tree 0c7bdaa8abe1203e7924d5dc37127f802ac7105c
parent d48ac5bf0175632324651c12900f575bb4e2d036
author Shawn Pearce <spearce@spearce.org> 1499970253 -0700
committer Shawn Pearce <spearce@spearce.org> 1503007611 -0700

reftable: support threshold based compaction

Transactions may wish to merge several tables together as part of an
operation.  Setting a byte limit allows the transaction to consider
only some recent tables, bounding the cost of the compaction.

Change-Id: If037f2cbdc174ff1a215d5917178b33cde4ddaba