feat: support Spark luhn_check expression

native/core/src/execution/jni_api.rs

@@ -56,6 +56,7 @@ use datafusion_spark::function::math::hex::SparkHex;
 use datafusion_spark::function::math::width_bucket::SparkWidthBucket;
 use datafusion_spark::function::string::char::CharFunc;
 use datafusion_spark::function::string::concat::SparkConcat;
+use datafusion_spark::function::string::luhn_check::SparkLuhnCheck;
 use datafusion_spark::function::string::space::SparkSpace;
 use futures::poll;
 use futures::stream::StreamExt;
@@ -402,6 +403,7 @@ fn register_datafusion_spark_function(session_ctx: &SessionContext) {
     session_ctx.register_udf(ScalarUDF::new_from_impl(SparkWidthBucket::default()));
     session_ctx.register_udf(ScalarUDF::new_from_impl(MapFromEntries::default()));
     session_ctx.register_udf(ScalarUDF::new_from_impl(SparkCrc32::default()));
+    session_ctx.register_udf(ScalarUDF::new_from_impl(SparkLuhnCheck::default()));
     session_ctx.register_udf(ScalarUDF::new_from_impl(SparkSpace::default()));
     session_ctx.register_udf(ScalarUDF::new_from_impl(SparkBitCount::default()));
 }

spark/src/main/scala/org/apache/comet/serde/statics.scala

@@ -19,7 +19,7 @@
 
 package org.apache.comet.serde
 
-import org.apache.spark.sql.catalyst.expressions.Attribute
+import org.apache.spark.sql.catalyst.expressions.{Attribute, ExpressionImplUtils}
 import org.apache.spark.sql.catalyst.expressions.objects.StaticInvoke
 import org.apache.spark.sql.catalyst.util.CharVarcharCodegenUtils
 
@@ -34,7 +34,8 @@ object CometStaticInvoke extends CometExpressionSerde[StaticInvoke] {
       : Map[(String, Class[_]), CometExpressionSerde[StaticInvoke]] =
     Map(
       ("readSidePadding", classOf[CharVarcharCodegenUtils]) -> CometScalarFunction(
-        "read_side_padding"))
+        "read_side_padding"),
+      ("isLuhnNumber", classOf[ExpressionImplUtils]) -> CometScalarFunction("luhn_check"))
 
   override def convert(
       expr: StaticInvoke,

spark/src/test/resources/sql-tests/expressions/string/luhn_check.sql

@@ -0,0 +1,33 @@
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--   http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing,
+-- software distributed under the License is distributed on an
+-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+-- KIND, either express or implied.  See the License for the
+-- specific language governing permissions and limitations
+-- under the License.
+
+-- MinSparkVersion: 3.5
+-- ConfigMatrix: parquet.enable.dictionary=false,true
+
+statement
+CREATE TABLE test_luhn(s string) USING parquet
+
+statement
+INSERT INTO test_luhn VALUES ('79927398710'), ('79927398713'), ('1234567812345670'), ('0'), (''), ('abc'), (NULL)
+
+-- column input
+query
+SELECT luhn_check(s) FROM test_luhn
+
+-- literal arguments
+query
+SELECT luhn_check('79927398713'), luhn_check('79927398710'), luhn_check(''), luhn_check(NULL)