issues: 1560982210
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| id | node_id | number | title | user | state | locked | assignee | milestone | comments | created_at | updated_at | closed_at | author_association | pull_request | body | repo | type | active_lock_reason | performed_via_github_app | reactions | draft | state_reason |
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| 1560982210 | PR_kwDOBm6k_c5IvYKw | 2008 | array facet: don't materialize unnecessary columns | 193185 | open | 0 | 8 | 2023-01-28T19:33:40Z | 2023-01-29T18:17:40Z | CONTRIBUTOR | simonw/datasette/pulls/2008 | The presence of Instead, we can select only the column we'll use. This lets SQLite's optimizer realize that the other columns in the CTE definition aren't needed. On a test table with 278K rows, 98K of which had an array, this speeds up the facet calculation from 4 sec to 1 sec. :books: Documentation preview :books:: https://datasette--2008.org.readthedocs.build/en/2008/ |
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