vlsi commented on a change in pull request #1053: [CALCITE-2852]
Simplification: traverse calculations and unknown UDFs
URL: https://github.com/apache/calcite/pull/1053#discussion_r258166586
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File path: core/src/main/java/org/apache/calcite/rex/RexSimplify.java
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@@ -284,8 +284,24 @@ RexNode simplify(RexNode e, RexUnknownAs unknownAs) {
case NOT_EQUALS:
return simplifyComparison((RexCall) e, unknownAs);
default:
+ if (e.getClass() == RexCall.class) {
+ return simplifyGenericNode((RexCall) e);
Review comment:
CALCITE-2851 is a nice ticket.
I wonder if we could add an automatic check there: for instance, fail the
test when number of simplify actions exceeds 3*N (or whatever).
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