zabetak commented on code in PR #4525:
URL: https://github.com/apache/calcite/pull/4525#discussion_r2334221286
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core/src/main/java/org/apache/calcite/rex/RexSimplify.java:
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@@ -3128,10 +3130,17 @@ private boolean accept2b(RexNode e, SqlKind kind,
case EQUALS:
b.addRange(Range.singleton(value), literal.getType());
return true;
+ case IS_NOT_DISTINCT_FROM:
+ b.addRange(Range.singleton(value), literal.getType(), FALSE);
+ return true;
case NOT_EQUALS:
b.addRange(Range.lessThan(value), literal.getType());
b.addRange(Range.greaterThan(value), literal.getType());
return true;
+ case IS_DISTINCT_FROM:
+ b.addRange(Range.lessThan(value), literal.getType(), TRUE);
Review Comment:
Even if we find a SQL type that does not support comparisons it is not a
problem of the simplifier so a bit out of scope of the current PR.
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