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From Garren Smith <gar...@apache.org>
Subject Re: Mango query with $eq operator returns no results, but $regex does
Date Thu, 24 Aug 2017 18:59:37 GMT
Could you supply some example docs so I can try and reproduce it.

On Thu, 24 Aug 2017 at 8:07 PM Matt Cosentino <mcosentino@cacorp.com> wrote:

> Yes.
>
> - Matt
>
>
> -----Original Message-----
> From: Garren Smith [mailto:garren@apache.org]
> Sent: Thursday, August 24, 2017 12:51 PM
> To: user@couchdb.apache.org
> Subject: Re: Mango query with $eq operator returns no results, but $regex
> does
>
> Do you have any docs with the field type = client?
>
> On Thu, 24 Aug 2017 at 7:47 PM Matt Cosentino <mcosentino@cacorp.com>
> wrote:
>
> > Tried that, it is using the type index. Isn't that what I want? That's
> > the only field in my selector.
> >
> > - Matt
> >
> >
> > -----Original Message-----
> > From: Garren Smith [mailto:garren@apache.org]
> > Sent: Thursday, August 24, 2017 12:34 PM
> > To: user@couchdb.apache.org
> > Subject: Re: Mango query with $eq operator returns no results, but
> > $regex does
> >
> > I think the best next step is to run the query against _explain
> > instead of _find. It will tell you which index it has selected.
> >
> > The other option is to add another selector with client_id > null. I'm
> > guessing it is choosing the type, customer_name index and you want it
> > to use the type, client_id index
> >
> > On Thu, 24 Aug 2017 at 6:42 PM Matt Cosentino <mcosentino@cacorp.com>
> > wrote:
> >
> > > special: _id
> > > json: type, client_id
> > > json: last_payment
> > > json: type
> > > json: date
> > > json: date, time
> > > json: type, client_id, date
> > > json: datetime
> > > json: client_id
> > > json: type, customer_name
> > > json: customer_name
> > >
> > > { selector: { "type": { "$eq": "client" } } }
> > >
> > > - Matt
> > >
> > >
> > > -----Original Message-----
> > > From: Garren Smith [mailto:garren@apache.org]
> > > Sent: Thursday, August 24, 2017 11:00 AM
> > > To: user@couchdb.apache.org
> > > Subject: Re: Mango query with $eq operator returns no results, but
> > > $regex does
> > >
> > > Can you give me a full list of all your indexes and the query you
> > > are running.
> > >
> > > On Thu, 24 Aug 2017 at 5:45 PM Matt Cosentino
> > > <mcosentino@cacorp.com>
> > > wrote:
> > >
> > > > Ugraded to 2.1, still get no results, and now get no results for
> > > > the $regex query as well. If I do a query of $gt null, the results
> > > > I'm looking for are there.
> > > >
> > > > - Matt
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Matt Cosentino [mailto:mcosentino@cacorp.com]
> > > > Sent: Thursday, August 24, 2017 9:41 AM
> > > > To: user@couchdb.apache.org
> > > > Subject: RE: Mango query with $eq operator returns no results, but
> > > > $regex does
> > > >
> > > > I have an index created for "type".
> > > >
> > > > {
> > > >  "type": "json",
> > > >  "def": {
> > > >   "fields": [
> > > >    {
> > > >     "type": "asc"
> > > >    }
> > > >   ]
> > > >  }
> > > > }
> > > >
> > > > I'll try upgrading my test server to 2.1 and see if that helps,
> thanks.
> > > >
> > > > - Matt
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Garren Smith [mailto:garren@apache.org]
> > > > Sent: Thursday, August 24, 2017 4:38 AM
> > > > To: user <user@couchdb.apache.org>
> > > > Subject: Re: Mango query with $eq operator returns no results, but
> > > > $regex does
> > > >
> > > > Hi Matt,
> > > >
> > > > What are your indexes? Also could you try these queries on CouchDB
> 2.1.
> > > > The index selector was improved significantly in 2.1 to avoid
> > > > these types of issues.
> > > >
> > > > Cheers
> > > > Garren
> > > >
> > > > On Wed, Aug 23, 2017 at 9:49 PM, Matt Cosentino
> > > > <mcosentino@cacorp.com>
> > > > wrote:
> > > >
> > > > > This is very strange. I have a very simple query:
> > > > >
> > > > > { selector: { "type": { "$eq": "client" } } }
> > > > >
> > > > > This returns no results, but there are documents with a type
> > > > > value of client, and the index exists.
> > > > >
> > > > > I try other values in the query and they all work.
> > > > >
> > > > > I try this query instead:
> > > > >
> > > > > { selector: { "type": { "$regex": "client" } } }
> > > > >
> > > > > This gives me the results I expect. Why?
> > > > >
> > > > > Here's another strange thing. I have another version of my
> > > > > database on another server. I run the original query there and
> > > > > it works. Both servers are running version 2.0 of CouchDB. Does
> > > > > anyone have any idea what could be wrong?
> > > > >
> > > > >
> > > > > - Matt
> > > > >
> > > > >
> > > >
> > >
> >
>

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