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'sqlite-utils enable-counts' command, closes #214

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Simon Willison 2021-01-02 20:26:39 -08:00
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docs/cli.rst
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@ -1057,6 +1057,23 @@ Use the ``--sql`` option to output the SQL that would be executed, rather than r
order by
[documents_fts].rank
.. _cli_enable_counts:
Enabling cached counts
======================
``select count(*)`` queries can take a long time against large tables. ``sqlite-utils`` can speed these up by adding triggers to maintain a ``_counts`` table, see :ref:`python_api_enable_counts`.
The ``sqlite-utils enable-counts`` command can be used to configure these triggers, either for every table in the database or for specific tables.
::
# Configure triggers for every table in the database
$ sqlite-utils enable-counts mydb.db
# Configure triggers just for specific tables
$ sqlite-utils enable-counts mydb.db table1 table2
.. _cli_vacuum:
Vacuum