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Thread: Performance issues after pg_upgrade from pg 11 to pg 12.5

Performance issues after pg_upgrade from pg 11 to pg 12.5

From
Mai Peng
Date:
Hello,

After the pg_upgrade, and analyze_new_cluster, I’ve got serious performance issues. Some queries ( big insert) take
morethan 3 or 4 times to execute. 
Thanks for your help.