Use custom strings ordering when sorting

[pstibrany]

We would like to use custom ordering function when sorting matched documents. Right now ordering uses simple Go string comparison, but we would prefer to use ordering by using Collator (or more generally by custom Less function).

How would you suggest to implement such feature?

I see at least two possibilities:

• change SortOrder type into a struct with Less function.
• keep SortOrder as-is (slice), but change SortOrder.Compare function to take explicit Less function. This would require propagation of Less function from SearchRequest

[abhinavdangeti]

Have you looked into using the custom sort func facility available within the SearchRequest ..

bleve/search_no_knn.go

Line 80 in 991cbcd

sortFunc func(sort.Interface)

You can set this via ..

bleve/search.go

Line 582 in 991cbcd

// SetSortFunc sets the sort implementation to use when sorting hits.

[pstibrany]

Have you looked into using the custom sort func facility available within the SearchRequest ..

Yes, we have found and explored this option too (after writing this issue), but there were some limitations that made it difficult to use (iirc it was only applied after initial paging (?)).

For now we have put support for custom ordering on hold, and simply use default Go string sorting.