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https://issues.apache.org/jira/browse/SOLR-7643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14575548#comment-14575548
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Yonik Seeley commented on SOLR-7643:
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I haven't tried it in this specific scenario, but there is also a field()
function to reference a problematic field name:
example: exists(field('#table_name'))
> Function queries don't support hash "#" in field name
> -----------------------------------------------------
>
> Key: SOLR-7643
> URL: https://issues.apache.org/jira/browse/SOLR-7643
> Project: Solr
> Issue Type: Bug
> Components: SolrJ
> Affects Versions: 4.7.2
> Reporter: DAG Support
> Priority: Minor
>
> I have some index documents with both table_name and #table_name fields.
> If I use a function query with table_name:
> SolrQuery query = new SolrQuery();
> query.add("fl" , "exists(table_name)");
> it works, returning results like this: <doc><bool
> name="exists(table_name)">true</bool></doc>
> However, if I use #table_name:
>
> query.add("fl" , "exists(#table_name)");
> it returns empty documents like this: <doc></doc>
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