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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2021-12-22 08:34:15 -0500 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2022-02-10 11:09:22 -0500 |
| commit | 22ed657827b487df9012def07271aed01bd4ae12 (patch) | |
| tree | f1c0693953df077c00840321d3dbf563351d2698 /lib/sqlalchemy/sql/_typing.py | |
| parent | 449389a45f358300ba95f7d03c7b94b64703e31a (diff) | |
| download | sqlalchemy-22ed657827b487df9012def07271aed01bd4ae12.tar.gz | |
use QueuePool for sqlite file databases
The SQLite dialect now defaults to :class:`_pool.QueuePool` when a file
based database is used. This is set along with setting the
``check_same_thread`` parameter to ``False``. It has been observed that the
previous approach of defaulting to :class:`_pool.NullPool`, which does not
hold onto database connections after they are released, did in fact have a
measurable negative performance impact. As always, the pool class is always
customizable via the :paramref:`_sa.create_engine.poolclass` parameter.
Fixes: #7490
Change-Id: I5f6c259def0ef43d401c6163dc99f651e519148d
Diffstat (limited to 'lib/sqlalchemy/sql/_typing.py')
0 files changed, 0 insertions, 0 deletions