index df966b18f3452784672fc9c3eea80b0d2b6e941a..02e46a6eaafdc09cd75b8f1ac23636b78f9beff9 100644 (file)
@@ -561,6 +561,34 @@ get_useful_group_keys_orderings(PlannerInfo *root, Path *path)
}
}
+#ifdef USE_ASSERT_CHECKING
+ {
+ PathKeyInfo *pinfo = linitial_node(PathKeyInfo, infos);
+ ListCell *lc;
+
+ /* Test consistency of info structures */
+ for_each_from(lc, infos, 1)
+ {
+ ListCell *lc1,
+ *lc2;
+
+ info = lfirst_node(PathKeyInfo, lc);
+
+ Assert(list_length(info->clauses) == list_length(pinfo->clauses));
+ Assert(list_length(info->pathkeys) == list_length(pinfo->pathkeys));
+ Assert(list_difference(info->clauses, pinfo->clauses) == NIL);
+ Assert(list_difference_ptr(info->pathkeys, pinfo->pathkeys) == NIL);
+
+ forboth(lc1, info->clauses, lc2, info->pathkeys)
+ {
+ SortGroupClause *sgc = lfirst_node(SortGroupClause, lc1);
+ PathKey *pk = lfirst_node(PathKey, lc2);
+
+ Assert(pk->pk_eclass->ec_sortref == sgc->tleSortGroupRef);
+ }
+ }
+ }
+#endif
return infos;
}