fix: upsert cache entries to prevent unique constraint errors#126
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trijpstra-fourlights merged 3 commits intomainfrom Jan 8, 2026
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fix: upsert cache entries to prevent unique constraint errors#126trijpstra-fourlights merged 3 commits intomainfrom
trijpstra-fourlights merged 3 commits intomainfrom
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Changed the cache entry save strategy from find-first-then-update-or-create to create-first-then-handle-unique-violation. This approach better handles concurrent requests where multiple instances might attempt to create the same cache entry simultaneously. By catching unique constraint violations and falling back to find-and-update, we prevent duplicate entries and ensure data consistency while maintaining the original caching behavior.
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Create a database-agnostic utility function to detect unique constraint violations across PostgreSQL, MySQL, SQLite, and SQL Server. This improves the reliability of the cache upsert logic by properly handling database-specific error codes and numbers.
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Fixes #115