mirror of
https://github.com/facebook/rocksdb.git
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0bb8ea56be
Summary:
Introduce TableOptions section and support BlockBasedTable in RocksDB
options file. A TableOptions section has the following format:
[TableOptions/<FactoryClassName> "<ColumnFamily Name>"]
which includes information about its TableFactory class and belonging
column family. Below is an example TableOptions section of a
BlockBasedTableOptions that belongs to the default column family:
[TableOptions/BlockBasedTable "default"]
format_version=0
whole_key_filtering=true
block_size_deviation=10
block_size=4096
block_restart_interval=16
filter_policy=nullptr
no_block_cache=false
checksum=kCRC32c
cache_index_and_filter_blocks=false
index_type=kBinarySearch
hash_index_allow_collision=true
flush_block_policy_factory=FlushBlockBySizePolicyFactory
Currently, Cache-type options (i.e., block_cache and block_cache_compressed)
are not supported.
Test Plan: options_test
Reviewers: igor, anthony, IslamAbdelRahman, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D48435
462 lines
21 KiB
C++
462 lines
21 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#pragma once
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#include <string>
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#include <stdexcept>
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#include "rocksdb/options.h"
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#include "rocksdb/status.h"
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#include "rocksdb/table.h"
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#include "util/mutable_cf_options.h"
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#ifndef ROCKSDB_LITE
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namespace rocksdb {
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// Returns true if the input char "c" is considered as a special character
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// that will be escaped when EscapeOptionString() is called.
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//
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// @param c the input char
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// @return true if the input char "c" is considered as a special character.
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// @see EscapeOptionString
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bool isSpecialChar(const char c);
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// If the input char is an escaped char, it will return the its
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// associated raw-char. Otherwise, the function will simply return
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// the original input char.
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char UnescapeChar(const char c);
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// If the input char is a control char, it will return the its
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// associated escaped char. Otherwise, the function will simply return
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// the original input char.
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char EscapeChar(const char c);
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// Converts a raw string to an escaped string. Escaped-characters are
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// defined via the isSpecialChar() function. When a char in the input
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// string "raw_string" is classified as a special characters, then it
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// will be prefixed by '\' in the output.
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//
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// It's inverse function is UnescapeOptionString().
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// @param raw_string the input string
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// @return the '\' escaped string of the input "raw_string"
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// @see isSpecialChar, UnescapeOptionString
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std::string EscapeOptionString(const std::string& raw_string);
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// The inverse function of EscapeOptionString. It converts
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// an '\' escaped string back to a raw string.
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//
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// @param escaped_string the input '\' escaped string
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// @return the raw string of the input "escaped_string"
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std::string UnescapeOptionString(const std::string& escaped_string);
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Status GetMutableOptionsFromStrings(
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const MutableCFOptions& base_options,
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const std::unordered_map<std::string, std::string>& options_map,
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MutableCFOptions* new_options);
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Status GetTableFactoryFromMap(
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const std::string& factory_name,
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const std::unordered_map<std::string, std::string>& opt_map,
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std::shared_ptr<TableFactory>* table_factory);
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Status GetStringFromTableFactory(std::string* opts_str, const TableFactory* tf,
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const std::string& delimiter = "; ");
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enum class OptionType {
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kBoolean,
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kInt,
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kUInt,
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kUInt32T,
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kUInt64T,
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kSizeT,
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kString,
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kDouble,
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kCompactionStyle,
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kSliceTransform,
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kCompressionType,
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kVectorCompressionType,
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kTableFactory,
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kComparator,
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kCompactionFilter,
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kCompactionFilterFactory,
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kMergeOperator,
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kMemTableRepFactory,
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kBlockBasedTableIndexType,
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kFilterPolicy,
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kFlushBlockPolicyFactory,
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kChecksumType,
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kUnknown
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};
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enum class OptionVerificationType {
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kNormal,
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kByName, // The option is pointer typed so we can only verify
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// based on it's name.
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kDeprecated // The option is no longer used in rocksdb. The RocksDB
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// OptionsParser will still accept this option if it
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// happen to exists in some Options file. However, the
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// parser will not include it in serialization and
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// verification processes.
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};
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// A struct for storing constant option information such as option name,
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// option type, and offset.
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struct OptionTypeInfo {
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int offset;
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OptionType type;
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OptionVerificationType verification;
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};
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// A helper function that converts "opt_address" to a std::string
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// based on the specified OptionType.
