chunweilei commented on a change in pull request #1186: [CALCITE-3003]
AssertionError when GROUP BY nested field
URL: https://github.com/apache/calcite/pull/1186#discussion_r279174752
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File path:
core/src/main/java/org/apache/calcite/sql/validate/SqlValidatorUtil.java
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@@ -836,7 +836,7 @@ private static ImmutableBitSet
analyzeGroupExpr(SqlValidatorScope scope,
SqlIdentifier expr = (SqlIdentifier) expandedGroupExpr;
// column references should be fully qualified.
- assert expr.names.size() == 2;
+ assert expr.names.size() >= 2;
String originalRelName = expr.names.get(0);
String originalFieldName = expr.names.get(1);
Review comment:
Maybe we should check whether the first name is the name of a table alias in
scope.
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