[CBO] user warning added if cbo didn't work

ydb-platform · Nov 25, 2024 · 224330a · 224330a
1 parent d07a485
commit 224330a
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/ydb/library/yql/dq/opt/dq_opt_join_cost_based.cpp b/ydb/library/yql/dq/opt/dq_opt_join_cost_based.cpp
@@ -357,6 +357,7 @@ TExprBase DqOptimizeEquiJoinWithCosts(
     // of the EquiJoin and n-1 argument are the parameters to EquiJoin
 
     if (!DqCollectJoinRelationsWithStats(rels, typesCtx, equiJoin, providerCollect)){
+        ctx.AddWarning(YqlIssue({}, TIssuesIds::WARNING, "Cost Based Optimizer didn't work: couldn't load statistics"));
         return node;
     }