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bool SerializeSingleOptionHelper(const char* opt_address,
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const OptionType opt_type, std::string* value);
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static std::unordered_map<std::string, OptionTypeInfo> db_options_type_info = {
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/*
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// not yet supported
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AccessHint access_hint_on_compaction_start;
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Env* env;
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InfoLogLevel info_log_level;
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WALRecoveryMode wal_recovery_mode;
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std::shared_ptr<Cache> row_cache;
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std::shared_ptr<DeleteScheduler> delete_scheduler;
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std::shared_ptr<Logger> info_log;
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std::shared_ptr<RateLimiter> rate_limiter;
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std::shared_ptr<Statistics> statistics;
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std::vector<DbPath> db_paths;
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std::vector<std::shared_ptr<EventListener>> listeners;
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*/
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{"advise_random_on_open",
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{offsetof(struct DBOptions, advise_random_on_open), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"allow_mmap_reads",
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{offsetof(struct DBOptions, allow_mmap_reads), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"allow_fallocate",
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{offsetof(struct DBOptions, allow_fallocate), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"allow_mmap_writes",
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{offsetof(struct DBOptions, allow_mmap_writes), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"allow_os_buffer",
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{offsetof(struct DBOptions, allow_os_buffer), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"create_if_missing",
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{offsetof(struct DBOptions, create_if_missing), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"create_missing_column_families",
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{offsetof(struct DBOptions, create_missing_column_families),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"disableDataSync",
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{offsetof(struct DBOptions, disableDataSync), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"disable_data_sync", // for compatibility
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{offsetof(struct DBOptions, disableDataSync), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"enable_thread_tracking",
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{offsetof(struct DBOptions, enable_thread_tracking), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"error_if_exists",
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{offsetof(struct DBOptions, error_if_exists), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"is_fd_close_on_exec",
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{offsetof(struct DBOptions, is_fd_close_on_exec), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"paranoid_checks",
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{offsetof(struct DBOptions, paranoid_checks), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"skip_log_error_on_recovery",
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{offsetof(struct DBOptions, skip_log_error_on_recovery),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"skip_stats_update_on_db_open",
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{offsetof(struct DBOptions, skip_stats_update_on_db_open),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"new_table_reader_for_compaction_inputs",
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{offsetof(struct DBOptions, new_table_reader_for_compaction_inputs),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"compaction_readahead_size",
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{offsetof(struct DBOptions, compaction_readahead_size), OptionType::kSizeT,
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OptionVerificationType::kNormal}},
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{"use_adaptive_mutex",
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{offsetof(struct DBOptions, use_adaptive_mutex), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"use_fsync",
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{offsetof(struct DBOptions, use_fsync), OptionType::kBoolean,
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OptionVerificationType::kNormal}},
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{"max_background_compactions",
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{offsetof(struct DBOptions, max_background_compactions), OptionType::kInt,
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OptionVerificationType::kNormal}},
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{"max_background_flushes",
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{offsetof(struct DBOptions, max_background_flushes), OptionType::kInt,
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OptionVerificationType::kNormal}},
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{"max_file_opening_threads",
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{offsetof(struct DBOptions, max_file_opening_threads), OptionType::kInt,
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OptionVerificationType::kNormal}},
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{"max_open_files",
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{offsetof(struct DBOptions, max_open_files), OptionType::kInt,
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OptionVerificationType::kNormal}},
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{"table_cache_numshardbits",
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{offsetof(struct DBOptions, table_cache_numshardbits), OptionType::kInt,
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OptionVerificationType::kNormal}},
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{"db_write_buffer_size",
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{offsetof(struct DBOptions, db_write_buffer_size), OptionType::kSizeT,
