rowid,repo,release,date,body_markdown,published_at,topics
140912432,https://github.com/simonw/sqlite-utils,https://github.com/simonw/sqlite-utils/releases/tag/3.2,2021-01-03,"This release introduces a new mechanism for speeding up `count(*)` queries using cached table counts, stored in a `_counts` table and updated by triggers. This mechanism is described in [Cached table counts using triggers](https://sqlite-utils.datasette.io/en/stable/python-api.html#python-api-cached-table-counts), and can be enabled using Python API methods or the new `enable-counts` CLI command. ([#212](https://github.com/simonw/sqlite-utils/issues/212))

- `table.enable_counts()` method for enabling these triggers on a specific table.
- `db.enable_counts()` method for enabling triggers on every table in the database. ([#213](https://github.com/simonw/sqlite-utils/issues/213))
- New `sqlite-utils enable-counts my.db` command for enabling counts on all or specific tables, see [Enabling cached counts](https://sqlite-utils.datasette.io/en/stable/cli.html#cli-enable-counts). ([#214](https://github.com/simonw/sqlite-utils/issues/214))
- New `sqlite-utils triggers` command for listing the triggers defined for a database or specific tables, see [Listing triggers](https://sqlite-utils.datasette.io/en/stable/cli.html#cli-triggers). ([#218](https://github.com/simonw/sqlite-utils/issues/218))
- New `db.use_counts_table` property which, if `True`, causes `table.count` to read from the `_counts` table. ([#215](https://github.com/simonw/sqlite-utils/issues/215))
- `table.has_counts_triggers` property revealing if a table has been configured with the new `_counts` database triggers.
- `db.reset_counts()` method and `sqlite-utils reset-counts` command for resetting the values in the `_counts` table. ([#219](https://github.com/simonw/sqlite-utils/issues/219))
- The previously undocumented `db.escape()` method has been renamed to `db.quote()` and is now covered by the documentation: [Quoting strings for use in SQL](https://sqlite-utils.datasette.io/en/stable/python-api.html#python-api-quote). ([#217](https://github.com/simonw/sqlite-utils/issues/217))
- New `table.triggers_dict` and `db.triggers_dict` introspection properties. ([#211](https://github.com/simonw/sqlite-utils/issues/211), [#216](https://github.com/simonw/sqlite-utils/issues/216))
- `sqlite-utils insert` now shows a more useful error message for invalid JSON. ([#206](https://github.com/simonw/sqlite-utils/issues/206))",2021-01-03T21:17:37Z,"[""cli"", ""click"", ""datasette"", ""datasette-io"", ""datasette-tool"", ""python"", ""sqlite"", ""sqlite-database""]"