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https://issues.apache.org/jira/browse/SOLR-14782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17189098#comment-17189098
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Bruno Roustant edited comment on SOLR-14782 at 9/2/20, 9:17 AM:
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[~smk] you should add a CharFilter to unescape for query elevation. Instead of
using lowercase for the queryFieldType you could use unescapelowercase with the
following definition:
{code:java}
<fieldType name="unescapelowercase" class="solr.TextField"
positionIncrementGap="100">
<analyzer>
<charFilter class="solr.PatternReplaceCharFilterFactory" pattern="\\(.)"
replacement="$1"/>
<tokenizer class="solr.KeywordTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>{code}
[~dsmiley] this regex pattern replacement CharFilter is not easy. Should we
have a new simpler and equivalent UnescapeCharFilterFactory? In any case I
think it would be nice to add a paragraph to explain that in the
QueryElevationComponent doc.
was (Author: broustant):
[~smk] you should add a CharFilter to unescape for query elevation. Instead of
using lowercase for the queryFieldType you could use unescapelowercase with the
following definition:
{code:java}
<fieldType name="unescapelowercase" class="solr.TextField"
positionIncrementGap="100">
<analyzer>
<charFilter class="solr.PatternReplaceCharFilterFactory" pattern="\\\\(.)"
replacement="$1"/>
<tokenizer class="solr.KeywordTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>{code}
[~dsmiley] this regex pattern replacement CharFilter is not easy. Should we
have a new simpler and equivalent UnescapeCharFilterFactory? In any case I
think it would be nice to add a paragraph to explain that in the
QueryElevationComponent doc.
> QueryElevationComponent does not handle escaped query terms
> -----------------------------------------------------------
>
> Key: SOLR-14782
> URL: https://issues.apache.org/jira/browse/SOLR-14782
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: query parsers
> Affects Versions: 8.2
> Reporter: Thomas Schmiereck
> Assignee: Bruno Roustant
> Priority: Major
> Labels: elevation
> Attachments: SOLR-14782.patch
>
>
> h1. Description
> if the elevate.xml contains a entry with spaces:
> <{color:#0033b3}query {color}{color:#174ad4}text{color}{color:#067d17}="aaa
> bbb"{color}><{color:#0033b3}doc
> {color}{color:#174ad4}id{color}{color:#067d17}="core2docId2"
> {color}/></{color:#0033b3}query{color}>
> and the Solr query term is escaped:
> {{?q=aaa\+bbb}}
> the Solr search itself handels this correctly, but the elevate component
> "QueryElevationComponent" does not unescape the query term bevor the lookup
> in the elevate.xml.
> Result is that the entry is not elevated.
> A also valid (not escaped) query like:
> {{?q=aaa%20bbb}}
> is working.
> h1. Technical Notes
> see:
> org.apache.solr.handler.component.QueryElevationComponent.MapElevationProvider#getElevationForQuery
>
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