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When Index Hit Stats Go Stale: Two Positions for SQL Review Agents

This story is from 2026-09-04. It is preserved in the archive; the latest stories are on the live feed.

A staging replica marked idx_orders_created_at as unused after a statistics reset left idx_scan sitting at twelve. The month-end reconciliation job that still needs that index was only three calendar days away. The review comment read like measured evidence rather than a guess from a truncated snap…

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  1. 2026-09-04 17:48 · DEV Community — AI
    When Index Hit Stats Go Stale: Two Positions for SQL Review Agents

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