zzwqqq commented on code in PR #5385:
URL: https://github.com/apache/calcite/pull/5385#discussion_r4454230045
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core/src/main/java/org/apache/calcite/sql2rel/RelDecorrelator.java:
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@@ -1490,10 +1571,20 @@ private static boolean
isNonNegativeIntegralLiteral(@Nullable RexNode node) {
requireNonNull(mapNewInputToOutputs.get(newInput),
() -> "mapNewInputToOutputs.get(" + newInput + ")");
- RelNode distinct = relBuilder.push(newInput)
+ RelNode projected = relBuilder.push(newInput)
.project(relBuilder.fields(positions))
- .distinct()
.build();
+ if (!isDeterministic(projected)) {
+ // Only values and row-producing operations needed by the parameter
+ // domain are repeated. Unused volatile projections need not prevent
Review Comment:
Yes, I meant "non-deterministic". I've corrected the wording.
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