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Fast-path locking is referenced by pg_stat_lock.fastpath_exceeded, by pg_locks.fastpath, and in the GUC max_locks_per_transaction. However, the documentation has never described in details how this works; one would need to look at the internals of lock.c, mostly around EligibleForRelationFastPath(). This commit adds a new subsection called "Fast-Path Locking" to the area dedicated to locks, with the three places mentioned above linking to it. Author: Tatsuya Kawata <kawatatatsuya0913@gmail.com> Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Reviewed-by: Michael Paquier <michael@paquier.xyz> Discussion: https://postgr.es/m/CAHza6qdKo9dcPy70QBi88vpqhS2gYWViS8=Uj=-+QQbR=ONgSQ@mail.gmail.com |
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