Dennis Du Krøger created METAMODEL-1093:
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Summary: 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
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)
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