rocksdb/utilities/column_aware_encoding_util.h
Zhongyi Xie c3ebc75843 Move prefix_extractor to MutableCFOptions
Summary:
Currently it is not possible to change bloom filter config without restart the db, which is causing a lot of operational complexity for users.
This PR aims to make it possible to dynamically change bloom filter config.
Closes https://github.com/facebook/rocksdb/pull/3601

Differential Revision: D7253114

Pulled By: miasantreble

fbshipit-source-id: f22595437d3e0b86c95918c484502de2ceca120c
2018-05-21 14:43:11 -07:00

82 lines
2.8 KiB
C++

// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#pragma once
#ifndef ROCKSDB_LITE
#include <string>
#include <vector>
#include "db/dbformat.h"
#include "include/rocksdb/env.h"
#include "include/rocksdb/listener.h"
#include "include/rocksdb/options.h"
#include "include/rocksdb/status.h"
#include "options/cf_options.h"
#include "table/block_based_table_reader.h"
namespace rocksdb {
struct ColDeclaration;
struct KVPairColDeclarations;
class ColumnAwareEncodingReader {
public:
explicit ColumnAwareEncodingReader(const std::string& file_name);
void GetKVPairsFromDataBlocks(std::vector<KVPairBlock>* kv_pair_blocks);
void EncodeBlocksToRowFormat(WritableFile* out_file,
CompressionType compression_type,
const std::vector<KVPairBlock>& kv_pair_blocks,
std::vector<std::string>* blocks);
void DecodeBlocksFromRowFormat(WritableFile* out_file,
const std::vector<std::string>* blocks);
void DumpDataColumns(const std::string& filename,
const KVPairColDeclarations& kvp_col_declarations,
const std::vector<KVPairBlock>& kv_pair_blocks);
Status EncodeBlocks(const KVPairColDeclarations& kvp_col_declarations,
WritableFile* out_file, CompressionType compression_type,
const std::vector<KVPairBlock>& kv_pair_blocks,
std::vector<std::string>* blocks, bool print_column_stat);
void DecodeBlocks(const KVPairColDeclarations& kvp_col_declarations,
WritableFile* out_file,
const std::vector<std::string>* blocks);
static void GetColDeclarationsPrimary(
std::vector<ColDeclaration>** key_col_declarations,
std::vector<ColDeclaration>** value_col_declarations,
ColDeclaration** value_checksum_declaration);
static void GetColDeclarationsSecondary(
std::vector<ColDeclaration>** key_col_declarations,
std::vector<ColDeclaration>** value_col_declarations,
ColDeclaration** value_checksum_declaration);
private:
// Init the TableReader for the sst file
void InitTableReader(const std::string& file_path);
std::string file_name_;
EnvOptions soptions_;
Options options_;
Status init_result_;
std::unique_ptr<BlockBasedTable> table_reader_;
std::unique_ptr<RandomAccessFileReader> file_;
const ImmutableCFOptions ioptions_;
const MutableCFOptions moptions_;
InternalKeyComparator internal_comparator_;
std::unique_ptr<TableProperties> table_properties_;
};
} // namespace rocksdb
#endif // ROCKSDB_LITE