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https://issues.apache.org/jira/browse/ARROW-18294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17631101#comment-17631101
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David Li commented on ARROW-18294:
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Thanks for reporting. Happy to see that you're giving Flight SQL a try, any
feedback there would be appreciated.
I'll see if I can get this replicated and fixed quickly. We're considering a
10.0.1 release, so it would be nice to include a fix for this.
> [Java][FlightRPC] 'Signature not found' calling `executeUpdate` on FlightSQL
> prepared statement
> -----------------------------------------------------------------------------------------------
>
> Key: ARROW-18294
> URL: https://issues.apache.org/jira/browse/ARROW-18294
> Project: Apache Arrow
> Issue Type: Bug
> Components: FlightRPC, Java
> Affects Versions: 10.0.0
> Reporter: James Henderson
> Assignee: David Li
> Priority: Major
>
> Hey folks :)
> I'm hitting the 'signature not found' NPE precondition in
> {{ArrowFlightMetaImpl.execute}} when I prepare a DML statement and call
> {{executeUpdate}} (the prepare step seems to work fine):
> {code}
> Preconditions.java: 801
> cfjd.org.apache.arrow.util.Preconditions/checkNotNull
> ArrowFlightMetaImpl.java: 86
> org.apache.arrow.driver.jdbc.ArrowFlightMetaImpl/execute
> ArrowFlightMetaImpl.java: 96
> org.apache.arrow.driver.jdbc.ArrowFlightMetaImpl/execute
> AvaticaConnection.java: 548
> cfjd.org.apache.calcite.avatica.AvaticaConnection/executeQueryInternal
> AvaticaPreparedStatement.java: 152
> cfjd.org.apache.calcite.avatica.AvaticaPreparedStatement/executeLargeUpdate
> AvaticaPreparedStatement.java: 147
> cfjd.org.apache.calcite.avatica.AvaticaPreparedStatement/executeUpdate
> {code}
> It seems that this will always be null in this situation because
> {{AvaticaPreparedStatement.executeLargeUpdate}} calls
> {{executeQueryInternal}} with a null signature, regardless of the signature
> in the prepared statement itself (which is non-null)?
> Otherwise, enjoying playing with FlightSQL so far - thanks!
> James
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