Siying Dong c4548d5f1f WriteBatch to provide a way for user to query data size directly and only return constant reference of data in Data() ... Summary: WriteBatch::Data() now is easily to be misuse by users. Also, there is no cheap way for user of WriteBatch to know the data size accumulated. This patch fix the problem by: (1) return a constant reference to Data() so it's obvious to caller what it means. (2) add a function to return data size directly Test Plan: make all check Reviewers: haobo, igor, kailiu Reviewed By: kailiu CC: zshao, leveldb Differential Revision: https://reviews.facebook.net/D15123		2014-01-13 16:52:14 -08:00
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rocksdb	WriteBatch to provide a way for user to query data size directly and only return constant reference of data in Data()	2014-01-13 16:52:14 -08:00
utilities	Feature requests for BackupableDB	2014-01-09 12:24:28 -08:00