Add stable and update support to Mango

[garrensmith]

This brings mango inline with views by supporting the new options
stable and update.

Fixes #621

Testing recommendations

See the test for an example on how to test. I'm not really sure of a way to test the stable option.

GitHub issue number

#621

Checklist

• Code is written and works correctly;
• Changes are covered by tests;
• Documentation reflects the changes; (feat: document stable/update/stale options for _find couchdb-documentation#145)

[tonysun83]

stable and update are replacing stale right? will the same options work for text indexes?

[garrensmith]

Yes, those are replacing stale. I'm not sure about text indexes. I don't think so All misspelling thanks to my iPhone.

…

________________________________ From: Tony Sun <[email protected]> Sent: Wednesday, July 5, 2017 5:49:02 PM To: apache/couchdb Cc: garren smith; Author Subject: Re: [apache/couchdb] Add stable and update support to Mango (#628) stable and update are replacing stale right? will the same options work for text indexes? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<#628 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AAK9AnyBpRhKKGBhdWyDXRBzDwV6mlWTks5sK7BugaJpZM4OMGtD>.

[janl]

Please see #621 (comment) ff. for comment.

[janl]

added stale, rebased with master and squashed my commits.

[janl]

+1

[tonysun83]

@garrensmith @janl I like the addition of stale! We'll need to add in support for text indexes for stale as well. This way we are at least trying to be consistent across index options. We may also some logic if the user specifies stable or update for text indexes (which doesn't support that option, but we may already just ignore invalid options). We could move those changes into another PR if this a pressing option we want.

[davisp]

+1

@tonysun83 I'd make any changes to the text indexes as new work. I checked and mango_cursor_text will ignore any unknown options so there's no breakage there.

[tonysun83]

Sounds good. +1

[iilyak]

Merging it in on Garren's behalf since he is on vacation at the moment.