diff --git a/backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala b/backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala
index 4212ab37caa38..64f714f575672 100644
--- a/backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala
+++ b/backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala
@@ -200,7 +200,6 @@ object CHExpressionUtil {
     ARRAY_REMOVE -> DefaultValidator(),
     ARRAYS_ZIP -> DefaultValidator(),
     DATE_FROM_UNIX_DATE -> DefaultValidator(),
-    UNIX_DATE -> DefaultValidator(),
     MONOTONICALLY_INCREASING_ID -> DefaultValidator(),
     SPARK_PARTITION_ID -> DefaultValidator(),
     URL_DECODE -> DefaultValidator(),
diff --git a/cpp-ch/local-engine/Parser/scalar_function_parser/CommonScalarFunctionParser.cpp b/cpp-ch/local-engine/Parser/scalar_function_parser/CommonScalarFunctionParser.cpp
index 7af65d1070137..459e7c7aa4f30 100644
--- a/cpp-ch/local-engine/Parser/scalar_function_parser/CommonScalarFunctionParser.cpp
+++ b/cpp-ch/local-engine/Parser/scalar_function_parser/CommonScalarFunctionParser.cpp
@@ -155,6 +155,7 @@ REGISTER_COMMON_SCALAR_FUNCTION_PARSER(FloorDatetime, floor_datetime, dateTrunc)
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(Floor, floor, sparkFloor);
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(MothsBetween, months_between, sparkMonthsBetween);
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(UnixSeconds, unix_seconds, toUnixTimestamp);
+REGISTER_COMMON_SCALAR_FUNCTION_PARSER(UnixDate, unix_date, toInt32);
 
 // array functions
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(Array, array, array);
diff --git a/gluten-ut/spark33/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala b/gluten-ut/spark33/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
index a914f28700dcf..b1fbae41eea9f 100644
--- a/gluten-ut/spark33/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
+++ b/gluten-ut/spark33/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
@@ -733,7 +733,7 @@ class ClickHouseTestSettings extends BackendTestSettings {
     .exclude("to_timestamp exception mode")
     .exclude("SPARK-31896: Handle am-pm timestamp parsing when hour is missing")
     .exclude("DATE_FROM_UNIX_DATE")
-    .exclude("UNIX_DATE")
+//    .exclude("UNIX_DATE")
     .exclude("UNIX_SECONDS")
     .exclude("UNIX_MILLIS")
     .exclude("UNIX_MICROS")