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https://issues.apache.org/jira/browse/DERBY-4789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lily Wei updated DERBY-4789:
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Attachment: TableFunctionTest.java
I do add more tests for bulk insert. My hope is to add more tests. Please
review it. If it is okay with everybody. I would like to check it in to trunk
branch. Thanks!
> Always apply the bulk-insert optimization when inserting from a table
> function.
> -------------------------------------------------------------------------------
>
> Key: DERBY-4789
> URL: https://issues.apache.org/jira/browse/DERBY-4789
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Reporter: Rick Hillegas
> Attachments: derby-4789-01-ab-alwaysForTableFunctions.diff,
> DERBY-4789-QuestionTest.diff, DERBY-4789-QuestionTest2.diff,
> TableFunctionTest.java
>
>
> Inserting from a table function is a lot like importing from a file:
> 1) Derby has limited visibility into the size of the external data source.
> 2) The user is often trying to import a large data set.
> The import procedures assume that Derby should always apply the bulk-insert
> optimization when importing from a file. The same assumption seems reasonable
> whenever a table function appears in the source stream of an INSERT.
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