Technical solutions / PostgreSQL
Find a clear diagnosis before you change anything. Each guide explains the symptoms, likely causes, a contextual solution and how to verify the result.
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Classify endpoint failures separately from HBA matching, credentials and object privileges. Use existing authorized read-only evidence without weakening authentication.
Read solutionSeparate excessive query work, estimation errors and waits before proposing an index or configuration change. Preserve result semantics while comparing evidence.
Read solutionFind the initiating error behind SQLSTATE 25P02 and distinguish lock waits, deadlocks and serialization failures. Restore clean connection state before reuse.
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