diff options
Diffstat (limited to 'src/backend/utils/cache/syscache.c')
| -rw-r--r-- | src/backend/utils/cache/syscache.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/backend/utils/cache/syscache.c b/src/backend/utils/cache/syscache.c index 94abede512b..4e4a34bde80 100644 --- a/src/backend/utils/cache/syscache.c +++ b/src/backend/utils/cache/syscache.c @@ -77,6 +77,7 @@ #include "catalog/pg_user_mapping.h" #include "lib/qunique.h" #include "utils/catcache.h" +#include "utils/lsyscache.h" #include "utils/rel.h" #include "utils/syscache.h" @@ -1100,6 +1101,32 @@ SysCacheGetAttr(int cacheId, HeapTuple tup, } /* + * SysCacheGetAttrNotNull + * + * As above, a version of SysCacheGetAttr which knows that the attr cannot + * be NULL. + */ +Datum +SysCacheGetAttrNotNull(int cacheId, HeapTuple tup, + AttrNumber attributeNumber) +{ + bool isnull; + Datum attr; + + attr = SysCacheGetAttr(cacheId, tup, attributeNumber, &isnull); + + if (isnull) + { + elog(ERROR, + "unexpected null value in cached tuple for catalog %s column %s", + get_rel_name(cacheinfo[cacheId].reloid), + NameStr(TupleDescAttr(SysCache[cacheId]->cc_tupdesc, attributeNumber - 1)->attname)); + } + + return attr; +} + +/* * GetSysCacheHashValue * * Get the hash value that would be used for a tuple in the specified cache |