Postmortem: SQLite to Postgres Migration Impact on Local Runner Stages

This postmortem details transient failures observed in local runner stages, specifically affecting the ‘editor’, ‘entity_verifier’, and ‘vision’ services. The root cause was identified as an incomplete cleanup of SQLite-specific SQL during a recent migration to Postgres. The issue manifested as `stage_failed` errors, which were resolved by identifying and rewriting the remaining SQLite queries to native Postgres syntax. This incident highlights the importance of thorough testing and validation during database migrations to ensure all dependencies are updated.

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