On Sat, Apr 3, 2021 at 08:29:22PM +0530, aditya desai wrote: > Hi Michael, > Thanks for your response. > Is this table partitioned? - No > How long ago was migration done? - 27th March 2021 > Has vacuum freeze and analyze of tables been done? - We ran vacuum analyze. > Was index created after populating data or reindexed after perhaps? - Index > was created after data load and reindex was executed on all tables yesterday. > Version is PostgreSQL-11 FYI, the output of these queries will show u what changes have been made to the configuration file: SELECT version(); SELECT name, current_setting(name), source FROM pg_settings WHERE source NOT IN ('default', 'override'); -- Bruce Momjian <bruce@xxxxxxxxxx> https://momjian.us EDB https://enterprisedb.com If only the physical world exists, free will is an illusion.