On Tue, Jul 19, 2011 at 11:41 PM, Jonathan Rochkind <rochk...@jhu.edu> wrote:
> Is it generally recognized that this terminology is confusing, or is it just
> me?
>
> I do understand what they do (at least well enough to use them), but I find
> it confusing that it's called "defType" as a main param, but "type" in a
> LocalParam
When used as the main param, it is still just the default (i.e. it may
be overridden).
For example defType=lucene&q={!func}1
> (and then there's 'qt', often confused with defType/type by newbies, since
> they guess it stands for 'query type', but which should probably actually
> have been called 'requestHandler'/'rh' instead, since that's what it actually
> chooses, no? It gets very confusing).
Yeah, "qt" is very historical... before the QParserPlugin framework,
and before request handlers were used for many other things (including
updates).
-Yonik
http://www.lucidimagination.com
> If it's generally recognized it's confusing and perhaps a somewhat
> inconsistent mental model being implied, I wonder if there'd be any interest
> in renaming these to be more clear, leaving the old ones as aliases/synonyms
> for backwards compatibility (perhaps with a long deprecation period, or
> perhaps existing forever). I know it was very confusing to me to keep track
> of these parameters and what they did for quite a while, and still trips me
> up from time to time.
>
> Jonathan
> ________________________________________
> From: ysee...@gmail.com [ysee...@gmail.com] on behalf of Yonik Seeley
> [yo...@lucidimagination.com]
> Sent: Tuesday, July 19, 2011 9:40 PM
> To: solr-user@lucene.apache.org
> Subject: Re: defType argument weirdness
>
> On Tue, Jul 19, 2011 at 1:25 PM, Naomi Dushay <ndus...@stanford.edu> wrote:
>> Regardless, I thought that defType=dismax&q=*:* is supposed to be
>> equivalent to q={!defType=dismax}*:* and also equivalent to q={!dismax}*:*
>
> Not quite - there is a very subtle distinction.
>
> {!dismax} is short for {!type=dismax}, the type of the actual query,
> and this may not be overridden.
>
> The defType local param is only the default type for sub-queries (as
> opposed to the current query).
> It's useful in conjunction with the "query" or nested query qparser:
> http://lucene.apache.org/solr/api/org/apache/solr/search/NestedQParserPlugin.html
>
> -Yonik
> http://www.lucidimagination.com
>
