libenchao commented on code in PR #2929:
URL: https://github.com/apache/calcite/pull/2929#discussion_r1022368836
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core/src/main/java/org/apache/calcite/sql2rel/RelDecorrelator.java:
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@@ -1790,10 +1790,11 @@ private RexNode createCaseExpression(
@Override public RexNode visitLiteral(RexLiteral literal) {
// Use nullIndicator to decide whether to project null.
- // Do nothing if the literal is null.
+ // Do nothing if the literal is null or symbol.
if (!RexUtil.isNull(literal)
Review Comment:
@dssysolyatin Thanks for your review.
It's good to have such questions and discussions.
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