Horton

Introduce hash_search_with_hash_value() function

Alexander Korotkov <akorotkov@postgresql.org>

View on postgr.es
Commit: d0f020037e19c33c74d683eb7e0c7cc5725294b4
Author: Alexander Korotkov <akorotkov@postgresql.org>
Date: 2024-08-07T04:06:17Z
Releases: 18.0 
Introduce hash_search_with_hash_value() function

This new function iterates hash entries with given hash values.  This function
is designed to avoid full sequential hash search in the syscache invalidation
callbacks.

Discussion: https://postgr.es/m/5812a6e5-68ae-4d84-9d85-b443176966a1%40sigaev.ru
Author: Teodor Sigaev
Reviewed-by: Aleksander Alekseev, Tom Lane, Michael Paquier, Roman Zharkov
Reviewed-by: Andrei Lepikhov

Files

PathChange+/−
src/backend/utils/hash/dynahash.c modified +38 −0
src/include/utils/hsearch.h modified +5 −0

Discussion