Andres Notzli 1d20fa9d0f Fixed and simplified merge_helper ... Summary: MergeUntil was not reporting a success when merging an operand with a Value/Deletion despite the comments in MergeHelper and CompactionJob indicating otherwise. This lead to operands being written to the compaction output unnecessarily: M1 M2 M3 P M4 M5 --> (P+M1+M2+M3) M2 M3 M4 M5 (before the diff) M1 M2 M3 P M4 M5 --> (P+M1+M2+M3) M4 M5 (after the diff) In addition, the code handling Values/Deletion was basically identical. This patch unifies the code. Finally, this patch also adds testing for merge_helper. Test Plan: make && make check Reviewers: sdong, rven, yhchiang, tnovak, igor Reviewed By: igor Subscribers: tnovak, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D42351		2015-07-17 09:27:24 -07:00
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string_append	Merge remote-tracking branch 'origin' into ms_win_port	2015-07-02 11:34:22 -07:00
put.cc	Enhance partial merge to support multiple arguments	2014-03-24 17:57:13 -07:00
uint64add.cc	Fixed and simplified merge_helper	2015-07-17 09:27:24 -07:00