Pg_stat_user_indexes

How to Find Index Bloat and Wasted Space in PostgreSQL Just like tables, PostgreSQL indexes can become bloated over time. When rows are updated or deleted, the old index entries are not removed immediately. They stay in the index as dead entries, wasting space and slowing down index scans. B-tree indexes are the most …

PostgreSQL Statistics Settings Query Guide This PostgreSQL query retrieves all statistics collection configuration settings from the pg_settings system view. These parameters control what runtime data PostgreSQL collects about query execution, table activity, and performance, feeding into the pg_stat_* monitoring …

List PostgreSQL Tables by Size with SQL This PostgreSQL query lists all tables in the current database sorted by their total size, largest first. It uses pg_total_relation_size() to include the table data, indexes, TOAST storage, and free space map in the size calculation. Purpose and Overview Disk space pressure is a …

Keeping PostgreSQL Queries Speeding Along: Monitoring Index Cache Hit Rates For a smooth-running PostgreSQL database, ensuring efficient access to frequently used data is crucial. Indexes act as shortcuts, speeding up queries. But how well are those indexes utilized? This post explores a SQL query that helps you …

Monitoring PostgreSQL Index Usage: Keeping Your Queries Speedy In the fast-paced world of web applications, ensuring efficient database queries is paramount. PostgreSQL's powerful indexing capabilities play a crucial role in achieving optimal performance. This post delves into a SQL query that helps you monitor index …