mihaibudiu commented on code in PR #4633:
URL: https://github.com/apache/calcite/pull/4633#discussion_r2629740929
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core/src/main/java/org/apache/calcite/sql2rel/RelDecorrelator.java:
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@@ -574,16 +575,30 @@ protected RexNode removeCorrelationExpr(
}
if (isCorVarDefined && (rel.fetch != null || rel.offset != null)) {
- if (rel.fetch != null
- && rel.offset == null
- && RexLiteral.intValue(rel.fetch) == 1) {
- return decorrelateFetchOneSort(rel, frame);
- }
- // Can not decorrelate if the sort has per-correlate-key attributes like
- // offset or fetch limit, because these attributes scope would change to
- // global after decorrelation. They should take effect within the scope
- // of the correlation key actually.
- return null;
+ if (rel.offset == null
+ && rel.fetch != null
+ && RexLiteral.longValue(rel.fetch) == 0) {
Review Comment:
It won't be much harder to use BigInteger here, so why not build the perfect
solution?
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