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3 Commits

Author SHA1 Message Date
Siying Dong 3c327ac2d0 Change RocksDB License 
Summary: Closes https://github.com/facebook/rocksdb/pull/2589

Differential Revision: D5431502

Pulled By: siying

fbshipit-source-id: 8ebf8c87883daa9daa54b2303d11ce01ab1f6f75
 2017-07-15 16:11:23 -07:00
omegaga 2306167d30 Fix clang build failure and refactor unit test 
Summary: <endian.h> is not platform independent. Switch to our own endianness transformation function instead.

Test Plan: Pass Travis CI. Refactor tests to make sure endianness transformation runs properly.

Reviewers: IslamAbdelRahman, sdong

Reviewed By: sdong

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D61389
 2016-08-02 15:16:39 -07:00
omegaga d51dc96a79 Experiments on column-aware encodings 
Summary:
Experiments on column-aware encodings. Supported features: 1) extract data blocks from SST file and encode with specified encodings; 2) Decode encoded data back into row format; 3) Directly extract data blocks and write in row format (without prefix encoding); 4) Get column distribution statistics for column format; 5) Dump data blocks separated by columns in human-readable format.

There is still on-going work on this diff. More refactoring is necessary.

Test Plan: Wrote tests in `column_aware_encoding_test.cc`. More tests should be added.

Reviewers: sdong

Reviewed By: sdong

Subscribers: arahut, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D60027
 2016-08-01 14:50:19 -07:00