Can you explain the circumstances where you get a negative number of results? Ideally this would have a test-case, too.

@acdha In some cases the some of the indexes may delete(or not properly indexed) or which may not have pk which will result in
increase of _ignored_result_count and if query match count returns 0 then it will result in negative value. According to python datamodel __len__ should not return negative values.
So, It needs to be fixed.
Thanks!

@AnjaneyuluBatta505

In some cases the some of the indexes may delete(or not properly indexed) or which may not have pk

Wouldn't be the index then be in a malformed state? Searching may lead into wrong search results, or nothing will be found, although the search term should be found?

@frankystone
searching will return correct results because if index's are malformed then they will not be cosidered. So, we can return 0 results. If we did not fix 'len' then it will raise ValueError. So, it needs to be fixed.

@frankystone and @acdha please approve the merge request.

The PR still could use some tests

#1601 ist not working for me: no error anymore, but also no results found
(Django 2.1, Python3.5, Debian Linux 9)

@sebhaase try the command below

python manage.py update_index  --remove

It will update the new records and removes the deleted records.

@AnjaneyuluBatta505 you misunderstood. Nothing was deleted. I'm saying #1601 causes that I´m not seeing the correct answer. Old haystack version still works for me - update_index makes no difference.

@sebhaase I've tried it. It's working for me.

The remove option seems to work also for me.

But it is just like rebuild_index, at least it is just that slow :(

This is still happening