Seems to me this is nothing more than "clone and also add these per-table iterators on all scopes". Might be a neat little utility to wrap those features into a single step from the user's perspective.
-- Christopher L Tubbs II http://gravatar.com/ctubbsii On Wed, May 15, 2013 at 8:58 PM, Josh Elser <[email protected]> wrote: > Oh, I see what you mean. Table B was created from table A with a function F > (where F is some collection of iterators like you said). > > It could be a neat application of the clone command. Storing that > information on table B is some exercise in where to put that immutable > information (that's me ignoring that problem :P). > > You say git: do you actually intend to have a cheap replay ability? Or > merely be able to view the history and be able to work through the > transformations again? > > Seems reasonable for a 1.6 wish to me. > > > On 05/15/2013 08:44 PM, David Medinets wrote: >> >> I don't see those as covering the same ground. Let's say I have an >> Accumulo table for a given human's genome. As a scientist, I want to apply a >> set of filters to create a subset of the genome. This provides a transform >> from data-set A to data-set B. Since iterators were used for the transform, >> we could serialize the set of iterators used by the transformation. Both >> data-sets are immutable. Think git for data-sets. >> >> >> On Wed, May 15, 2013 at 4:25 PM, Christopher <[email protected] >> <mailto:[email protected]>> wrote: >> >> I think this might relate to ACCUMULO-1397, in the form of providing a >> mechanism to specify iterator profiles, or ACCUMULO-415. >> >> -- >> Christopher L Tubbs II >> http://gravatar.com/ctubbsii >> >> >> On Wed, May 15, 2013 at 2:51 PM, David Medinets >> <[email protected] <mailto:[email protected]>> wrote: >> > If you apply a set of iterators to one table to produce another, >> it seems >> > possible to serialize the iterator stack alongside the new table >> in some >> > catalog to provide provenance. The assumption is that the tables are >> > immutable, I think. Is anyone doing this or has anyone thought >> about doing >> > so? Just curious and wanted to ask before I forgot about the idea. >> >> >
