diff options
| author | Thirunarayanan Balathandayuthapani <thiru@mariadb.com> | 2021-11-11 12:56:33 +0530 |
|---|---|---|
| committer | Thirunarayanan Balathandayuthapani <thiru@mariadb.com> | 2021-11-11 15:12:30 +0530 |
| commit | 33b64f89803042849b16089754506532a46a7eff (patch) | |
| tree | 2e8f583e45f453fd04c87541e8642981ac1eb3ba /sql/handler.h | |
| parent | 3480c3f95b27c8f3e6f4ecbe6262e5b80109c0d4 (diff) | |
| download | mariadb-git-bb-10.6-MDEV-23805.tar.gz | |
MDEV-23805 Make Online DDL to Instant DDL when table is emptybb-10.6-MDEV-23805
- 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
Diffstat (limited to 'sql/handler.h')
| -rw-r--r-- | sql/handler.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sql/handler.h b/sql/handler.h index 5fe06ecd0bc..f8ae517b19b 100644 --- a/sql/handler.h +++ b/sql/handler.h @@ -2700,6 +2700,9 @@ public: /** true when InnoDB should abort the alter when table is not empty */ const bool error_if_not_empty; + /** True when InnoDB should avoid downgrading the MDL */ + bool mdl_exclusive_after_prepare= false; + Alter_inplace_info(HA_CREATE_INFO *create_info_arg, Alter_info *alter_info_arg, KEY *key_info_arg, uint key_count_arg, |