[VL] Enable div function

backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala

@@ -207,6 +207,7 @@ object CHExpressionUtil {
     MAKE_DATE -> DefaultValidator(),
     ARRAY_APPEND -> DefaultValidator(),
     JSON_OBJECT_KEYS -> DefaultValidator(),
-    LUHN_CHECK -> DefaultValidator()
+    LUHN_CHECK -> DefaultValidator(),
+    DIV -> DefaultValidator()
   )
 }

backends-velox/src/test/scala/org/apache/gluten/functions/ArithmeticAnsiValidateSuite.scala

@@ -72,4 +72,15 @@ class ArithmeticAnsiValidateSuite extends FunctionsValidateSuite {
     }
   }
 
+  test("div") {
+    runQueryAndCompare("SELECT int_field1 div 2 FROM datatab WHERE int_field1 IS NOT NULL") {
+      checkGlutenOperatorMatch[ProjectExecTransformer]
+    }
+    if (isSparkVersionGE("3.4")) {
+      intercept[SparkException] {
+        sql("SELECT 1 div 0 ").collect()
+      }
+    }
+  }
+
 }

ep/build-velox/src/get_velox.sh

@@ -16,7 +16,7 @@
 
 set -exu
 
-VELOX_REPO=https://github.com/oap-project/velox.git
+VELOX_REPO=https://github.com/zhli1142015/velox.git
 VELOX_BRANCH=2025_09_23
 VELOX_HOME=""
 RUN_SETUP_SCRIPT=ON

gluten-substrait/src/main/scala/org/apache/gluten/expression/ExpressionConverter.scala

@@ -695,6 +695,14 @@ object ExpressionConverter extends SQLConfHelper with Logging {
           a,
           ExpressionNames.CHECKED_DIVIDE
         )
+      case i: IntegralDivide =>
+        BackendsApiManager.getSparkPlanExecApiInstance.genArithmeticTransformer(
+          substraitExprName,
+          replaceWithExpressionTransformer0(i.left, attributeSeq, expressionsMap),
+          replaceWithExpressionTransformer0(i.right, attributeSeq, expressionsMap),
+          i,
+          ExpressionNames.CHECKED_DIV
+        )
       case tryEval: TryEval =>
         // This is a placeholder to handle try_eval(other expressions).
         BackendsApiManager.getSparkPlanExecApiInstance.genTryEvalTransformer(

gluten-substrait/src/main/scala/org/apache/gluten/expression/ExpressionMappings.scala

@@ -37,6 +37,7 @@ object ExpressionMappings {
     Sig[Subtract](SUBTRACT),
     Sig[Multiply](MULTIPLY),
     Sig[Divide](DIVIDE),
+    Sig[IntegralDivide](DIV),
     Sig[UnaryPositive](POSITIVE),
     Sig[UnaryMinus](NEGATIVE),
     Sig[And](AND),

shims/common/src/main/scala/org/apache/gluten/expression/ExpressionNames.scala

@@ -60,6 +60,7 @@ object ExpressionNames {
   final val ADD = "add"
   final val SUBTRACT = "subtract"
   final val MULTIPLY = "multiply"
+  final val DIV = "div"
   final val DIVIDE = "divide"
   final val POSITIVE = "positive"
   final val NEGATIVE = "negative"
@@ -91,6 +92,7 @@ object ExpressionNames {
   final val CHECKED_SUBTRACT = "checked_subtract"
   final val CHECKED_DIVIDE = "checked_divide"
   final val CHECKED_MULTIPLY = "checked_multiply"
+  final val CHECKED_DIV = "checked_div"
 
   // SparkSQL String functions
   final val ASCII = "ascii"

shims/spark34/src/main/scala/org/apache/gluten/sql/shims/spark34/Spark34Shims.scala

@@ -562,6 +562,7 @@ class Spark34Shims extends SparkShims {
       case s: Subtract => s.evalMode == EvalMode.ANSI
       case d: Divide => d.evalMode == EvalMode.ANSI
       case m: Multiply => m.evalMode == EvalMode.ANSI
+      case i: IntegralDivide => i.evalMode == EvalMode.ANSI
       case _ => false
     }
   }

shims/spark35/src/main/scala/org/apache/gluten/sql/shims/spark35/Spark35Shims.scala

@@ -601,6 +601,7 @@ class Spark35Shims extends SparkShims {
       case s: Subtract => s.evalMode == EvalMode.ANSI
       case d: Divide => d.evalMode == EvalMode.ANSI
       case m: Multiply => m.evalMode == EvalMode.ANSI
+      case i: IntegralDivide => i.evalMode == EvalMode.ANSI
       case _ => false
     }
   }

shims/spark40/src/main/scala/org/apache/gluten/sql/shims/spark40/Spark40Shims.scala

@@ -608,6 +608,7 @@ class Spark40Shims extends SparkShims {
       case s: Subtract => s.evalMode == EvalMode.ANSI
       case d: Divide => d.evalMode == EvalMode.ANSI
       case m: Multiply => m.evalMode == EvalMode.ANSI
+      case i: IntegralDivide => i.evalMode == EvalMode.ANSI
       case _ => false
     }
   }