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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2022-07-18 15:08:37 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2022-09-24 11:15:32 -0400 |
| commit | 2bcc97da424eef7db9a5d02f81d02344925415ee (patch) | |
| tree | 13d4f04bc7dd40a0207f86aa2fc3a3b49e065674 /lib/sqlalchemy/orm/context.py | |
| parent | 332188e5680574368001ded52eb0a9d259ecdef5 (diff) | |
| download | sqlalchemy-2bcc97da424eef7db9a5d02f81d02344925415ee.tar.gz | |
implement batched INSERT..VALUES () () for executemany
the feature is enabled for all built in backends
when RETURNING is used,
except for Oracle that doesn't need it, and on
psycopg2 and mssql+pyodbc it is used for all INSERT statements,
not just those that use RETURNING.
third party dialects would need to opt in to the new feature
by setting use_insertmanyvalues to True.
Also adds dialect-level guards against using returning
with executemany where we dont have an implementation to
suit it. execute single w/ returning still defers to the
server without us checking.
Fixes: #6047
Fixes: #7907
Change-Id: I3936d3c00003f02e322f2e43fb949d0e6e568304
Diffstat (limited to 'lib/sqlalchemy/orm/context.py')
| -rw-r--r-- | lib/sqlalchemy/orm/context.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/context.py b/lib/sqlalchemy/orm/context.py index 4f24103df..dc96f8c3c 100644 --- a/lib/sqlalchemy/orm/context.py +++ b/lib/sqlalchemy/orm/context.py @@ -776,6 +776,10 @@ class FromStatement(GroupedElement, Generative, TypedReturnsRows[_TP]): return self.element._all_selected_columns @property + def _return_defaults(self): + return self.element._return_defaults if is_dml(self.element) else None + + @property def _returning(self): return self.element._returning if is_dml(self.element) else None |