X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=schema.sql;h=850e6a9ace316196a494d7a91b77a95f7c21ceb0;hb=5b346a4689ac2c8458e30fd8752abd6e2f207c56;hp=3cf175b3d12dfb28f3e7cc75e5c92113ae1039ad;hpb=cc2d3611ed50f5965a9138ffaf3262417993c4f8;p=cumulus.git

diff --git a/schema.sql b/schema.sql
index 3cf175b..850e6a9 100644
--- a/schema.sql
+++ b/schema.sql
@@ -19,7 +19,8 @@ create table segments (
     path text,
     checksum text,
     mtime real,
-    size integer
+    size integer,
+    expire_time integer         -- snapshotid of latest snapshot when expired
 );
 
 -- Index of all blocks which have been stored, by checksum.
@@ -41,11 +42,13 @@ create table segments_used (
     segmentid integer not null,
     utilization real
 );
+create unique index segments_used_index
+    on segments_used(snapshotid, segmentid);
 
 -- Overall estimate of segment utilization, for all snapshots combined.
 create view segment_info as
-select segmentid, mtime, size, cast(size * utilization as integer) as used,
-       utilization
+select segmentid, mtime, size, expire_time,
+       cast(size * utilization as integer) as used, utilization
 from segments join
      (select segmentid, max(utilization) as utilization
       from segments_used group by segmentid)