add test case

Author: Zouxxyy

backends-velox/src/test/scala/org/apache/gluten/execution/VeloxScanSuite.scala

@@ -197,6 +197,20 @@ class VeloxScanSuite extends VeloxWholeStageTransformerSuite {
     }
   }
 
+  test("remove pushed down filter in filter node") {
+    createTPCHNotNullTables()
+    val query = "select l_partkey from lineitem where l_partkey = 1"
+    runQueryAndCompare(query) {
+      df =>
+        {
+          val executedPlan = getExecutedPlan(df)
+          val filter = executedPlan.collect { case f: FilterExecTransformerBase => f }
+          assert(filter.size == 1)
+          assert(filter.head.cond == null)
+        }
+    }
+  }
+
   test("test binary as string") {
     withTempDir {
       dir =>

gluten-paimon/src-paimon/main/scala/org/apache/gluten/execution/PaimonScanTransformer.scala

@@ -74,8 +74,6 @@ case class PaimonScanTransformer(
       throw new GlutenNotSupportException("Only support PaimonScan.")
   }
 
-  override def filterExprs(): Seq[Expression] = pushdownFilters
-
   override def getPartitionSchema: StructType = scan match {
     case paimonScan: PaimonScan =>
       val partitionKeys = paimonScan.table.partitionKeys()