diff --git a/core/src/main/java/org/apache/calcite/rex/RexSimplify.java b/core/src/main/java/org/apache/calcite/rex/RexSimplify.java
index 16bba487b60e..2bfcafbb77ab 100644
--- a/core/src/main/java/org/apache/calcite/rex/RexSimplify.java
+++ b/core/src/main/java/org/apache/calcite/rex/RexSimplify.java
@@ -1676,7 +1676,9 @@ private <C extends Comparable<C>> RexNode simplifyAnd2ForUnknownAsFalse(
             final RexLiteral literal = comparison.literal;
             final RexLiteral prevLiteral =
                 equalityConstantTerms.put(comparison.ref, literal);
-            if (prevLiteral != null && !literal.equals(prevLiteral)) {
+            // see https://olapio.atlassian.net/browse/AL-9703
+            if (prevLiteral != null && !(literal.getTypeName() == prevLiteral.getTypeName()
+                && literal.getValue().equals(prevLiteral.getValue()))) {
               return rexBuilder.makeLiteral(false);
             }
           } else if (RexUtil.isReferenceOrAccess(left, true)
diff --git a/gradle.properties b/gradle.properties
index 309593ed7add..5dbcf38d8fab 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -27,7 +27,7 @@ systemProp.org.gradle.internal.publish.checksums.insecure=true
 # This is version for Calcite itself
 # Note: it should not include "-SNAPSHOT" as it is automatically added by build.gradle.kts
 # Release version can be generated by using -Prelease or -Prc=<int> arguments
-calcite.version=1.30.0-kylin-4.x-r08
+calcite.version=1.30.0-kylin-4.x-r09
 # This is a version to be used from Maven repository. It can be overridden by localAvatica below
 calcite.avatica.version=1.20.0