Boosting Query Performance with Memoize in PostgreSQL

PostgreSQL 14 introduces a powerful feature called memoize , which enhances query performance by caching results from parameterized scans inside nested-loop joins. This optimization allows PostgreSQL to skip redundant scans, significantly speeding up nested lookups. In this blog, we'll explore how memoize works and demonstrate its benefits with a practical example. Understanding Memoize The memoize functionality enables or disables the query planner's use of memoize plans for caching results from parameterized scans inside nested-loop joins. When enabled, this plan type allows scans to the