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https://issues.apache.org/jira/browse/ARROW-18296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17631205#comment-17631205
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David Li commented on ARROW-18296:
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D'oh, that's an obvious one. Thanks
> [Java][FlightRPC] FlightSQL JDBC precludes other JDBC drivers on the same JVM
> -----------------------------------------------------------------------------
>
> Key: ARROW-18296
> URL: https://issues.apache.org/jira/browse/ARROW-18296
> Project: Apache Arrow
> Issue Type: Bug
> Components: FlightRPC, Java
> Affects Versions: 10.0.0
> Reporter: James Henderson
> Assignee: David Li
> Priority: Major
>
> The contract of `java.sql.Driver/connect` says that the driver should return
> null if it realises it's the wrong kind of driver to handle the connection -
> unfortunately the override in `ArrowFlightJdbcDriver` throws an exception if
> the scheme isn't {{arrow-flight}} or {{arrow-flight-sql}}. So, if I'm trying
> to connect to (e.g.) postgres and the Arrow Flight driver happens to be first
> in the java.sql.DriverManager's list, I'll get a {{URL Scheme must be
> 'arrow-flight'.}} error.
> We could consider a similar pattern to Avatica's
> {{UnregisteredDriver/connect}}, which checks `{{acceptsURL}}` first and
> returns null if appropriate?
> (Separately, I suspect that error message should say {{arrow-flight-sql}},
> given {{arrow-flight}} seems to be deprecated?)
> Cheers,
> James
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