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OptionVerificationType::kNormal}},
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{"keep_log_file_num",
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{offsetof(struct DBOptions, keep_log_file_num), OptionType::kSizeT,
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OptionVerificationType::kNormal}},
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{"log_file_time_to_roll",
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{offsetof(struct DBOptions, log_file_time_to_roll), OptionType::kSizeT,
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OptionVerificationType::kNormal}},
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{"manifest_preallocation_size",
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{offsetof(struct DBOptions, manifest_preallocation_size),
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OptionType::kSizeT, OptionVerificationType::kNormal}},
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{"max_log_file_size",
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{offsetof(struct DBOptions, max_log_file_size), OptionType::kSizeT,
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OptionVerificationType::kNormal}},
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{"db_log_dir",
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{offsetof(struct DBOptions, db_log_dir), OptionType::kString,
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OptionVerificationType::kNormal}},
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{"wal_dir",
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{offsetof(struct DBOptions, wal_dir), OptionType::kString,
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OptionVerificationType::kNormal}},
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{"max_subcompactions",
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{offsetof(struct DBOptions, max_subcompactions), OptionType::kUInt32T,
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OptionVerificationType::kNormal}},
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{"WAL_size_limit_MB",
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{offsetof(struct DBOptions, WAL_size_limit_MB), OptionType::kUInt64T,
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OptionVerificationType::kNormal}},
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{"WAL_ttl_seconds",
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{offsetof(struct DBOptions, WAL_ttl_seconds), OptionType::kUInt64T,
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OptionVerificationType::kNormal}},
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{"bytes_per_sync",
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{offsetof(struct DBOptions, bytes_per_sync), OptionType::kUInt64T,
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OptionVerificationType::kNormal}},
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{"delayed_write_rate",
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{offsetof(struct DBOptions, delayed_write_rate), OptionType::kUInt64T,
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OptionVerificationType::kNormal}},
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{"delete_obsolete_files_period_micros",
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{offsetof(struct DBOptions, delete_obsolete_files_period_micros),
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OptionType::kUInt64T, OptionVerificationType::kNormal}},
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{"max_manifest_file_size",
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{offsetof(struct DBOptions, max_manifest_file_size), OptionType::kUInt64T,
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OptionVerificationType::kNormal}},
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{"max_total_wal_size",
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{offsetof(struct DBOptions, max_total_wal_size), OptionType::kUInt64T,
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OptionVerificationType::kNormal}},
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{"wal_bytes_per_sync",
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{offsetof(struct DBOptions, wal_bytes_per_sync), OptionType::kUInt64T,
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OptionVerificationType::kNormal}},
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{"stats_dump_period_sec",
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{offsetof(struct DBOptions, stats_dump_period_sec), OptionType::kUInt,
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OptionVerificationType::kNormal}}};
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static std::unordered_map<std::string, OptionTypeInfo> cf_options_type_info = {
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/* not yet supported
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CompactionOptionsFIFO compaction_options_fifo;
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CompactionOptionsUniversal compaction_options_universal;
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CompressionOptions compression_opts;
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TablePropertiesCollectorFactories table_properties_collector_factories;
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typedef std::vector<std::shared_ptr<TablePropertiesCollectorFactory>>
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TablePropertiesCollectorFactories;
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UpdateStatus (*inplace_callback)(char* existing_value,
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uint34_t* existing_value_size,
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Slice delta_value,
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std::string* merged_value);
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std::vector<int> max_bytes_for_level_multiplier_additional;
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*/
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{"compaction_measure_io_stats",
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{offsetof(struct ColumnFamilyOptions, compaction_measure_io_stats),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"disable_auto_compactions",
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{offsetof(struct ColumnFamilyOptions, disable_auto_compactions),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"filter_deletes",
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{offsetof(struct ColumnFamilyOptions, filter_deletes),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"inplace_update_support",
