Sorry for the pollution. Sorting by function will only be possible with 1.5.
In https://issues.apache.org/jira/browse/SOLR-1297, Grant writes: """ Note, there is a temporary workaround for this: (main query)^0 func(...) """ Is that workaround an option for my use case? Thanks, Chantal On Fri, 2010-07-09 at 12:08 +0200, Chantal Ackermann wrote: > [P.S. to my first post] > > Further contemplating http://wiki.apache.org/solr/FunctionQuery. > > I am using 1.4.1, the date field is configured like this: > <fieldType name="date" class="solr.DateField" sortMissingLast="true" > omitNorms="true"/> > > (The schema has been created using the schema file from 1.4.0, and I > haven't changed anything when upgrading to 1.4.1. TrieDate is said to be > the default in 1.4, so I would expect this date field to have that > type?) > > On the wiki page, the following example is listed: > Example: ms(NOW/DAY) > Could I do that same thing with my own date? > ms(start_date/DAY) > > I tried that query: > http://192.168.2.40:8080/solr/epg/select?qt=dismax&fl=start_date,title&sort=ms%28start_date/DAY%29%20asc,title%20asc > > (search for all *:* configured in solrconfig.xml for dismax) > > I get the following error message back: > """ > message can not sort on undefined field: ms(start_date/DAY) > > description The request sent by the client was syntactically incorrect > (can not sort on undefined field: ms(start_date/DAY)). > """ > > I am a complete newbie when it comes to function queries. > > Thanks for any suggestions! > Chantal > > On Fri, 2010-07-09 at 11:44 +0200, Chantal Ackermann wrote: > > Dear all, > > > > this is not a new problem, I just wanted to check whether with 1.4 there > > might have been changes that allow a different approach. > > > > In my query, I retrieve results that have a date field. I have to sort > > the result by day only, then by a different string field. The time of > > that date shall not be used for sorting. > > I cannot filter the results on a certain date (day). > > > > This thread confirms my first thought that I need another field in the > > index: > > http://search.lucidimagination.com/search/document/422dc30e0a222c28/sorting_dates_with_reduced_precision#46566037750d7b5 > > > > However, is it possible to use the DateMathParser somehow in the > > function queries? > > If it's not yet possible - why not: > > (a) is there are great risk that the performance would be bad? Or some > > other reason that discourages this solution. > > (b) simple not implemented > > > > In case of (b), I might try to implement it. > > > > Thanks! > > Chantal > > >
