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table.count now uses cached counts if db.use_counts_table

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Closes #215
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Simon Willison 2021-01-03 12:19:34 -08:00
commit 94b5023066
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docs/cli.rst
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@ -1062,7 +1062,7 @@ Use the ``--sql`` option to output the SQL that would be executed, rather than r
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`.
``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_cached_table_counts` for details.
The ``sqlite-utils enable-counts`` command can be used to configure these triggers, either for every table in the database or for specific tables.