[CALCITE-4215] Fix handing of null monotonicity in IdentifierNamespace

apache · Oct 1, 2020 · 0922441 · 0922441
1 parent 1f57bd4
commit 0922441
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/core/src/main/java/org/apache/calcite/sql/validate/IdentifierNamespace.java b/core/src/main/java/org/apache/calcite/sql/validate/IdentifierNamespace.java
@@ -228,7 +228,7 @@ public RelDataType validateImpl(RelDataType targetRowType) {
       final String fieldName = field.getName();
       final SqlMonotonicity monotonicity =
           resolvedNamespace.getMonotonicity(fieldName);
-      if (monotonicity != SqlMonotonicity.NOT_MONOTONIC) {
+      if (monotonicity != null && monotonicity != SqlMonotonicity.NOT_MONOTONIC) {
         builder.add(
             Pair.of((SqlNode) new SqlIdentifier(fieldName, SqlParserPos.ZERO),
                 monotonicity));