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https://issues.apache.org/jira/browse/SOLR-2972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13170439#comment-13170439
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Yonik Seeley commented on SOLR-2972:
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bq. But according to Hoss, just replacing the hardcoded "lucene" with null
should allow to use the first syntax.
+1
There was never an intent to prevent defType from working.
> JoinQParserPlugin uses a hardcoded lucene QParser
> -------------------------------------------------
>
> Key: SOLR-2972
> URL: https://issues.apache.org/jira/browse/SOLR-2972
> Project: Solr
> Issue Type: Bug
> Components: SearchComponents - other
> Affects Versions: 4.0
> Reporter: Pascal Dimassimo
> Priority: Minor
>
> In JoinQParserPlugin.java, the method createParser builds a QParser like this:
> QParser fromQueryParser = subQuery(v, "lucene");
> This prevent us from using this syntax to select a query parser for the join
> operation:
> qf=text name
> q={!join from=manu_id_s to=id defType=dismax}ipod
> As a workaround, we can use var dereferencing:
> qf=text name
> q={!join from=manu_id_s to=id v=$qq}
> qq={!dismax}ipod
> But according to Hoss, just replacing the hardcoded "lucene" with null should
> allow to use the first syntax.
> See this thread:
> http://search-lucene.com/m/y2GA92nZr211&subj=Re+Solr+Join+with+Dismax
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