frozenid
Short Description
Waiting to update pg_database.datfrozenxid and pg_database.datminmxid
Detailed Description
The session is waiting to update the catalog information which keeps track of transaction ids which have been frozen and if a vacuum operation is needed to avoid a wraparound.
How to reduce this wait
Ensure your database autovacuum enabled.
Additional Links
PostgreSQL Docs - Wait Events of Type Lock
PostgreSQL Docs - datfrozenxid
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