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Merged
pablogsal merged 16 commits into from
Nov 1, 2021
Merged

bpo-45243: Add support for setting/getting sqlite3 connection limits #28463

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bpo-45243: Add support for setting/getting sqlite3 connection limits
Sep 19, 2021
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Add docs
Sep 19, 2021
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Add NEWS
Sep 19, 2021
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Add What's New
Sep 19, 2021
76d2c2b
SQLITE_LIMIT_WORKER_THREADS appeared in SQLite 3.8.7
Sep 19, 2021
2373a95
Merge branch 'main' into sqlite-limits
Oct 6, 2021
a51f286
Remove debug print
Oct 7, 2021
e093a99
Raise ProgrammingError if limit is out of bounds
Oct 7, 2021
fced0ce
SQLITE_LIMIT_WORKER_THREADS is defined in SQLite 3.8.7, not 3.8.3
Oct 7, 2021
4f7c2c0
SQLite version is found in sqlite3.sqlite_version_info, not sqlite3.v…
Oct 7, 2021
5e2ae97
Improve argument spec
Oct 8, 2021
1c36d95
Drop 'Non-standard' from docstring
Oct 8, 2021
eb6c233
Expand test suite
Oct 21, 2021
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Merge branch 'main' into sqlite-limits
Oct 21, 2021
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Merge branch 'main' into sqlite-limits
Oct 31, 2021
872f1ef
Merge branch 'main' into sqlite-limits
Nov 1, 2021
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Erlend E. Aasland committed Sep 19, 2021
commit 6fd1c74f8abaa2657198f15c391a74934ea3c05b
34 changes: 34 additions & 0 deletions Doc/library/sqlite3.rst
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Expand Up @@ -624,6 +624,40 @@ Connection Objects
.. versionadded:: 3.7


.. method:: getlimit(limit, /)

Get a connection run-time limit. *limit* is the limit category to be
queried.

Example, query the maximum length of an SQL statement::

import sqlite3
con = sqlite3.connect(":memory:")
lim = con.getlimit(sqlite3.SQLITE_LIMIT_SQL_LENGTH)
print(f"SQLITE_LIMIT_SQL_LENGTH={lim}")

.. versionadded:: 3.11


.. method:: setlimit(limit, value, /)

Set a connection run-time limit. *limit* is the limit category to be set.
*value* is the new limit. If the new limit is a negative number, the
limit is unchanged.

Attempts to increase a limit above its hard upper bound are silently
truncated to the hard upper bound. Regardless of whether or not the limit
was changed, the prior value of the limit is returned.

Example, limit the number of attached databases to 1::

import sqlite3
con = sqlite3.connect(":memory:")
con.setlimit(sqlite3.SQLITE_LIMIT_ATTACHED, 1)

.. versionadded:: 3.11


.. _sqlite3-cursor-objects:

Cursor Objects
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