fix join check

apache · Jan 21, 2025 · bb15ece · bb15ece
1 parent 1e39c65
commit bb15ece
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/...de/src/main/java/org/apache/iotdb/db/queryengine/plan/planner/TableOperatorGenerator.java b/...de/src/main/java/org/apache/iotdb/db/queryengine/plan/planner/TableOperatorGenerator.java
@@ -1501,7 +1501,7 @@ private void semanticCheckForJoin(JoinNode node) {
           !node.getFilter().isPresent() || node.getFilter().get().equals(TRUE_LITERAL),
           String.format(
               "Filter is not supported in %s. Filter is %s.",
-              node.getJoinType(), node.getFilter().get()));
+              node.getJoinType(), node.getFilter().map(Expression::toString).orElse("null")));
       checkArgument(
           !node.getCriteria().isEmpty(),
           String.format("%s must have join keys.", node.getJoinType()));