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From "Adrien Grand (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-8882) Add State To QueryVisitor
Date Mon, 01 Jul 2019 11:56:00 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-8882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16876132#comment-16876132
] 

Adrien Grand commented on LUCENE-8882:
--------------------------------------

Can you elaborate more on how this would help replace IndexOrDocValues?

> Add State To QueryVisitor
> -------------------------
>
>                 Key: LUCENE-8882
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8882
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Atri Sharma
>            Priority: Major
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> QueryVisitor has no state passed in either up or down recursion. This limits the width
of decisions that can be taken by visitation of QueryVisitor. For eg, for LUCENE-8881, we
need a way to specify is the visitor is a rewriter visitor.
>  
> This Jira proposes adding a property bag model to QueryVisitor, which can then be referred
to by the Query instance being visited by QueryVisitor.



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