orc_types.hpp

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/*
 * Copyright (c) 2019-2024, NVIDIA CORPORATION.
 *
 * 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
 *
 * https://apache.ac.cn/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 <cudf/utilities/export.hpp>

#include <cstdint>

namespace CUDF_EXPORT cudf {
namespace io::orc {
enum CompressionKind : uint8_t {
 NONE = 0,
 ZLIB = 1,
 SNAPPY = 2,
 LZO = 3,
 LZ4 = 4,
 ZSTD = 5,
};

enum TypeKind : int8_t {
 INVALID_TYPE_KIND = -1,
 BOOLEAN = 0,
 BYTE = 1,
 SHORT = 2,
 INT = 3,
 LONG = 4,
 FLOAT = 5,
 DOUBLE = 6,
 STRING = 7,
 BINARY = 8,
 TIMESTAMP = 9,
 LIST = 10,
 MAP = 11,
 STRUCT = 12,
 UNION = 13,
 DECIMAL = 14,
 DATE = 15,
 VARCHAR = 16,
 CHAR = 17,
};

enum StreamKind : int8_t {
 INVALID_STREAM_KIND = -1,
 PRESENT = 0, // boolean stream of whether the next value is non-null
 DATA = 1, // the primary data stream
 LENGTH = 2, // the length of each value for variable length data
 DICTIONARY_DATA = 3, // the dictionary blob
 DICTIONARY_COUNT = 4, // deprecated prior to Hive 0.11
 SECONDARY = 5, // a secondary data stream
 ROW_INDEX = 6, // the index for seeking to particular row groups
 BLOOM_FILTER = 7, // original bloom filters used before ORC-101
 BLOOM_FILTER_UTF8 = 8, // bloom filters that consistently use utf8
};

enum ColumnEncodingKind : int8_t {
 DIRECT = 0, // the encoding is mapped directly to the stream using RLE v1
 DICTIONARY = 1, // the encoding uses a dictionary of unique values using RLE v1
 DIRECT_V2 = 2, // the encoding is direct using RLE v2
 DICTIONARY_V2 = 3, // the encoding is dictionary-based using RLE v2
};


enum ProtofType : uint8_t {
 VARINT = 0,
 FIXED64 = 1,
 FIXEDLEN = 2,
 START_GROUP = 3, // deprecated
 END_GROUP = 4, // deprecated
 FIXED32 = 5,
 INVALID_6 = 6,
 INVALID_7 = 7,
};
 // end of group
} // namespace io::orc
} // namespace CUDF_EXPORT cudf