diff options
| author | Rodrigo <matematica.a3k@gmail.com> | 2018-12-03 21:37:28 -0500 |
|---|---|---|
| committer | Tim Graham <timograham@gmail.com> | 2018-12-06 16:03:02 -0500 |
| commit | ad191d9e011f37d79a7f2df3da881b06539aaaea (patch) | |
| tree | b882a56e665dac0f07be16c1ee4b507c5b6fbc57 /docs | |
| parent | f9a33e3c3f4cfbff60522cd54455e78c96a9d2a4 (diff) | |
Fixed #29895 -- Doc'd why MySQL's atomic DDL statements don't work for atomic migrations.
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/howto/writing-migrations.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/docs/howto/writing-migrations.txt b/docs/howto/writing-migrations.txt index f98a56c534..084513b312 100644 --- a/docs/howto/writing-migrations.txt +++ b/docs/howto/writing-migrations.txt @@ -221,7 +221,10 @@ smaller batches:: ] The ``atomic`` attribute doesn't have an effect on databases that don't support -DDL transactions (e.g. MySQL, Oracle). +DDL transactions (e.g. MySQL, Oracle). (MySQL's `atomic DDL statement support +<https://dev.mysql.com/doc/refman/en/atomic-ddl.html>`_ refers to individual +statements rather than multiple statements wrapped in a transaction that can be +rolled back.) Controlling the order of migrations =================================== |