Replace boost::scoped_ptr with std::unique_ptr.

[cumulus.git] / contrib / upgrade0.6-localdb.sql

diff --git a/contrib/upgrade0.6-localdb.sql b/contrib/upgrade0.6-localdb.sql
index 0733ba1..49fc1aa 100644 (file)
--- a/contrib/upgrade0.6-localdb.sql
+++ b/contrib/upgrade0.6-localdb.sql
@@ -4,16 +4,19 @@
 -- This script should be loaded after connecting to the database to be
 -- upgraded.
 
--- Database schema changes: the size column was added to the segments table,
--- and the segments_used table was added.  Rather than upgrade the segments
--- table in-place, we create a new table and then rename it over the old
--- segments table.
+-- Database schema changes: the size and mtime columns were added to the
+-- segments table, and the segments_used table was added.  Rather than upgrade
+-- the segments table in-place, we create a new table and then rename it over
+-- the old segments table.  The intent column was also added to the snapshots
+-- table.
 create table segments_new (
     segmentid integer primary key,
     segment text unique not null,
     path text,
     checksum text,
-    size integer
+    mtime real,
+    size integer,
+    expire_time integer
 );
 
 create table segments_used (
@@ -21,15 +24,24 @@ create table segments_used (
     segmentid integer not null,
     utilization real
 );
+create unique index segments_used_index
+    on segments_used(snapshotid, segmentid);
+
+alter table snapshots add column intent real;
+
+-- Initialize the intent column; set all old snapshots to have intent 1
+-- (intended to be a daily snapshot).
+update snapshots set intent = 1;
 
 -- Compute the size of each of the segments, if possible, based on our
 -- knowledge of the objects stored in them.
 insert into segments_new
-select segmentid, segment, path, checksum, size
+select segmentid, segment, path, checksum, mtime, size, null as expire_time
 from
     (select segmentid, segment, path, checksum from segments)
 left join
-    (select segmentid, sum(size) as size from block_index group by segmentid)
+    (select segmentid, sum(size) as size, max(timestamp) as mtime
+     from block_index group by segmentid)
 using (segmentid);
 
 drop table segments;
@@ -50,3 +62,15 @@ using (segmentid);
 
 -- The snapshot_contents table is obsolete.
 drop table snapshot_contents;
+
+-- Upgrade database views.
+drop view cleaning_order;
+drop view segment_info;
+
+create view segment_info as
+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)
+using (segmentid);