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| author | Simon Charette <charette.s@gmail.com> | 2018-12-13 23:36:02 -0500 |
|---|---|---|
| committer | Carlton Gibson <carlton.gibson@noumenal.es> | 2018-12-17 11:03:44 +0100 |
| commit | 1939dd49d142b65fa22eb5f85cee0d20864d3730 (patch) | |
| tree | 23abf79091c83ea4b131a48bb737b04cab05d012 | |
| parent | 894cb13779e6d092974c873bd2cf1452554d2e06 (diff) | |
Fixed #29928 -- Enabled deferred constraint checks on SQLite 3.20+.
Refs #11665, #14204.
Thanks Michel Samia for the report.
| -rw-r--r-- | django/db/backends/sqlite3/features.py | 3 | ||||
| -rw-r--r-- | docs/releases/2.2.txt | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/django/db/backends/sqlite3/features.py b/django/db/backends/sqlite3/features.py index c61b0609d5..685c60a443 100644 --- a/django/db/backends/sqlite3/features.py +++ b/django/db/backends/sqlite3/features.py @@ -38,6 +38,9 @@ class DatabaseFeatures(BaseDatabaseFeatures): # Is "ALTER TABLE ... RENAME COLUMN" supported? can_alter_table_rename_column = Database.sqlite_version_info >= (3, 25, 0) supports_parentheses_in_compound = False + # Deferred constraint checks can be emulated on SQLite < 3.20 but not in a + # reasonably performant way. + can_defer_constraint_checks = Database.version_info >= (3, 20, 0) @cached_property def supports_stddev(self): diff --git a/docs/releases/2.2.txt b/docs/releases/2.2.txt index d99cebd875..e6162a7fe4 100644 --- a/docs/releases/2.2.txt +++ b/docs/releases/2.2.txt @@ -265,6 +265,11 @@ Tests * The new :setting:`ORACLE_MANAGED_FILES <TEST_ORACLE_MANAGED_FILES>` test database setting allows using Oracle Managed Files (OMF) tablespaces. +* Deferrable database constraints are now checked at the end of each + :class:`~django.test.TestCase` test on SQLite 3.20+ as well. These checks + were previously skipped on SQLite because they required expensive table + introspection before version 3.20 introduced native support. + URLs ~~~~ |