[jira] [Commented] (SOLR-13289) Support for BlockMax WAND

["Munendra S N (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-13289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16961295#comment-16961295 ] 

Munendra S N commented on SOLR-13289:
-------------------------------------

 [^SOLR-13289.patch] 
[~ichattopadhyaya]
As discussed started working on this.
* Shared patch is rebased with latest master
* any negative values for {{minExactHits}} would be treated as {{Integer.MAX_VALUE}}
* Add initial support in distrib mode but this has some catch
** as same minExactHits is shared across shard. so, actual minExactHits is shardCount*minExactHits
** {{maxScore}} won't be returned for non-max_value minExactHits. maxScore could be returned as {{NaN}}. I have raised  SOLR-13839 for this NaN

This feature currently doesn't work in case of faceting(this is expected), grouping.
Next, need to add test cases for all components


> Support for BlockMax WAND
> -------------------------
>
>                 Key: SOLR-13289
>                 URL: https://issues.apache.org/jira/browse/SOLR-13289
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Ishan Chattopadhyaya
>            Assignee: Ishan Chattopadhyaya
>            Priority: Major
>         Attachments: SOLR-13289.patch, SOLR-13289.patch
>
>
> LUCENE-8135 introduced BlockMax WAND as a major speed improvement. Need to expose this via Solr. When enabled, the numFound returned will not be exact.



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