xuzifu666 commented on code in PR #4628:
URL: https://github.com/apache/calcite/pull/4628#discussion_r2544725430
##########
core/src/test/java/org/apache/calcite/rex/RexProgramTest.java:
##########
@@ -4039,6 +4039,13 @@ private void checkSarg(String message, Sarg sarg,
checkSimplify(or(isNull(ref), like(ref, literal("%"), literal("#"))),
"true");
checkSimplifyUnchanged(like(ref, literal("%A")));
+
+ RexCall simplifyLike = (RexCall) simplify.simplify(like(ref,
literalVarchar("%%A")));
+
assertThat(simplifyLike.getOperands().get(1).getType().getSqlTypeName().name(),
is("VARCHAR"));
Review Comment:
I added test case hereļ¼and before this modification, it would be determined
as a ```CHAR``` type here. @mihaibudiu
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