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https://issues.apache.org/jira/browse/SOLR-16912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17749093#comment-17749093
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Tom Chopin commented on SOLR-16912:
-----------------------------------
After further testing, it has emerged that this *does* work in techproducts
when the field type is set to text_general:
{code:xml}
<searchComponent name="elevator" class="solr.QueryElevationComponent" >
<str name="queryFieldType">text_general</str><!-- subset matching doesn't
work if this is "string" -->
<str name="config-file">elevate.xml</str>
</searchComponent> {code}
This is not mentioned in the [docs for this
feature|https://solr.apache.org/guide/solr/latest/query-guide/query-elevation-component.html#the-elevate-xml-file],
so when working with entirely lower case strings, it isn't clear if this is a
genuine bug or simply an omission from the reference guide.
> Query Elevation does not work with match=subset option
> ------------------------------------------------------
>
> Key: SOLR-16912
> URL: https://issues.apache.org/jira/browse/SOLR-16912
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 8.3, 8.11.2, 9.3
> Reporter: Tom Chopin
> Priority: Major
>
> When the `match=subset` option is given inside elevate.xml, results are not
> elevated even if their search terms are a subset of the user's query. In
> other words the elevation works the same way irrespective of whether the
> `match=subset` option is given or not.
>
> _Steps to reproduce:_
> 1. Load the techproducts example
> 2. Set the techproducts example's elevate.xml to:
>
> {code:java}
> <elevate>
> <query text="foo bill" match="subset">
> <doc id="IW-02" />
> </query>
> </elevate>{code}
>
> 3. The folllowing query should trigger "IW-02" to appear in the results, but
> it does not:
> [http://localhost:8983/solr/techproducts/elevate?q=foo%20bill%20bar|http://localhost:8983/solr/techproducts/elevate?q=foo%20bill]
> However the elevation can be seen to be working with the query:
> [http://localhost:8983/solr/techproducts/elevate?q=foo%20bill]
>
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