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3 Commits

Author SHA1 Message Date
Vladimir Krivopalov
926cdc6d70 Fix timestamp_epoch value which was truncated on exceeding int32_t type limit. 
Signed-off-by: Vladimir Krivopalov <vladimir@scylladb.com>
 2018-05-04 15:45:10 -07:00
Vladimir Krivopalov
b3572acd6e A few improvements to encoding_stats structure. 
- Use the same default epoch as Origin
  - Use default value for the encoding_stats parameter in sstable::write_components()

Signed-off-by: Vladimir Krivopalov <vladimir@scylladb.com>
Message-Id: <846c6d2cbb97d2dd25968cb00b8557c86ff5e35c.1524854727.git.vladimir@scylladb.com>
 2018-04-27 22:03:38 +03:00
Vladimir Krivopalov
948c4d79d3 Collect encoding statistics for memtable updates. 
We keep track of all updates and store the minimal values of timestamps,
TTLs and local deletion times across all the inserted data.
These values are written as a part of serialization_header for
Statistics.db and used for delta-encoding values when writing Data.db
file in SSTables 3.0 (mc) format.

For #1969.

Signed-off-by: Vladimir Krivopalov <vladimir@scylladb.com>
 2018-04-25 15:39:14 -07:00