| commit | 5d47afd5e35022e0ddeab9ea884eca7dc661a9e4 | [log] [tgz] |
|---|---|---|
| author | Shawn O. Pearce <sop@google.com> | Thu Jan 08 08:30:09 2009 -0800 |
| committer | Shawn O. Pearce <sop@google.com> | Thu Jan 08 08:31:48 2009 -0800 |
| tree | ab3ddbc4980dd30cd76a12b1b6773bd711fc830f | |
| parent | 7cbecd9f4571cc76c2a04470a78284f1485a433b [diff] |
Change backup to use GAE's new __key__ paging technique Recently Google App Engine learned how to access the entity primary key as part of the query's where clause, permitting range scans by key. This allows us to efficiently page the results and get through all entities without making updates to them. Unfortunately the change means its harder to resume if we abort, as we don't have a way to pick up where we left off from. Signed-off-by: Shawn O. Pearce <sop@google.com>