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https://issues.apache.org/jira/browse/SOLR-334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12627081#action_12627081
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David Smiley commented on SOLR-334:
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I intend on submitting a patch very soon which I think is related to this.
There are two parts to it,
1. Enhancing the DisjunctionMaxQueryParser to work on all the query variants
such as wildcard, prefix, and fuzzy queries. This was not in Solr already
because DisMax was only used for a very limited syntax that didn't use those
features. In my opinion, this makes a more suitable base parser for general
use because unlike the Lucene/Solr parser, this one supports multiple default
fields whereas other ones (say your <!prefix> one for example, can't do
dismax). The notion of a single default field is antiquated and a technical
under-the-hood detail of Lucene that I think Solr should shield the user from
by on-the-fly using a DisMax when multiple fields are used.
2. Enhancing the DisMax QParser plugin to use a pluggable query string
re-writer (via subclass extension) instead of the logic currently embedded
within it (i.e. the escape nearly everything logic). Additionally, made this
QParser have a notion of a "simple" syntax (the default) or non-simple in which
case some of the logic in this QParser doesn't occur because it's irrelevant
(phrase boosting and min-should-max in particular). As part of my work I
significantly moved the code around to make it clearer and more extensible.
Should I submit a new issue for this or add to this one?
> pluggable query parsers
> -----------------------
>
> Key: SOLR-334
> URL: https://issues.apache.org/jira/browse/SOLR-334
> Project: Solr
> Issue Type: New Feature
> Reporter: Yonik Seeley
> Attachments: angle2curly.patch, qparser.patch, qparser.patch,
> qparser.patch
>
>
> One should be able to optionally specify an alternate query syntax on a
> per-query basis
> http://www.nabble.com/Using-HTTP-Post-for-Queries-tf3039973.html#a8483387
> Many benefits, including avoiding the need to do query parser escaping for
> simple term or prefix queries.
> Possible Examples:
> fq=<!term field="myfield">The Term
> fq=<!prefix field="myfield">The Prefix
> q=<!qp op="AND">a b
> q=<!xml><?xml...> // lucene XML query syntax?
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