[jira] Updated: (SOLR-1553) extended dismax query parser

["Hoss Man (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-1553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hoss Man updated SOLR-1553:
---------------------------

    Attachment: edismax.unescapedcolon.bug.test.patch

On the train this past weekend i started trying to tackle the issue of making support for field based queries (ie: "fieldA:valueB") configurable so that it could be turned on/off for certain fields (or left off completely for back-compat with dismax)

Based on yonik's description of edismax, and my initial reading of the code (particularly the use of clause.field and getFieldName in ExtendedDismaxQParser) i was under the impression that if a "clause" consisting of FOO:BAR was encountered, and FOO was not a known field, that the clause would be treated as a literal, and the colon would be escaped before passing it on to ExtendedSolrQueryParser ... essentially that FOO:BAR and FOO\:BAR would be equivalent if FOO is not the name of a real field according to the IndexSchema.

For reasons I don't fully understand yet, this isn't the case -- as the attached test shows, the queries are parsed differently, and (evidently) FOO:BAR is parsed as an empty query if FOO is not a real field.

Before I try digging into this too much, I wanted to sanity check:
* is this expected? ... was this done intentionally?
* is this desired? ... is this logical default behavior to have if the field isn't defined? should we have tests to assert this before i start adding more config options to change the behavior?

> extended dismax query parser
> ----------------------------
>
>                 Key: SOLR-1553
>                 URL: https://issues.apache.org/jira/browse/SOLR-1553
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Yonik Seeley
>             Fix For: 1.5
>
>         Attachments: edismax.unescapedcolon.bug.test.patch, SOLR-1553.patch, SOLR-1553.pf-refactor.patch
>
>
> An improved user-facing query parser based on dismax

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