered SPATIAL INDEX or FULLTEXT INDEX. Storage space
was never reclaimed.

Because this option is not particularly useful and causes a
maintenance burden (most recently in
commit de4030e4d4),
it is best to deprecate it, to prepare for its removal.
This commit is contained in:
Marko Mäkelä
2023-02-02 07:46:08 +02:00
parent 2b13ae1a31
commit d5d7c8ba96
16 changed files with 96 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
mysql-test/suite/innodb/r/instant_alter_debug.result
View File

@ -279,10 +279,14 @@ SET GLOBAL innodb_limit_optimistic_insert_debug = @old_limit;
ALTER TABLE t1 ADD COLUMN b INT, ALGORITHM=INSTANT;
SET @old_defragment = @@innodb_defragment;
SET GLOBAL innodb_defragment = 1;
Warnings:
Warning 1287 '@@innodb_defragment' is deprecated and will be removed in a future release
OPTIMIZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 optimize status OK
SET GLOBAL innodb_defragment = @old_defragment;
Warnings:
Warning 1287 '@@innodb_defragment' is deprecated and will be removed in a future release
ALTER TABLE t1 ADD vb INT AS (b) VIRTUAL;
CHECK TABLE t1;
Table Op Msg_type Msg_text