[jira] [Created] (SOLR-5882) Support scoreMode parameter for BlockJoinParentQParser

["Andrey Kudryavtsev (JIRA)" <ji...@apache.org>]

Andrey Kudryavtsev created SOLR-5882:
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             Summary: Support scoreMode parameter for BlockJoinParentQParser
                 Key: SOLR-5882
                 URL: https://issues.apache.org/jira/browse/SOLR-5882
             Project: Solr
          Issue Type: New Feature
    Affects Versions: 4.8
            Reporter: Andrey Kudryavtsev


Today BlockJoinParentQParser creates queries with hardcoded _scoring mode_ "None": 
{code:borderStyle=solid}
  protected Query createQuery(Query parentList, Query query) {
    return new ToParentBlockJoinQuery(query, getFilter(parentList), ScoreMode.None);
  }
{code} 

Analogically BlockJoinChildQParser creates queries with hardcoded _doScores_ "false":

{code:borderStyle=solid}
  protected Query createQuery(Query parentListQuery, Query query) {
    return new ToChildBlockJoinQuery(query, getFilter(parentListQuery), false);
  }
{code}
I propose to have ability to configure this scoring options via query syntax.

Syntax for parent queries can be like:

{code:borderStyle=solid}
{!parent which=type:parent scoreMode=None|Avg|Max|Total}
{code} 

For child query:

{code:borderStyle=solid}
{!child of=type:parent doScores=true|false}
{code} 





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