diff options
| author | Michael Paquier | 2024-08-22 01:48:25 +0000 |
|---|---|---|
| committer | Michael Paquier | 2024-08-22 01:48:25 +0000 |
| commit | 490f869d92e5db38731b85b9be3cffdc65461808 (patch) | |
| tree | 5db579fea54c1b55f8a590b732c5ca4dac73a91d | |
| parent | a8395677840c37f6988d7d6420d551d0b744e6bd (diff) | |
Create syscache entries for pg_extension
Two syscache identifiers are added for extension names and OIDs.
Shared libraries of extensions might want to invalidate or update their
own caches whenever a CREATE, ALTER or DROP EXTENSION command is run for
their extension (in any backend). Right now this is non-trivial to do
correctly and efficiently, but, if an extension catalog is part of a
syscache, this could simply be done by registering an callback using
CacheRegisterSyscacheCallback for the relevant syscache.
Another case where this is useful is a loaded library where some of its
code paths rely on some objects of the extension to exist; it can be
simpler and more efficient to do an existence check directly on the
extension through the syscache.
Author: Jelte Fennema-Nio
Reviewed-by: Alexander Korotkov, Pavel Stehule
Discussion: https://postgr.es/m/CAGECzQTWm9sex719Hptbq4j56hBGUti7J9OWjeMobQ1ccRok9w@mail.gmail.com
| -rw-r--r-- | src/include/catalog/pg_extension.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/catalog/pg_extension.h b/src/include/catalog/pg_extension.h index cdfacc0930..673181b39a 100644 --- a/src/include/catalog/pg_extension.h +++ b/src/include/catalog/pg_extension.h @@ -56,4 +56,7 @@ DECLARE_TOAST(pg_extension, 4147, 4148); DECLARE_UNIQUE_INDEX_PKEY(pg_extension_oid_index, 3080, ExtensionOidIndexId, pg_extension, btree(oid oid_ops)); DECLARE_UNIQUE_INDEX(pg_extension_name_index, 3081, ExtensionNameIndexId, pg_extension, btree(extname name_ops)); +MAKE_SYSCACHE(EXTENSIONOID, pg_extension_oid_index, 2); +MAKE_SYSCACHE(EXTENSIONNAME, pg_extension_name_index, 2); + #endif /* PG_EXTENSION_H */ |