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https://issues.apache.org/jira/browse/LUCENE-1823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12784709#action_12784709
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Shai Erera commented on LUCENE-1823:
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I prefer syntax 2 for the opaque terms. If the idea is to plug in another QP 
for that opaque term, then it would be best IMO if that QP received the entire 
string and did what it knows with it. That way, I could pass my::'field1:value 
OR field2:value2 AND (something else)', and 'my' QP would parse the entire 
string.
I don't see how this can be achieved w/ <syntax>:<field>:query, meaning, how 
can I pass a clause which contains two fields ORed or ANDed? IMO, the simpler 
the better and it's easy to explain that whatever comes after the '::' (double 
colons), is passed onto as-is to the assigned QP.

> QueryParser with new features for Lucene 3
> ------------------------------------------
>
>                 Key: LUCENE-1823
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1823
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: QueryParser
>            Reporter: Michael Busch
>            Assignee: Luis Alves
>            Priority: Minor
>             Fix For: 3.1
>
>         Attachments: lucene_1823_any_opaque_precedence_fuzzybug_v2.patch, 
> lucene_1823_foo_bug_08_26_2009.patch
>
>
> I'd like to have a new QueryParser implementation in Lucene 3.1, ideally 
> based on the new QP framework in contrib. It should share as much code as 
> possible with the current StandardQueryParser implementation for easy 
> maintainability.
> Wish list (feel free to extend):
> 1. *Operator precedence*: Support operator precedence for boolean operators
> 2. *Opaque terms*: Ability to plugin an external parser for certain syntax 
> extensions, e.g. XML query terms
> 3. *Improved RangeQuery syntax*: Use more intuitive <=, =, >= instead of [] 
> and {}
> 4. *Support for trierange queries*: See LUCENE-1768
> 5. *Complex phrases*: See LUCENE-1486
> 6. *ANY operator*: E.g. (a b c d) ANY 3 should match if 3 of the 4 terms 
> occur in the same document
> 7. *New syntax for Span queries*: I think the surround parser supports this?
> 8. *Escaped wildcards*: See LUCENE-588

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