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{offsetof(struct ColumnFamilyOptions, inplace_update_support),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"level_compaction_dynamic_level_bytes",
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{offsetof(struct ColumnFamilyOptions,
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level_compaction_dynamic_level_bytes),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"optimize_filters_for_hits",
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{offsetof(struct ColumnFamilyOptions, optimize_filters_for_hits),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"paranoid_file_checks",
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{offsetof(struct ColumnFamilyOptions, paranoid_file_checks),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"purge_redundant_kvs_while_flush",
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{offsetof(struct ColumnFamilyOptions, purge_redundant_kvs_while_flush),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"verify_checksums_in_compaction",
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{offsetof(struct ColumnFamilyOptions, verify_checksums_in_compaction),
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OptionType::kBoolean, OptionVerificationType::kNormal}},
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{"hard_pending_compaction_bytes_limit",
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{offsetof(struct ColumnFamilyOptions, hard_pending_compaction_bytes_limit),
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OptionType::kUInt64T, OptionVerificationType::kNormal}},
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{"hard_rate_limit",
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{offsetof(struct ColumnFamilyOptions, hard_rate_limit),
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OptionType::kDouble, OptionVerificationType::kDeprecated}},
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{"soft_rate_limit",
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{offsetof(struct ColumnFamilyOptions, soft_rate_limit),
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OptionType::kDouble, OptionVerificationType::kNormal}},
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{"expanded_compaction_factor",
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{offsetof(struct ColumnFamilyOptions, expanded_compaction_factor),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"level0_file_num_compaction_trigger",
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{offsetof(struct ColumnFamilyOptions, level0_file_num_compaction_trigger),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"level0_slowdown_writes_trigger",
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{offsetof(struct ColumnFamilyOptions, level0_slowdown_writes_trigger),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"level0_stop_writes_trigger",
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{offsetof(struct ColumnFamilyOptions, level0_stop_writes_trigger),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"max_bytes_for_level_multiplier",
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{offsetof(struct ColumnFamilyOptions, max_bytes_for_level_multiplier),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"max_grandparent_overlap_factor",
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{offsetof(struct ColumnFamilyOptions, max_grandparent_overlap_factor),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"max_mem_compaction_level",
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{offsetof(struct ColumnFamilyOptions, max_mem_compaction_level),
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OptionType::kInt, OptionVerificationType::kDeprecated}},
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{"max_write_buffer_number",
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{offsetof(struct ColumnFamilyOptions, max_write_buffer_number),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"max_write_buffer_number_to_maintain",
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{offsetof(struct ColumnFamilyOptions, max_write_buffer_number_to_maintain),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"min_write_buffer_number_to_merge",
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{offsetof(struct ColumnFamilyOptions, min_write_buffer_number_to_merge),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"num_levels",
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{offsetof(struct ColumnFamilyOptions, num_levels), OptionType::kInt,
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OptionVerificationType::kNormal}},
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{"source_compaction_factor",
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{offsetof(struct ColumnFamilyOptions, source_compaction_factor),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"target_file_size_multiplier",
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{offsetof(struct ColumnFamilyOptions, target_file_size_multiplier),
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OptionType::kInt, OptionVerificationType::kNormal}},
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{"arena_block_size",
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{offsetof(struct ColumnFamilyOptions, arena_block_size),
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OptionType::kSizeT, OptionVerificationType::kNormal}},
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{"inplace_update_num_locks",
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{offsetof(struct ColumnFamilyOptions, inplace_update_num_locks),
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OptionType::kSizeT, OptionVerificationType::kNormal}},
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{"max_successive_merges",
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{offsetof(struct ColumnFamilyOptions, max_successive_merges),
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OptionType::kSizeT, OptionVerificationType::kNormal}},
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{"memtable_prefix_bloom_huge_page_tlb_size",
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{offsetof(struct ColumnFamilyOptions,
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memtable_prefix_bloom_huge_page_tlb_size),
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OptionType::kSizeT, OptionVerificationType::kNormal}},
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{"write_buffer_size",
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{offsetof(struct ColumnFamilyOptions, write_buffer_size),
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OptionType::kSizeT, OptionVerificationType::kNormal}},
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{"bloom_locality",
