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https://issues.apache.org/jira/browse/SOLR-2368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13198448#comment-13198448
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Jan Høydahl commented on SOLR-2368:
-----------------------------------
Regarding old DisMax, do all bugs being detected in eDismax also get fixed in
DisMax if applicable? I'm not sure..
If/when eDismax can be configured to fill the original role of DisMax, why
should we maintain the old one?
And if edismax was the one written first, it would have the name "dismax", so
why could it not get that name the day it supersedes dismax in features and
usage?
It's a bit analogue to IntField/TrieIntField - naming hints on implementation
details to distinguish from other implementations, but if TrieIntField was
developed in one go and not committed incrementally, it could simply have
replaced IntField. eDisMax is @lucene.experimental and when it is up to par
with dismax all over, it should in my opinion take over its name with a fat
notice in CHANGES.TXT. For a few versions edismax could be a valid alias too,
and the old dismax could be kept around as "legacydismax" for the
conservative/lazy. How would you like to have to relate to
EnhancedCsvUpdateRequestHandler at /solr/update/ecsv just because the original
is less complex? :-)
Created SOLR-3086 to let users lobotomize edismax so it will only accept the
query syntaxes they choose.
> Improve extended dismax (edismax) parser
> ----------------------------------------
>
> Key: SOLR-2368
> URL: https://issues.apache.org/jira/browse/SOLR-2368
> Project: Solr
> Issue Type: Improvement
> Components: search
> Reporter: Yonik Seeley
> Labels: QueryParser
>
> This is a "mother" issue to track further improvements for eDismax parser.
> The goal is to be able to deprecate and remove the old dismax once edismax
> satisfies all usecases of dismax.
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