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https://issues.apache.org/jira/browse/SOLR-8518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15116584#comment-15116584
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Joel Bernstein commented on SOLR-8518:
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Using the approach where we look at the column types of the first real Tuple
means that numerics will always be either a long or a double. From a practical
standpoint this approach is very fast and it will work fine with visualization
clients. As the implementation matures we can look at ways to cache the real
types in the SQLHandler and return it with the meta-data tuple.
> Implement ResultSetMetaDataImpl getColumnType and getColumnTypeName
> -------------------------------------------------------------------
>
> Key: SOLR-8518
> URL: https://issues.apache.org/jira/browse/SOLR-8518
> Project: Solr
> Issue Type: Sub-task
> Components: SolrJ
> Affects Versions: Trunk
> Reporter: Kevin Risden
> Attachments: SOLR-8518.patch
>
>
> DBVisualizer uses getColumnType and getColumnTypeName to determine which
> ResultSetImpl.get* method to use when displaying the data otherwise it falls
> back to ResultSetImpl.getObject.
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