MySQL Invisible Indexes: A Safe Path to Dropping Unused Secondary Indexes
Use MySQL 8.0 invisible indexes to hide a suspect index from the optimizer, observe production, and restore or drop it with confidence.
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Diagnosing and Fixing High Read Latency in FaunaDB Caused by Missing or Inefficient Indexes
A step‑by‑step diagnostic guide for FaunaDB read‑latency spikes caused by missing or mis‑ordered indexes, with concrete FQL examples, stats‑driven checks, and escalation criteria.
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