tree 0b3c31db29342b28e6015786d01303f8bb151a42
parent a0dd94657f2f62b42fae2cdbd26b255e8fb95848
author Robert Newson <rnewson@apache.org> 1523291851 +0100
committer Robert Newson <rnewson@apache.org> 1523363430 +0100

Record and expose last compaction time

For a clustered database, report the earliest compaction time from any
shard. If any shard does not have a recorded compaction time, show
this as null to avoid confusion.