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Adding option to save PlainTable index and bloom filter in SST file.

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Summary:
Adding option to save PlainTable index and bloom filter in SST file.
If there is no bloom block and/or index block, PlainTableReader builds
new ones. Otherwise PlainTableReader just use these blocks.

Test Plan: make all check

Reviewers: sdong

Reviewed By: sdong

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D19527
This commit is contained in:
Stanislau Hlebik
2014-07-18 16:58:13 -07:00
parent 92d73cbe78
commit 9d70cce047
17 changed files with 1041 additions and 448 deletions
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7
include/rocksdb/table.h
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@@ -119,6 +119,8 @@ enum EncodingType : char {
struct PlainTablePropertyNames {
static const std::string kPrefixExtractorName;
static const std::string kEncodingType;
static const std::string kBloomVersion;
static const std::string kNumBloomBlocks;
};
const uint32_t kPlainTableVariableLength = 0;
@@ -166,6 +168,11 @@ EncodingType encoding_type = kPlain;
// @full_scan_mode: mode for reading the whole file one record by one without
// using the index.
bool full_scan_mode = false;
// @store_index_in_file: compute plain table index and bloom filter during
// file building and store it in file. When reading
// file, index will be mmaped instead of recomputation.
bool store_index_in_file = false;
};
// -- Plain Table with prefix-only seek