I'm not sure what you ate trying to accomplish...that link just says not found. Try getting Erica installed... That will help you out a lot.
When you make your map/reduce function in the reduce section..instead of a function... Just put _count. And couchdb will recognize that as a call to a built in function. Regards, Stanley On Jul 26, 2013 4:51 PM, "Hank Knight" <hknight...@gmail.com> wrote: > I don't care about the string length. I thought that fruit.length > would count the instances of that fruit however at a closer glance it > only tells me how many characters are in the string! > > Specifically, how can I use function _count? > > Please look here: > > https://zurv3aqzm.iriscouch.com/_utils/database.html?fruit/_all_docs > https://zurv3aqzm.iriscouch.com/_utils/database.html?fruit/_temp_view > > Thanks. > > On Fri, Jul 26, 2013 at 5:41 PM, Stanley Iriele > <siri...@breaktimestudios.com> wrote: > > Also you can use arrays as keys as well in group by that.. So [fruit, > > weight, etc,] and value can be whatever you want...then use the couchdb > > built in reduce function _count > > On Jul 26, 2013 4:34 PM, "Stanley Iriele" <siriele...@gmail.com> wrote: > > > >> Is fruit a string or an array here?.. Why do you care about the fruit > >> length? > >> On Jul 26, 2013 4:29 PM, "Hank Knight" <hknight...@gmail.com> wrote: > >> > >> > I have 1000 of rows but the containing data about fruit. There are > >> > only 10 unique values for the field "fruit". > >> > > >> > I would like to count the total number of occurrences for each unique > >> > "fruit" value. > >> > > >> > This returns 1000 results: > >> > > >> > function(doc) { > >> > if (doc.fruit) emit(doc.fruit,doc.fruit.length); > >> > } > >> > > >> > How can I limit the results so each unique value for fruit is only > >> > returned once? > >> > In MySQL I would use something like: > >> > SELECT `fruit`, COUNT(`fruit`) GROUP BY `fruit` > >> > > >> > --- > >> > Thanks! > >> > > >> >
