added in rle decoder for boolean

Co-authored-by: Minhan Cao <[email protected]>

velox/dwio/parquet/reader/PageReader.cpp

@@ -698,6 +698,16 @@ void PageReader::makeDecoder() {
         break;
       }
       FMT_FALLTHROUGH;
+    case Encoding::RLE:
+      switch (parquetType) {
+        case thrift::Type::BOOLEAN:
+          rleBooleanDecoder_ = std::make_unique<RleBooleanDecoder>(
+              pageData_, pageData_ + encodedDataSize_, encodedDataSize_);
+          break;
+        default:
+          VELOX_UNSUPPORTED("RLE decoder only supports boolean");
+      }
+      break;
     default:
       VELOX_UNSUPPORTED("Encoding not supported yet: {}", encoding_);
   }
@@ -740,6 +750,8 @@ void PageReader::skip(int64_t numRows) {
     deltaBpDecoder_->skip(toSkip);
   } else if (deltaByteArrDecoder_) {
     deltaByteArrDecoder_->skip(toSkip);
+  } else if (rleBooleanDecoder_) {
+    rleBooleanDecoder_->skip(toSkip);
   } else {
     VELOX_FAIL("No decoder to skip");
   }

velox/dwio/parquet/reader/PageReader.h

@@ -25,6 +25,7 @@
 #include "velox/dwio/parquet/reader/DeltaBpDecoder.h"
 #include "velox/dwio/parquet/reader/DeltaByteArrayDecoder.h"
 #include "velox/dwio/parquet/reader/ParquetTypeWithId.h"
+#include "velox/dwio/parquet/reader/RleBooleanDecoder.h"
 #include "velox/dwio/parquet/reader/RleBpDataDecoder.h"
 #include "velox/dwio/parquet/reader/StringDecoder.h"
 #include "velox/dwio/parquet/writer/arrow/util/RleEncodingInternal.h"
@@ -338,9 +339,21 @@ class PageReader {
     VELOX_CHECK(!isDictionary(), "BOOLEAN types are never dictionary-encoded");
     if (nulls) {
       nullsFromFastPath = false;
-      booleanDecoder_->readWithVisitor<true>(nulls, visitor);
+      switch (encoding_) {
+        case thrift::Encoding::RLE:
+          rleBooleanDecoder_->readWithVisitor<true>(nulls, visitor);
+          break;
+        default:
+          booleanDecoder_->readWithVisitor<true>(nulls, visitor);
+      }
     } else {
-      booleanDecoder_->readWithVisitor<false>(nulls, visitor);
+      switch (encoding_) {
+        case thrift::Encoding::RLE:
+          rleBooleanDecoder_->readWithVisitor<false>(nulls, visitor);
+          break;
+        default:
+          booleanDecoder_->readWithVisitor<false>(nulls, visitor);
+      }
     }
   }
 
@@ -501,6 +514,7 @@ class PageReader {
   std::unique_ptr<BooleanDecoder> booleanDecoder_;
   std::unique_ptr<DeltaBpDecoder> deltaBpDecoder_;
   std::unique_ptr<DeltaByteArrayDecoder> deltaByteArrDecoder_;
+  std::unique_ptr<RleBooleanDecoder> rleBooleanDecoder_;
   // Add decoders for other encodings here.
 };
 

