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Date: Thu, 15 Nov 2012 21:41:13 +0000 (UTC)
From: "Yonik Seeley (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Assigned] (SOLR-4081)
 QueryParsing.toString(Query,IndexSchema) does not properly handle
 WrappedQuery
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     [ https://issues.apache.org/jira/browse/SOLR-4081?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yonik Seeley reassigned SOLR-4081:
----------------------------------

    Assignee: Yonik Seeley
    
> QueryParsing.toString(Query,IndexSchema) does not properly handle WrappedQuery
> ------------------------------------------------------------------------------
>
>                 Key: SOLR-4081
>                 URL: https://issues.apache.org/jira/browse/SOLR-4081
>             Project: Solr
>          Issue Type: Bug
>          Components: query parsers
>    Affects Versions: 4.0
>            Reporter: Eirik Lygre
>            Assignee: Yonik Seeley
>            Priority: Minor
>
> QueryParsing.toString() is a method that uses knowledge of various Query implementations to properly render a query string. For example, using toString with a BooleanQuery might return a string like this:
> {{owner_id:18935 (acl_id:9451 acl_id:11634 acl_id:15678 acl_id:16791)}}
> When using localParams such as "{!cache=false cost=0}", the query turns into a WrappedQuery wrapping a BooleanQuery. This is not understood by QueryParsing.toString(), which calls WrappedQuery.toString() instead, returning a string like this:
> {{\{!cache=false cost=0}owner_id:w (acl_id:` acl_id:Ik acl_id:Zr acl_id:z> acl_id:\)}}
> The probable (untested) solution will be to include a couple of lines at the top of toString(), as shown below. A further optimization would be to create "void WrappedQuery.getOptions(Appendable out)", to avoid creating a StringBuilder inside WrappedQuery.getOptions().
> {code}
> public static void toString(Query query, IndexSchema schema, Appendable out, int flags) throws IOException {
>   boolean writeBoost = true;
>   // Begin new code to handle WrappedQuery
>   if (query instanceof WrappedQuery) {
>     WrappedQuery q = (WrappedQuery)query;
>     out.append (q.getOptions());
>     query = q.getWrappedQuery();
>   }
>   // End new code to handle WrappedQuery
>   if (query instanceof TermQuery) {
>     ...
> {code}

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