pg_stat_statements behavior in crash recovery - Mailing list pgsql-performance

From Sameer Thakur
Subject pg_stat_statements behavior in crash recovery
Date
Msg-id CABzZFEvZiUB7iMgn=Dj7-RJ9KDTVHmcCPKy-n8wWZzufA4b8zg@mail.gmail.com
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Responses Re: pg_stat_statements behavior in crash recovery
List pgsql-performance
Hello,
I understand that when the pg_stat_statements.save=true the statement statistics are saved at global/pg_stat_statements.stat. This file is read on next startup and then deleted.
If there is a crash i understand that pg_stat_statements.stat file is not created even if  pg_stat_statements.save=true.
 If the crash happened before pg_stat_statements.stat file  is deleted then, on recovery, is that pg_stat_statements.stat file deleted?
On crash recovery, are statement statistics reset ,to same values as would be the case on normal startup in the case pg_stat_statements.save=false?
Thank you
Sameer

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