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Disk Usage - PostgreSQL wiki
This will report size information for all tables, that are not inherited, in the "pretty" form. Inherited tables are grouped together. WITH RECURSIVE pg_inherit(inhrelid, inhparent) AS (select inhrelid, inhparent FROM pg_inherits UNION SELECT child.inhrelid, parent.inhparent FROM pg_inherit child, pg_inherits parent WHERE child.inhparent = parent.inhrelid), pg_inherit_short AS (SELECT * FROM pg_in
F.3. auto_explain — log execution plans of slow queries
The auto_explain module provides a means for logging execution plans of slow statements automatically, without having to run EXPLAIN by hand. This is especially helpful for tracking down un-optimized queries in large applications. The module provides no SQL-accessible functions. To use it, simply load it into the server. You can load it into an individual session: LOAD 'auto_explain'; (You must be
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