velox/dwio/parquet/reader/RleBooleanDecoder.h

@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * Licensed 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.
+ */
+
+#pragma once
+
+#include "velox/dwio/parquet/reader/RleBpDecoder.h"
+
+namespace facebook::velox::parquet {
+
+class RleBooleanDecoder : public RleBpDecoder {
+ public:
+  using super = RleBpDecoder;
+  RleBooleanDecoder(const char* start, const char* end, int32_t& len)
+      : super::RleBpDecoder{start + 4, end, 1} {
+    if (len < 4) {
+      VELOX_FAIL(
+          "Received invalid length : " + std::to_string(len) +
+          " (corrupt data page?)");
+    }
+    // num_bytes will be the first 4 bytes that tell us the length of encoded
+    // data
+    num_bytes =
+        ::arrow::bit_util::FromLittleEndian(::arrow::util::SafeLoadAs<uint32_t>(
+            reinterpret_cast<const uint8_t*>(start)));
+    if (num_bytes < 0 || num_bytes > static_cast<uint32_t>(len - 4)) {
+      VELOX_FAIL(
+          "Received invalid number of bytes : " + std::to_string(num_bytes) +
+          " (corrupt data page?)");
+    }
+  }
+
+  void skip(uint64_t numValues) {
+    skip<false>(numValues, 0, nullptr);
+  }
+
+  template <bool hasNulls>
+  inline void skip(int32_t numValues, int32_t current, const uint64_t* nulls) {
+    if (hasNulls) {
+      numValues = bits::countNonNulls(nulls, current, current + numValues);
+    }
+
+    super::skip(numValues);
+  }
+
+  template <bool hasNulls, typename Visitor>
+  void readWithVisitor(const uint64_t* nulls, Visitor visitor) {
+    int32_t current = visitor.start();
+
+    skip<hasNulls>(current, 0, nulls);
+    int32_t toSkip;
+    bool atEnd = false;
+    const bool allowNulls = hasNulls && visitor.allowNulls();
+    std::vector<uint64_t> outputBuffer(20);
+    bool* b = nullptr;
+    for (;;) {
+      if (hasNulls && allowNulls && bits::isBitNull(nulls, current)) {
+        toSkip = visitor.processNull(atEnd);
+      } else {
+        if (hasNulls && !allowNulls) {
+          toSkip = visitor.checkAndSkipNulls(nulls, current, atEnd);
+          if (!Visitor::dense) {
+            skip<false>(toSkip, current, nullptr);
+          }
+          if (atEnd) {
+            return;
+          }
+        }
+
+        // We are at a non-null value on a row to visit.
+        std::vector<uint8_t> outputValues_;
+        outputValues_.resize(visitor.numRows(), 0);
+        uint8_t* output = outputValues_.data();
+        if (!remainingValues_) {
+          readHeader();
+        }
+        if (repeating_) {
+          toSkip = visitor.process(value_, atEnd);
+        } else {
+          value_ = readBitField();
+          toSkip = visitor.process(value_, atEnd);
+        }
+        --remainingValues_;
+      }
+      ++current;
+      if (toSkip) {
+        skip<hasNulls>(toSkip, current, nulls);
+        current += toSkip;
+      }
+      if (atEnd) {
+        return;
+      }
+    }
+  }
+
+ private:
+  int64_t readBitField() {
+    auto value =
+        dwio::common::safeLoadBits(
+            super::bufferStart_, bitOffset_, bitWidth_, lastSafeWord_) &
+        bitMask_;
+    bitOffset_ += bitWidth_;
+    super::bufferStart_ += bitOffset_ >> 3;
+    bitOffset_ &= 7;
+    return value;
+  }
+
+  const char* bufferStart_;
+  uint32_t num_bytes = 0;
+};
+
+} // namespace facebook::velox::parquet

velox/dwio/parquet/tests/reader/E2EFilterTest.cpp

@@ -744,6 +744,20 @@ TEST_F(E2EFilterTest, configurableWriteSchema) {
   test(type, newType);
 }
 
+TEST_F(E2EFilterTest, booleanRle) {
+  options_.enableDictionary = false;
+  options_.encoding = facebook::velox::parquet::arrow::Encoding::RLE;
+  options_.parquetDataPageVersion = "V2";
+
+  testWithTypes(
+      "boolean_val:boolean,"
+      "boolean_null:boolean",
+      [&]() { makeAllNulls("boolean_null"); },
+      false,
+      {"boolean_val"},
+      20);
+}
+
 // Define main so that gflags get processed.
 int main(int argc, char** argv) {
   testing::InitGoogleTest(&argc, argv);

velox/dwio/parquet/tests/reader/ParquetTableScanTest.cpp

@@ -1163,6 +1163,150 @@ TEST_F(ParquetTableScanTest, deltaByteArray) {
   assertSelect({"a"}, "SELECT a from expected");
 }
 
