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Revise sinval code to remove no-longer-used tuple TID from inval messages.

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This requires adjusting the API for syscache callback functions: they now
get a hash value, not a TID, to identify the target tuple.  Most of them
weren't paying any attention to that argument anyway, but plancache did
require a small amount of fixing.

Also, improve performance a trifle by avoiding sending duplicate inval
messages when a heap_update isn't changing the catcache lookup columns.
This commit is contained in:
Tom Lane
2011-08-16 19:27:46 -04:00
parent 632ae6829f
commit b5282aa893
19 changed files with 210 additions and 211 deletions
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4
src/backend/utils/adt/acl.c
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@@ -112,7 +112,7 @@ static AclMode convert_tablespace_priv_string(text *priv_type_text);
static AclMode convert_role_priv_string(text *priv_type_text);
static AclResult pg_role_aclcheck(Oid role_oid, Oid roleid, AclMode mode);
static void RoleMembershipCacheCallback(Datum arg, int cacheid, ItemPointer tuplePtr);
static void RoleMembershipCacheCallback(Datum arg, int cacheid, uint32 hashvalue);
static Oid get_role_oid_or_public(const char *rolname);
@@ -4355,7 +4355,7 @@ initialize_acl(void)
* Syscache inval callback function
*/
static void
RoleMembershipCacheCallback(Datum arg, int cacheid, ItemPointer tuplePtr)
RoleMembershipCacheCallback(Datum arg, int cacheid, uint32 hashvalue)
{
/* Force membership caches to be recomputed on next use */
cached_privs_role = InvalidOid;