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rocksdb/utilities/write_batch_with_index
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agiardullo 03b08ba9a9 Return MergeInProgress when fetching from transactions or WBWI with overwrite_key 
Summary:
WriteBatchWithIndex::GetFromBatchAndDB only works correctly for overwrite_key=false.  Transactions use overwrite_key=true (since WriteBatchWithIndex::GetIteratorWithBase only works when overwrite_key=true).  So currently, Transactions could return incorrectly merged results when calling Get/GetForUpdate().

Until a permanent fix can be put in place, Transaction::Get[ForUpdate] and WriteBatchWithIndex::GetFromBatch[AndDB] will now return MergeInProgress if the most recent write to a key in the batch is a Merge.

Test Plan: more tests

Reviewers: sdong, yhchiang, rven, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D47817
 		2015-09-30 11:14:42 -07:00
..
write_batch_with_index.cc Return MergeInProgress when fetching from transactions or WBWI with overwrite_key 2015-09-30 11:14:42 -07:00
write_batch_with_index_internal.cc Return MergeInProgress when fetching from transactions or WBWI with overwrite_key 2015-09-30 11:14:42 -07:00
write_batch_with_index_internal.h Return MergeInProgress when fetching from transactions or WBWI with overwrite_key 2015-09-30 11:14:42 -07:00
write_batch_with_index_test.cc Return MergeInProgress when fetching from transactions or WBWI with overwrite_key 2015-09-30 11:14:42 -07:00