Oracle to Postgres — Index Skip Scan

I have been working on Oracle to Postgres migration and it has been a fun ride. One of the recent encounters during migration was performance issue in Postgres for a query, actually quite a simple query. SELECT count(*) AS num_incidents FROM audit_cs acs INNER JOIN audit_changes ac ON acs.audit_change_id = ac.audit_change_set WHERE acs.object_id=$1 AND ac.path … Continue reading Oracle to Postgres — Index Skip Scan

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