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Cache opaque handle for GUC option to avoid repeasted lookups.

author Jeff Davis <jdavis@postgresql.org>

Fri, 8 Dec 2023 19:16:01 +0000 (11:16 -0800)

committer Jeff Davis <jdavis@postgresql.org>

Fri, 8 Dec 2023 19:16:01 +0000 (11:16 -0800)

commit 867dd2dc8704e58636b8599f61ada3d83c7e6473

tree db81dcac5eef5d9d54dc2c5739808f50beb59907 tree

parent c9c0589fda0edc46b8f5e7362b04636c0c4f0723 commit | diff

Cache opaque handle for GUC option to avoid repeasted lookups.

When setting GUCs from proconfig, performance is important, and hash
lookups in the GUC table are significant.

Per suggestion from Robert Haas.

Discussion: https://postgr.es/m/CA+TgmoYpKxhR3HOD9syK2XwcAUVPa0+ba0XPnwWBcYxtKLkyxA@mail.gmail.com
Reviewed-by: John Naylor

src/backend/utils/fmgr/fmgr.c diff | blob | blame | history

src/backend/utils/misc/guc.c diff | blob | blame | history

src/include/utils/guc.h diff | blob | blame | history

src/tools/pgindent/typedefs.list diff | blob | blame | history

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