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| author | J. Nick Koston <nick@koston.org> | 2023-04-24 22:32:17 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2023-04-25 10:20:36 -0400 |
| commit | 188cb4226ac7b337446689ab3498b4397d0b7d2d (patch) | |
| tree | bdd19819afc3daf710db47f536c1e2f3d6d9e855 /lib/sqlalchemy/engine | |
| parent | 32a17e60ba63f0278a754e1ab7e9ebf9460e07c5 (diff) | |
| download | sqlalchemy-188cb4226ac7b337446689ab3498b4397d0b7d2d.tar.gz | |
disable "bytes" handler for all drivers other than psycopg2
Improved row processing performance for "binary" datatypes by making the
"bytes" handler conditional on a per driver basis. As a result, the
"bytes" result handler has been disabled for nearly all drivers other than
psycopg2, all of which in modern forms support returning Python "bytes"
directly. Pull request courtesy J. Nick Koston.
Fixes: #9680
Closes: #9681
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/9681
Pull-request-sha: 4f2fd88bd9af54c54438a3b72a2f30384b0f8898
Change-Id: I394bdcbebaab272e63b13cc02f60813b7aa76839
Diffstat (limited to 'lib/sqlalchemy/engine')
| -rw-r--r-- | lib/sqlalchemy/engine/default.py | 2 | ||||
| -rw-r--r-- | lib/sqlalchemy/engine/interfaces.py | 8 |
2 files changed, 10 insertions, 0 deletions
diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py index 8992334ee..d60428287 100644 --- a/lib/sqlalchemy/engine/default.py +++ b/lib/sqlalchemy/engine/default.py @@ -157,6 +157,8 @@ class DefaultDialect(Dialect): supports_native_enum = False supports_native_boolean = False supports_native_uuid = False + returns_native_bytes = False + non_native_boolean_check_constraint = True supports_simple_order_by_label = True diff --git a/lib/sqlalchemy/engine/interfaces.py b/lib/sqlalchemy/engine/interfaces.py index 0216c155d..e4914551c 100644 --- a/lib/sqlalchemy/engine/interfaces.py +++ b/lib/sqlalchemy/engine/interfaces.py @@ -1055,6 +1055,14 @@ class Dialect(EventTarget): """ + returns_native_bytes: bool + """indicates if Python bytes() objects are returned natively by the + driver for SQL "binary" datatypes. + + .. versionadded:: 2.0.11 + + """ + construct_arguments: Optional[ List[Tuple[Type[Union[SchemaItem, ClauseElement]], Mapping[str, Any]]] ] = None |