tow
Support result grouping
Solr 3.3 added support for result grouping such that results can be returned hierarchically grouped by a common field value like so:
major_value: a
major_value: a, minor_value: 1
major_value: a, minor_value: 2
major_value: a, minor_value: 3
major_value: b
major_value: b, minor_value: 4
major_value: b, minor_value: 5
This functionality is particularly useful in retail searching where there are a number of "SKU"s (Red Mens Small, Blue Womens Medium) under a particular "product" (Awesome T-shirt #4).
I added support for this functionality to sunburnt such that you can call:
resp = s.query().group_by('major_value', limit=10).execute()
and get back a list of groupings as resp.result.groups:
for major_value. docs in resp.result.groups:
print("major_value: %s, # of docs: %s" % (major_value, len(docs))
for doc in docs:
print(" major_value: %s, minor_value: %s" % (doc['major_value'], doc['minor_value'])
which yields:
major_value: a, # of docs: 3
major_value: a, minor_value: 1
major_value: a, minor_value: 2
major_value: a, minor_value: 3
major_value: b, # of docs: 2
major_value: b, minor_value: 4
major_value: b, minor_value: 5
A screencast detailing the enhancements and usage will be made available shortly.
Bump :D
Would be way cool to see this merged into master. Any thoughts, @tow?
Just a side-note, there's a new feature in Solr 3.4 that I'd also eventually like to roll in, post-grouping facet counts. I plan to get to this by the end of the year, but in the meantime a merge or feedback on a merge on what's here would be super-helpful.
Sorry - have been busy recently!
I haven't had a chance to look at this properly; however what would make it much easier for me to check & merge is a) docs and b) tests.
I'm aiming to do a big merge & release in the next week or two, but nothing will get pulled in until it's fully documented & tested - there's more chance of something getting in quickly if it comes with docs & tests already attached!
This is many years old, but did anybody ever pursue this PR? @divideby0 do you have a fork somewhere with this?
