On Wed, Sep 21, 2011 at 8:41 PM, Jeroen Vermeulen <j...@canonical.com> wrote: > On 2011-09-21 15:25, Robert Collins wrote: > >> Not me - Abel. He has been slaving hard over the last few weeks to >> bring together StormRangeFactory - so that batches can use value range >> contraints rather than offsets, which postgresql can often answer much >> more efficiently. >> >> I've written about this before I think, and I know you've done a >> presentation on it @ the epic ;) > > Hence my interest! Looking forward to the change, but had no reasonable way > to be certain whether your announcement was really related. > > Does this landing activate the change-over to value-range constraints? I had > been seeing the “memo” URL args and assumed they were related.
There were infrastructure changes needed in lazr.batching - they brought in the memo concept, and a range factory whose memos are merely offset's into the query. The StormRangeFactory is used to convert a specific batch from the default (memo's that are offsets) into the sexy (memo's that are endpoint markers). -Rob _______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : launchpad-dev@lists.launchpad.net Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
