[tx] Use WAL mode for sqlite#1054
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pcmoritz merged 2 commits intoNovaSky-AI:mainfrom Feb 8, 2026
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This pull request enables WAL mode for SQLite databases, which is a great improvement for allowing concurrent reads and writes. The implementation correctly uses SQLAlchemy events to set the necessary PRAGMAs for new connections. I've added one suggestion to improve the new function's maintainability by adding a type hint and removing a magic number. Overall, this is a solid change.
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This PR enable WAL mode to allow reading the database while it is being written to (by a single writer). We also activate busy_timeout so multiple writers will retry to avoid 'database is locked' errors.