diff options
| author | Hampus Dunström <hampus@dunstrom.com> | 2018-10-25 13:22:40 +0200 |
|---|---|---|
| committer | Tim Graham <timograham@gmail.com> | 2018-10-27 20:26:39 -0400 |
| commit | 5e8a07d69dee354d9e6dbda874f9454f4bc3491e (patch) | |
| tree | 1828f6c66429ad7fb8e703822ce43c0cda5d02ec /django/db/backends/sqlite3/schema.py | |
| parent | 4c13b907023692f75f37ba980cf2215e413aa1d8 (diff) | |
Fixed #29763 -- Added support for column renaming on SQLite.
Diffstat (limited to 'django/db/backends/sqlite3/schema.py')
| -rw-r--r-- | django/db/backends/sqlite3/schema.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/django/db/backends/sqlite3/schema.py b/django/db/backends/sqlite3/schema.py index 8710e9d0e2..99382d35ce 100644 --- a/django/db/backends/sqlite3/schema.py +++ b/django/db/backends/sqlite3/schema.py @@ -331,6 +331,14 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor): def _alter_field(self, model, old_field, new_field, old_type, new_type, old_db_params, new_db_params, strict=False): """Perform a "physical" (non-ManyToMany) field update.""" + # Use "ALTER TABLE ... RENAME COLUMN" if only the column name + # changed and there aren't any constraints. + if (self.connection.features.can_alter_table_rename_column and + old_field.column != new_field.column and + self.column_sql(model, old_field) == self.column_sql(model, new_field) and + not (old_field.remote_field and old_field.db_constraint or + new_field.remote_field and new_field.db_constraint)): + return self.execute(self._rename_field_sql(model._meta.db_table, old_field, new_field, new_type)) # Alter by remaking table self._remake_table(model, alter_field=(old_field, new_field)) # Rebuild tables with FKs pointing to this field if the PK type changed. |
