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-23805 Make Online DDL to Instant DDL when table is empty

Browse Source 
- In ha_innobase::prepare_inplace_alter_table(), InnoDB should
check whether the table is empty. If the table is empty then
server should avoid downgrading the MDL after prepare phase.
It is more like instant alter, does change only in dicationary
and metadata.

- Changed few debug test case to make non-empty DDL table
This commit is contained in:
Thirunarayanan Balathandayuthapani
2021-11-12 17:46:35 +05:30
parent c5380c30b5
commit d270525dfd
23 changed files with 73 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mysql-test/suite/innodb/r/innodb-alter-tempfile.result
View File

@ -61,7 +61,7 @@ connect con1,localhost,root,,;
BEGIN;
DELETE FROM mysql.innodb_table_stats;
connect con2,localhost,root,,;
SET DEBUG_SYNC='inplace_after_index_build SIGNAL blocked WAIT_FOR ever';
SET DEBUG_SYNC='innodb_inplace_alter_table_enter SIGNAL blocked WAIT_FOR ever';
ALTER TABLE t1 FORCE;
connection default;
SET DEBUG_SYNC='now WAIT_FOR blocked';