ae8571f5c2
Summary: `CompressBlock()` will return the uncompressed slice (i.e. `Slice(value_unc)`) if compression ratio is not good enough. This is undesired. We need to always assign the compressed slice to `value`. Closes https://github.com/facebook/rocksdb/pull/2447 Differential Revision: D5244682 Pulled By: yiwu-arbug fbshipit-source-id: 6989dd8852c9622822ba9acec9beea02007dff09