pfzhan commented on code in PR #3326:
URL: https://github.com/apache/calcite/pull/3326#discussion_r1280066573
##########
core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java:
##########
@@ -3315,6 +3315,13 @@ private void
checkReduceNullableToNotNull(ReduceExpressionsRule<?> rule) {
checkReduceNullableToNotNull(rule);
}
+ @Test void testReduceCastDecimal() {
+ final String sql = "SELECT CAST( ( (2) / SQRT(3.0) ) AS NUMERIC(18, 0) ) *
SQRT(3.0)";
+ sql(sql).withRule(CoreRules.PROJECT_REDUCE_EXPRESSIONS)
+ .withRelBuilderSimplify(true)
+ .check();
+ }
+
Review Comment:
Got it, It's not necessary, I will put this test to the SqlOperatorTest.
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