+TEST_F(ParquetTableScanTest, rleBoolean) {
+  loadData(
+      getExampleFilePath("rleboolean.parquet"),
+      ROW({"c0", "c1", "c2", "c3", "c4", "c5"},
+          {BOOLEAN(), BOOLEAN(), BOOLEAN(), BOOLEAN(), BOOLEAN(), BOOLEAN()}),
+      makeRowVector(
+          {"c0", "c1", "c2", "c3", "c4", "c5"},
+          {
+              makeNullableFlatVector<bool>(
+                  {true,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt}),
+              makeNullableFlatVector<bool>(
+                  {false,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt}),
+              makeNullableFlatVector<bool>(
+                  {std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt,
+                   std::nullopt}),
+              makeFlatVector<bool>(std::vector<bool>{
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true,
+                  true}),
+              makeFlatVector<bool>(std::vector<bool>{
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false,
+                  false}),
+              makeNullableFlatVector<bool>(
+                  {false,
+                   false,
+                   false,
+                   std::nullopt,
+                   std::nullopt,
+                   true,
+                   true,
+                   true,
+                   true,
+                   true,
+                   false,
+                   true,
+                   std::nullopt,
+                   false,
+                   true,
+                   std::nullopt,
+                   std::nullopt,
+                   false}),
+          }));
+  std::shared_ptr<connector::ColumnHandle> c0 = makeColumnHandle(
+      "c0", BOOLEAN(), BOOLEAN(), {}, HiveColumnHandle::ColumnType::kRegular);
+  std::shared_ptr<connector::ColumnHandle> c1 = makeColumnHandle(
+      "c1", BOOLEAN(), BOOLEAN(), {}, HiveColumnHandle::ColumnType::kRegular);
+  std::shared_ptr<connector::ColumnHandle> c2 = makeColumnHandle(
+      "c2", BOOLEAN(), BOOLEAN(), {}, HiveColumnHandle::ColumnType::kRegular);
+  std::shared_ptr<connector::ColumnHandle> c3 = makeColumnHandle(
+      "c2", BOOLEAN(), BOOLEAN(), {}, HiveColumnHandle::ColumnType::kRegular);
+  std::shared_ptr<connector::ColumnHandle> c4 = makeColumnHandle(
+      "c3", BOOLEAN(), BOOLEAN(), {}, HiveColumnHandle::ColumnType::kRegular);
+  std::shared_ptr<connector::ColumnHandle> c5 = makeColumnHandle(
+      "c4", BOOLEAN(), BOOLEAN(), {}, HiveColumnHandle::ColumnType::kRegular);
+
+  assertSelect({"c0"}, "SELECT c0 FROM tmp");
+  assertSelect({"c1"}, "SELECT c1 FROM tmp");
+  assertSelect({"c2"}, "SELECT c2 FROM tmp");
+  assertSelect({"c3"}, "SELECT c3 FROM tmp");
+  assertSelect({"c4"}, "SELECT c4 FROM tmp");
+  assertSelect({"c5"}, "SELECT c5 FROM tmp");
+}
+
 int main(int argc, char** argv) {
   testing::InitGoogleTest(&argc, argv);
   folly::Init init{&argc, &argv, false};

velox/dwio/parquet/writer/Writer.cpp

@@ -147,6 +147,10 @@ std::shared_ptr<WriterProperties> getArrowParquetWriterOptions(
       static_cast<int64_t>(flushPolicy->rowsInRowGroup()));
   properties = properties->codec_options(options.codecOptions);
   properties = properties->enable_store_decimal_as_integer();
+  if (options.parquetDataPageVersion == "V2") {
+    properties = properties->data_page_version(
+        facebook::velox::parquet::arrow::ParquetDataPageVersion::V2);
+  }
   return properties->build();
 }
 

velox/dwio/parquet/writer/Writer.h

@@ -108,7 +108,7 @@ struct WriterOptions : public dwio::common::WriterOptions {
   /// Timestamp time zone for Parquet write through Arrow bridge.
   std::optional<std::string> parquetWriteTimestampTimeZone;
   bool writeInt96AsTimestamp = false;
-
+  std::optional<std::string> parquetDataPageVersion = std::nullopt;
   // Parsing session and hive configs.
 
   // This isn't a typo; session and hive connector config names are different