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https://issues.apache.org/jira/browse/METAMODEL-1093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15314757#comment-15314757
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ASF GitHub Bot commented on METAMODEL-1093:
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Github user LosD commented on the issue:
https://github.com/apache/metamodel/pull/107
I would love to, but I'm almost sure it won't trigger the error. I tried
making a test that almost copied exactly what the DataCleaner table lookup
analyzer does, but still didn't seem to trigger the issue. Didn't do it inside
the integration setup though, I'll see if that makes a difference.
> JDBC CompiledQuery ResultSets not closed properly
> -------------------------------------------------
>
> Key: METAMODEL-1093
> URL: https://issues.apache.org/jira/browse/METAMODEL-1093
> Project: Apache MetaModel
> Issue Type: Bug
> Reporter: Dennis Du Krøger
> Assignee: Dennis Du Krøger
>
> When running compiled queries, the JdbcResultSet only returns the lease on
> the query, it doesn't close the result set.
> For most JDBC drivers, that isn't really an issue, as they can easily handle
> connections with multiple open result sets. However, the MySQL JDBC sometimes
> uses streaming result sets (to save memory), of which only one can be open at
> a time.
> I almost have a PR ready, but I'm having a hard time making any kind of test
> that makes sense: When I make a simple test, the driver seems to close the
> resultset automatically right after execution, but that is not what we see in
> DataCleaner, and I'm not really sure why.
> I think I'll post it anyway, as it is rather large (I also tried to avoid
> repeats by making sure that the JdbcDataContext only handles the connection,
> and the rest is handled by try-with-resources as far as possible), so an
> early review would be nice.
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