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Diffstat (limited to 'lib/sqlalchemy/engine/base.py')
| -rw-r--r-- | lib/sqlalchemy/engine/base.py | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/sqlalchemy/engine/base.py b/lib/sqlalchemy/engine/base.py index 3ea52cd72..ddf2602c2 100644 --- a/lib/sqlalchemy/engine/base.py +++ b/lib/sqlalchemy/engine/base.py @@ -135,6 +135,27 @@ class Dialect(object): supports_default_values Indicates if the construct ``INSERT INTO tablename DEFAULT VALUES`` is supported + + supports_sequences + Indicates if the dialect supports CREATE SEQUENCE or similar. + + sequences_optional + If True, indicates if the "optional" flag on the Sequence() construct + should signal to not generate a CREATE SEQUENCE. Applies only to + dialects that support sequences. Currently used only to allow Postgresql + SERIAL to be used on a column that specifies Sequence() for usage on + other backends. + + supports_native_enum + Indicates if the dialect supports a native ENUM construct. + This will prevent types.Enum from generating a CHECK + constraint when that type is used. + + supports_native_boolean + Indicates if the dialect supports a native boolean construct. + This will prevent types.Boolean from generating a CHECK + constraint when that type is used. + """ def create_connect_args(self, url): |