[
https://issues.apache.org/jira/browse/DERBY-4789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lily Wei updated DERBY-4789:
----------------------------
Attachment: DERBY-4789-QuestionTest.diff
Hi Rick:
Thank you so much for looking at my question.
When my target table was empty, I do get bulk insert like we both expected.
It is when I add the test to TableFunctionTest.java like the file I attach, I
am getting false instead of true for the same query which indicate it is not
using bulk insert. Do we have to clean the table for the test I am inserting to
TableFunctionTest.java?
> 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
>
>
> 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.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
