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Tag: database optimization

How to Find and Fix Slow Database Queries in WordPress

Database Optimization

February 27, 2026 • Views: 1

How to Find and Fix Slow Database Queries in WordPress

Slow database queries hide inside plugin loops and poorly-written WP_Query calls. This guide covers SAVEQUERIES, Query Monitor, fixing N+1 loops, update_post_meta_cache, MySQL EXPLAIN, adding wp_postmeta indexes, and transient caching.

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Custom database indexes for WordPress wp_postmeta query optimization

Database Optimization • WordPress

February 23, 2026 • Views: 11

How to Add Custom Database Indexes to wp_postmeta in WordPress

Learn how to add custom database indexes to wp_postmeta in WordPress. This step-by-step guide covers diagnosing slow queries with EXPLAIN, adding meta_value indexes, automating with an mu-plugin, and benchmarking query performance improvements of 80% or more.

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