diff --git a/src/backend/commands/analyze.c b/src/backend/commands/analyze.c
index 1e77752118..7ac40cb404 100644
--- a/src/backend/commands/analyze.c
+++ b/src/backend/commands/analyze.c
@@ -725,14 +725,12 @@ examine_attribute(Relation onerel, int attnum)
 	stats = (VacAttrStats *) palloc0(sizeof(VacAttrStats));
 	stats->attr = (Form_pg_attribute) palloc(ATTRIBUTE_FIXED_PART_SIZE);
 	memcpy(stats->attr, attr, ATTRIBUTE_FIXED_PART_SIZE);
-	typtuple = SearchSysCache(TYPEOID,
-							  ObjectIdGetDatum(attr->atttypid),
-							  0, 0, 0);
+	typtuple = SearchSysCacheCopy(TYPEOID,
+								  ObjectIdGetDatum(attr->atttypid),
+								  0, 0, 0);
 	if (!HeapTupleIsValid(typtuple))
 		elog(ERROR, "cache lookup failed for type %u", attr->atttypid);
-	stats->attrtype = (Form_pg_type) palloc(sizeof(FormData_pg_type));
-	memcpy(stats->attrtype, GETSTRUCT(typtuple), sizeof(FormData_pg_type));
-	ReleaseSysCache(typtuple);
+	stats->attrtype = (Form_pg_type) GETSTRUCT(typtuple);
 	stats->anl_context = anl_context;
 	stats->tupattnum = attnum;
 
@@ -761,7 +759,7 @@ examine_attribute(Relation onerel, int attnum)
 
 	if (!ok || stats->compute_stats == NULL || stats->minrows <= 0)
 	{
-		pfree(stats->attrtype);
+		heap_freetuple(typtuple);
 		pfree(stats->attr);
 		pfree(stats);
 		return NULL;