After concatenation two lists where the second one is from list_copy_tail do not free it

Author: Ilia Evdokimov

src/backend/parser/analyze.c

@@ -2294,6 +2294,8 @@ transformSetOperationStmt(ParseState *pstate, SelectStmt *stmt)
 										NULL,
 										false);
 
+   list_free(targetnames);
+
 	sv_namespace = pstate->p_namespace;
 	pstate->p_namespace = NIL;
 

src/backend/parser/parse_clause.c

@@ -1728,6 +1728,8 @@ transformFromClauseItem(ParseState *pstate, Node *n,
 										   j->alias,
 										   true);
 
+       list_free(res_colnames);
+
 		/* Verify that we correctly predicted the join's RT index */
 		Assert(j->rtindex == nsitem->p_rtindex);
 		/* Cross-check number of columns, too */