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https://issues.apache.org/jira/browse/DERBY-716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12476186
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Christian d'Heureuse commented on DERBY-716:
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Rick, do you mean the array arguments that are used for the OUT parameters,
e.g. "double[] cost"?
You have to look at SQL/Part 13 (SQL/JRT), sections 8.5 (Execution of
array-returning functions) and 8.6 (Java routine signature determination). Not
only at Part 2 (Foundation)) Section 11.50 (SQL-invoked routine)..
> Re-enable VTIs
> --------------
>
> Key: DERBY-716
> URL: https://issues.apache.org/jira/browse/DERBY-716
> Project: Derby
> Issue Type: New Feature
> Components: SQL
> Reporter: Rick Hillegas
>
> Cloudscape used to expose Virtual Table Interfaces, by which any class which
> implemented ResultSet could be included in a query's FROM list. Derby still
> exposes a number of these VTIs as diagnostic tools. However, Derby now
> prevents customers from declaring their own VTIs. The parser raises an error
> if a VTI's package isn't one of the Derby diagnostic packages.
> This is a very powerful feature which customers can use to solve many
> problems. We should discuss the reasons that it was disabled and come up with
> a plan for putting this power back into our customers' hands.
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