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In sqlite-utils 4.2, transform() preserves a much larger array of edge-case schema definitions, including check constraints, unique constraints, and even comments describing the columns.

A key improvement: transform() now preserves more schema edge cases — check constraints, unique constraints, and column comments — when rewriting a table. ✦ AI generated

Simon Willison · Simon Willison's Weblog · 2026-08-13 · original ↗

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transform() now preserves a much larger array of edge-case schema definitions, including check constraints, unique constraints and even comments describing the columns.

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✳ sqlite-utils

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sqlite-utils 4.2 adds lots of improvements to the table.transform() feature, which supports complex alter table operations by creating a fresh table, copying across the data, and then dropping and replacing the old one.Simon Willison · Simon Willison's Weblog · conf 80%