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Diffstat (limited to 'src/backend/utils/cache/lsyscache.c')
-rw-r--r-- | src/backend/utils/cache/lsyscache.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index 85c458bc46e..6bba5f8ec4e 100644 --- a/src/backend/utils/cache/lsyscache.c +++ b/src/backend/utils/cache/lsyscache.c @@ -872,6 +872,33 @@ get_attnum(Oid relid, const char *attname) } /* + * get_attstattarget + * + * Given the relation id and the attribute number, + * return the "attstattarget" field from the attribute relation. + * + * Errors if not found. + */ +int +get_attstattarget(Oid relid, AttrNumber attnum) +{ + HeapTuple tp; + Form_pg_attribute att_tup; + int result; + + tp = SearchSysCache2(ATTNUM, + ObjectIdGetDatum(relid), + Int16GetDatum(attnum)); + if (!HeapTupleIsValid(tp)) + elog(ERROR, "cache lookup failed for attribute %d of relation %u", + attnum, relid); + att_tup = (Form_pg_attribute) GETSTRUCT(tp); + result = att_tup->attstattarget; + ReleaseSysCache(tp); + return result; +} + +/* * get_attgenerated * * Given the relation id and the attribute number, |