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Diffstat (limited to 'src/backend/utils/cache/syscache.c')
| -rw-r--r-- | src/backend/utils/cache/syscache.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/backend/utils/cache/syscache.c b/src/backend/utils/cache/syscache.c index edbc151f33e..066ce728775 100644 --- a/src/backend/utils/cache/syscache.c +++ b/src/backend/utils/cache/syscache.c @@ -1339,6 +1339,27 @@ SearchSysCacheList(int cacheId, int nkeys, } /* + * SysCacheInvalidate + * + * Invalidate entries in the specified cache, given a hash value. + * See CatCacheInvalidate() for more info. + * + * This routine is only quasi-public: it should only be used by inval.c. + */ +void +SysCacheInvalidate(int cacheId, uint32 hashValue) +{ + if (cacheId < 0 || cacheId >= SysCacheSize) + elog(ERROR, "invalid cache ID: %d", cacheId); + + /* if this cache isn't initialized yet, no need to do anything */ + if (!PointerIsValid(SysCache[cacheId])) + return; + + CatCacheInvalidate(SysCache[cacheId], hashValue); +} + +/* * Certain relations that do not have system caches send snapshot invalidation * messages in lieu of catcache messages. This is for the benefit of * GetCatalogSnapshot(), which can then reuse its existing MVCC snapshot |