danny0405 commented on a change in pull request #1492: [CALCITE-3390] Add ITEM
expression to SqlKind and include it in the p…
URL: https://github.com/apache/calcite/pull/1492#discussion_r333797833
##########
File path: core/src/test/java/org/apache/calcite/test/RexProgramTest.java
##########
@@ -624,6 +624,13 @@ private RexProgramBuilder createProg(int variant) {
case_(isNotNull(i0), i0, i1), c01),
is(true));
+ final RelDataType intArray = typeFactory.createArrayType(intType, -1);
+ RexInputRef inputRef = rexBuilder.makeInputRef(intArray, 0);
+ RexNode rexNode = rexBuilder.makeCall(
+ SqlStdOperatorTable.ITEM,
+ inputRef,
+ rexBuilder.makeLiteral(0, intType, false));
Review comment:
We may also need to add some tests for the `IS NULL/IS NOT NULL`
simplification.
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