Simon Willison’s Weblog

SQLite 3.53.0 (via) SQLite 3.52.0 was withdrawn so this is a pretty big release with a whole lot of accumulated user-facing and internal improvements. Some that stood out to me:

• ALTER TABLE can now add and remove NOT NULL and CHECK constraints - I've previously used my own sqlite-utils transform() method for this.
• New json_array_insert() function and its jsonb equivalent.
• Significant improvements to CLI mode, including result formatting.

The result formatting improvements come from a new library, the Query Results Formatter. I had Claude Code (on my phone) compile that to WebAssembly and build this playground interface for trying that out.