LIMIT statement functionality

[netfl0]

The default sphinx configuration returns 20 results, it would be nice to be able to configure that from django methods on the fly.

something like:

MyIndex.objects.filter(content__serach, limit=40)

I was thinking something similar for the offset functionality, but I don't know if the RT indexes support that yet.

[btimby]

Peter, this is a good idea. I am not sure of the details at this time
either. I know that typically Django uses slicing to define limits.

MyIndex.objects.filter(content__search='keyword')[:20]

Would limit to the first 20 results. This could be added to the Sphinx backend.

MyIndex.objects.filter(content__search='keyword')[20:40]

The above would start at 20, and return 40 records.

[netfl0]

I learned something new here :)

getitem() and slice objects

I think your recommended implementation is elegant. I have a lot of
ideas for features, should I open up a bunch of separate tickets?

[btimby]

Please do.

[btimby]

Apparently Sphinx does not support the OFFSET keyword. This is what is used to perform a query that starts at a particular index, therefore the following is not valid:

MyIndexModel.objects.all()[1:2]

But, this is valid:

MyIndexModel.objects.all()[:2]

It would be nice if Sphinx supported OFFSET in addition to LIMIT, however, we can probably do some hackery to emulate it in the SphinxSQLCompiler. More research is needed.

[btimby]

Opened issue upstream.

http://sphinxsearch.com/bugs/view.php?id=1154

[dbrgn]

In the meantime, could you add simple LIMIT functionality?

Also, I think django-sphinx-db should return max_matches items by default, not 20. If people want, they can still limit it using slicing, but otherwise it will confuse people.