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https://issues.apache.org/jira/browse/NIFI-8046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt Burgess updated NIFI-8046:
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Status: Patch Available (was: In Progress)
> ResultSetRecordSet throws exception on DB2
> ------------------------------------------
>
> Key: NIFI-8046
> URL: https://issues.apache.org/jira/browse/NIFI-8046
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Reporter: Matt Burgess
> Assignee: Matt Burgess
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Consumers of ResultSetRecordSet (such as QueryDatabaseTableRecord) can end up
> with an exception being thrown when processing the results. This is due to
> DB2 behavior that closes a ResultSet when the last row has been read, meaning
> next() can return true then isClosed() can return true.
> This was handled in general for the QueryDatabaseTable processors via
> NIFI-5303 (even though only QDT itself existed at the time, not
> QueryDatabaseTableRecord). However QueryDatabaseTableRecord uses
> ResultSetRecordSet, which calls ResultSet.next() before creating a schema
> from the ResultSet. On DB2 (if the result set is empty, e.g.) this results in
> an exception being thrown when ResultSet.getMetaData() is called from
> createSchema().
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