xiedeyantu commented on code in PR #4260:
URL: https://github.com/apache/calcite/pull/4260#discussion_r2015619037
##########
core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java:
##########
@@ -4741,6 +4743,47 @@ private static class IsNullImplementor extends
AbstractRexCallImplementor {
}
}
+ /** Implementor for the {@code IS NOT DISTINCT FROM} SQL operator. */
+ private static class IsNotDistinctFromImplementor extends
AbstractRexCallImplementor {
+ IsNotDistinctFromImplementor() {
+ super("is_not_distinct_from", NullPolicy.NONE, false);
+ }
+
+ @Override public RexToLixTranslator.Result implement(final
RexToLixTranslator translator,
+ final RexCall call, final List<RexToLixTranslator.Result> arguments) {
+ final RexToLixTranslator.Result left = arguments.get(0);
+ final RexToLixTranslator.Result right = arguments.get(1);
+
+ final Expression valueExpression =
+ Expressions.condition(left.isNullVariable,
+ Expressions.condition(right.isNullVariable, BOXED_TRUE_EXPR,
BOXED_FALSE_EXPR),
+ Expressions.condition(right.isNullVariable, BOXED_FALSE_EXPR,
+ Expressions.equal(left.valueVariable, right.valueVariable)));
+
+ BlockBuilder builder = translator.getBlockBuilder();
+ final ParameterExpression valueVariable =
+ Expressions.parameter(valueExpression.getType(),
+ builder.newName(variableName + "_value"));
+ final Expression isNullExpression = FALSE_EXPR;
+ final ParameterExpression isNullVariable =
Review Comment:
Fixed
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