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{offsetof(struct ColumnFamilyOptions, bloom_locality),
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OptionType::kUInt32T, OptionVerificationType::kNormal}},
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{"memtable_prefix_bloom_bits",
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{offsetof(struct ColumnFamilyOptions, memtable_prefix_bloom_bits),
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OptionType::kUInt32T, OptionVerificationType::kNormal}},
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{"memtable_prefix_bloom_probes",
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{offsetof(struct ColumnFamilyOptions, memtable_prefix_bloom_probes),
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OptionType::kUInt32T, OptionVerificationType::kNormal}},
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{"min_partial_merge_operands",
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{offsetof(struct ColumnFamilyOptions, min_partial_merge_operands),
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OptionType::kUInt32T, OptionVerificationType::kNormal}},
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{"max_bytes_for_level_base",
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{offsetof(struct ColumnFamilyOptions, max_bytes_for_level_base),
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OptionType::kUInt64T, OptionVerificationType::kNormal}},
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{"max_sequential_skip_in_iterations",
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{offsetof(struct ColumnFamilyOptions, max_sequential_skip_in_iterations),
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OptionType::kUInt64T, OptionVerificationType::kNormal}},
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{"target_file_size_base",
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{offsetof(struct ColumnFamilyOptions, target_file_size_base),
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OptionType::kUInt64T, OptionVerificationType::kNormal}},
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{"rate_limit_delay_max_milliseconds",
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{offsetof(struct ColumnFamilyOptions, rate_limit_delay_max_milliseconds),
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OptionType::kUInt, OptionVerificationType::kDeprecated}},
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{"compression",
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{offsetof(struct ColumnFamilyOptions, compression),
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OptionType::kCompressionType, OptionVerificationType::kNormal}},
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{"compression_per_level",
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{offsetof(struct ColumnFamilyOptions, compression_per_level),
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OptionType::kVectorCompressionType, OptionVerificationType::kNormal}},
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{"comparator",
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{offsetof(struct ColumnFamilyOptions, comparator), OptionType::kComparator,
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OptionVerificationType::kByName}},
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{"prefix_extractor",
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{offsetof(struct ColumnFamilyOptions, prefix_extractor),
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OptionType::kSliceTransform, OptionVerificationType::kByName}},
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{"memtable_factory",
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{offsetof(struct ColumnFamilyOptions, memtable_factory),
|
|
OptionType::kMemTableRepFactory, OptionVerificationType::kByName}},
|
|
{"table_factory",
|
|
{offsetof(struct ColumnFamilyOptions, table_factory),
|
|
OptionType::kTableFactory, OptionVerificationType::kByName}},
|
|
{"compaction_filter",
|
|
{offsetof(struct ColumnFamilyOptions, compaction_filter),
|
|
OptionType::kCompactionFilter, OptionVerificationType::kByName}},
|
|
{"compaction_filter_factory",
|
|
{offsetof(struct ColumnFamilyOptions, compaction_filter_factory),
|
|
OptionType::kCompactionFilterFactory, OptionVerificationType::kByName}},
|
|
{"merge_operator",
|
|
{offsetof(struct ColumnFamilyOptions, merge_operator),
|
|
OptionType::kMergeOperator, OptionVerificationType::kByName}},
|
|
{"compaction_style",
|
|
{offsetof(struct ColumnFamilyOptions, compaction_style),
|
|
OptionType::kCompactionStyle, OptionVerificationType::kNormal}}};
|
|
|
|
static std::unordered_map<std::string,
|
|
OptionTypeInfo> block_based_table_type_info = {
|
|
/* currently not supported
|
|
std::shared_ptr<Cache> block_cache = nullptr;
|
|
std::shared_ptr<Cache> block_cache_compressed = nullptr;
|
|
*/
|
|
{"flush_block_policy_factory",
|
|
{offsetof(struct BlockBasedTableOptions, flush_block_policy_factory),
|
|
OptionType::kFlushBlockPolicyFactory, OptionVerificationType::kByName}},
|
|
{"cache_index_and_filter_blocks",
|
|
{offsetof(struct BlockBasedTableOptions, cache_index_and_filter_blocks),
|
|
OptionType::kBoolean, OptionVerificationType::kNormal}},
|
|
{"index_type",
|
|
{offsetof(struct BlockBasedTableOptions, index_type),
|
|
OptionType::kBlockBasedTableIndexType, OptionVerificationType::kNormal}},
|
|
{"hash_index_allow_collision",
|
|
{offsetof(struct BlockBasedTableOptions, hash_index_allow_collision),
|
|
OptionType::kBoolean, OptionVerificationType::kNormal}},
|
|
{"checksum",
|
|
{offsetof(struct BlockBasedTableOptions, checksum),
|
|
OptionType::kChecksumType, OptionVerificationType::kNormal}},
|
|
{"no_block_cache",
|
|
{offsetof(struct BlockBasedTableOptions, no_block_cache),
|
|
OptionType::kBoolean, OptionVerificationType::kNormal}},
|
|
{"block_size",
|
|
{offsetof(struct BlockBasedTableOptions, block_size), OptionType::kSizeT,
|
|
OptionVerificationType::kNormal}},
|
|
{"block_size_deviation",
|
|
{offsetof(struct BlockBasedTableOptions, block_size_deviation),
|
|
OptionType::kInt, OptionVerificationType::kNormal}},
|
|
{"block_restart_interval",
|
|
{offsetof(struct BlockBasedTableOptions, block_restart_interval),
|
|
OptionType::kInt, OptionVerificationType::kNormal}},
|
|
{"filter_policy",
|
|
{offsetof(struct BlockBasedTableOptions, filter_policy),
|
|
OptionType::kFilterPolicy, OptionVerificationType::kByName}},
|
|
{"whole_key_filtering",
|
|
{offsetof(struct BlockBasedTableOptions, whole_key_filtering),
|
|
OptionType::kBoolean, OptionVerificationType::kNormal}},
|
|
{"format_version",
|
|
{offsetof(struct BlockBasedTableOptions, format_version),
|
|
OptionType::kUInt32T, OptionVerificationType::kNormal}}};
|
|
} // namespace rocksdb
|
|
|
|
#endif // !ROCKSDB_LITE
|