[SPARK-17310][SQL] Add an option to disable record-level filter in Parquet-side

sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala

@@ -327,6 +327,13 @@ object SQLConf {
     .booleanConf
     .createWithDefault(false)
 
+  val PARQUET_RECORD_FILTER_ENABLED = buildConf("spark.sql.parquet.recordLevelFilter.enabled")
+    .doc("If true, enables Parquet's native record-level filtering using the pushed down " +
+      "filters. This configuration only has an effect when 'spark.sql.parquet.filterPushdown' " +
+      "is enabled.")
+    .booleanConf
+    .createWithDefault(true)
+
   val PARQUET_OUTPUT_COMMITTER_CLASS = buildConf("spark.sql.parquet.output.committer.class")
     .doc("The output committer class used by Parquet. The specified class needs to be a " +
       "subclass of org.apache.hadoop.mapreduce.OutputCommitter. Typically, it's also a subclass " +
@@ -1173,6 +1180,8 @@ class SQLConf extends Serializable with Logging {
 
   def writeLegacyParquetFormat: Boolean = getConf(PARQUET_WRITE_LEGACY_FORMAT)
 
+  def parquetRecordFilterEnabled: Boolean = getConf(PARQUET_RECORD_FILTER_ENABLED)
+
   def inMemoryPartitionPruning: Boolean = getConf(IN_MEMORY_PARTITION_PRUNING)
 
   def columnNameOfCorruptRecord: String = getConf(COLUMN_NAME_OF_CORRUPT_RECORD)

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFileFormat.scala

@@ -335,6 +335,8 @@ class ParquetFileFormat
     val enableVectorizedReader: Boolean =
       sparkSession.sessionState.conf.parquetVectorizedReaderEnabled &&
       resultSchema.forall(_.dataType.isInstanceOf[AtomicType])
+    val enableRecordFilter: Boolean =
+      sparkSession.sessionState.conf.parquetRecordFilterEnabled
     // Whole stage codegen (PhysicalRDD) is able to deal with batches directly
     val returningBatch = supportBatch(sparkSession, resultSchema)
 
@@ -374,13 +376,11 @@ class ParquetFileFormat
       } else {
         logDebug(s"Falling back to parquet-mr")
         // ParquetRecordReader returns UnsafeRow
-        val reader = pushed match {
-          case Some(filter) =>
-            new ParquetRecordReader[UnsafeRow](
-              new ParquetReadSupport,
-              FilterCompat.get(filter, null))
-          case _ =>
-            new ParquetRecordReader[UnsafeRow](new ParquetReadSupport)
+        val reader = if (pushed.isDefined && enableRecordFilter) {
+          val parquetFilter = FilterCompat.get(pushed.get, null)
+          new ParquetRecordReader[UnsafeRow](new ParquetReadSupport, parquetFilter)
+        } else {
+          new ParquetRecordReader[UnsafeRow](new ParquetReadSupport)
         }
         reader.initialize(split, hadoopAttemptContext)
         reader

sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFilterSuite.scala

@@ -45,8 +45,29 @@ import org.apache.spark.util.{AccumulatorContext, AccumulatorV2}
  *
  * 2. `Tuple1(Option(x))` is used together with `AnyVal` types like `Int` to ensure the inferred
  *    data type is nullable.
+ *
+ * NOTE:
+ *
+ * This file intendedly enables record-level filtering explicitly. If new test cases are
+ * dependent on this configuration, don't forget you better explicitly set this configuration
+ * within the test.
  */
 class ParquetFilterSuite extends QueryTest with ParquetTest with SharedSQLContext {
+
+  override def beforeEach(): Unit = {
+    super.beforeEach()
+    // Note that there are many tests here that require record-level filtering set to be true.
+    spark.conf.set(SQLConf.PARQUET_RECORD_FILTER_ENABLED.key, "true")
+  }
+
+  override def afterEach(): Unit = {
+    try {
+      spark.conf.unset(SQLConf.PARQUET_RECORD_FILTER_ENABLED.key)
+    } finally {
+      super.afterEach()
+    }
+  }
+
   private def checkFilterPredicate(
       df: DataFrame,
       predicate: Predicate,
@@ -369,7 +390,7 @@ class ParquetFilterSuite extends QueryTest with ParquetTest with SharedSQLContex
 
   test("Filter applied on merged Parquet schema with new column should work") {
     import testImplicits._
-    Seq("true", "false").map { vectorized =>
+    Seq("true", "false").foreach { vectorized =>
       withSQLConf(SQLConf.PARQUET_FILTER_PUSHDOWN_ENABLED.key -> "true",
         SQLConf.PARQUET_SCHEMA_MERGING_ENABLED.key -> "true",
         SQLConf.PARQUET_VECTORIZED_READER_ENABLED.key -> vectorized) {
@@ -491,7 +512,7 @@ class ParquetFilterSuite extends QueryTest with ParquetTest with SharedSQLContex
     }
   }
 
-  test("Fiters should be pushed down for vectorized Parquet reader at row group level") {
+  test("Filters should be pushed down for vectorized Parquet reader at row group level") {
     import testImplicits._
 
     withSQLConf(SQLConf.PARQUET_VECTORIZED_READER_ENABLED.key -> "true",
@@ -555,6 +576,32 @@ class ParquetFilterSuite extends QueryTest with ParquetTest with SharedSQLContex
       }
     }
   }
+
+  test("Filters should be pushed down for Parquet readers at row group level") {
+    import testImplicits._
+
+    withSQLConf(
+      // Makes sure disabling 'spark.sql.parquet.recordFilter' still enables
+      // row group level filtering.
+      SQLConf.PARQUET_RECORD_FILTER_ENABLED.key -> "false",
+      SQLConf.PARQUET_FILTER_PUSHDOWN_ENABLED.key -> "true",
+      SQLConf.PARQUET_VECTORIZED_READER_ENABLED.key -> "false") {
+      withTempPath { path =>
+        val data = (1 to 1024)
+        data.toDF("a").coalesce(1)
+          .write.option("parquet.block.size", 512)
+          .parquet(path.getAbsolutePath)
+        val df = spark.read.parquet(path.getAbsolutePath).filter("a == 500")
+        // Here, we strip the Spark side filter and check the actual results from Parquet.
+        val actual = stripSparkFilter(df).collect().length
+        // Since those are filtered at row group level, the result count should be less
+        // than the total length but should not be a single record.
+        // Note that, if record level filtering is enabled, it should be a single record.
+        // If no filter is pushed down to Parquet, it should be the total length of data.
+        assert(actual > 1 && actual < data.length)
+      }
+    }
+  }
 }
 
 class NumRowGroupsAcc extends AccumulatorV2[Integer, Integer] {