DBExplore blog — #query-plansDBExplore engineering posts tagged query-plans.https://www.dbexplore.com/en75% of our query-plan storage was duplicatehttps://www.dbexplore.com/blog/75-percent-of-our-plan-storage-was-duplicate/https://www.dbexplore.com/blog/75-percent-of-our-plan-storage-was-duplicate/Thousands of stored plans turned out to be a few hundred distinct shapes. What a structural fingerprint keeps, what it strips, and why regressions depend on it.Thu, 27 Aug 2026 00:00:00 GMTKarthik Mquery-plansplan-regressionpostgres-internals