Restore previous style.

Author: viirya

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/DataSourceV2Strategy.scala

@@ -179,22 +179,16 @@ class DataSourceV2Strategy(session: SparkSession) extends Strategy with Predicat
 
     case OverwriteByExpression(r: DataSourceV2Relation, deleteExpr, query, writeOptions, _) =>
       // fail if any filter cannot be converted. correctness depends on removing all matching data.
-      val filters = splitConjunctivePredicates(deleteExpr)
-      def transferFilters =
-        (filters: Seq[Expression]) => {
-          filters.map { filter =>
-            DataSourceStrategy.translateFilter(deleteExpr, supportNestedPredicatePushdown = true)
-              .getOrElse(throw new AnalysisException(
-                s"Cannot translate expression to source filter: $filter"))
-          }.toArray
-        }
+      val filters = splitConjunctivePredicates(deleteExpr).map {
+        filter => DataSourceStrategy.translateFilter(deleteExpr,
+          supportNestedPredicatePushdown = true).getOrElse(
+            throw new AnalysisException(s"Cannot translate expression to source filter: $filter"))
+      }.toArray
       r.table.asWritable match {
         case v1 if v1.supports(TableCapability.V1_BATCH_WRITE) =>
-          OverwriteByExpressionExecV1(
-            v1, transferFilters(filters), writeOptions.asOptions, query) :: Nil
+          OverwriteByExpressionExecV1(v1, filters, writeOptions.asOptions, query) :: Nil
         case v2 =>
-          OverwriteByExpressionExec(
-            v2, transferFilters(filters), writeOptions.asOptions, planLater(query)) :: Nil
+          OverwriteByExpressionExec(v2, filters, writeOptions.asOptions, planLater(query)) :: Nil
       }
 
     case OverwritePartitionsDynamic(r: DataSourceV2Relation, query, writeOptions, _) =>