Allow uploaders, mergers and exporters to process more than 2 files

[GoogleCodeExporter]

As:
An uploader, merger and exporter

I want to be able to:
Select more than two files to merge (and merge them).

So that I can:
Merge more than two files in one parse, so I don't have to upload two, then 
export, upload the exported file, and then merge with a third file, and so on.

Original issue reported on code.google.com by l33h...@gmail.com on 6 Apr 2011 at 10:30

[GoogleCodeExporter]

Original comment by l33h...@gmail.com on 6 Apr 2011 at 1:53

• Added labels: Milestone-Release2.0

[GoogleCodeExporter]

This could be achieved using a "wrapper" which merges a list of files, two at a 
time, after their keys have been specified. This may stop upon finding a 
problem (e.g. data conflict) and possibly send an email to the user. Certain 
"pre-flight checks" could be run, and a list of all the distinct fields across 
the files be presented for checking, uniqueness of keys checked and duplicates 
shown, etc. This could run as a background process, allowing the user to 
continue with other tasks. A separate feature of estimated completion time 
would help.

Original comment by l33h...@gmail.com on 6 Jul 2011 at 10:18

[GoogleCodeExporter]

Include feature to edit the order of the files selected for batch processing.

Original comment by l33h...@gmail.com on 6 Jul 2011 at 10:46

[GoogleCodeExporter]

An "append" mode may be used if it is found int eh "pre-flight checks" that 
there is no overlap in the keys amongst the files. (This may naturally be 
extended to the merge of just two files, to make the process quicker.)

Original comment by l33h...@gmail.com on 6 Jul 2011 at 10:54

[GoogleCodeExporter]

Original comment by l33h...@gmail.com on 6 Jul 2011 at 10:55

• Changed state: Accepted