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https://issues.apache.org/jira/browse/SQOOP-1701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14204428#comment-14204428
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Daisuke Kobayashi commented on SQOOP-1701:
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See also
http://dev.mysql.com/doc/connector-j/en/connector-j-reference-implementation-notes.html
> MySQL fetch-size behavior should be documented explicitly
> ---------------------------------------------------------
>
> Key: SQOOP-1701
> URL: https://issues.apache.org/jira/browse/SQOOP-1701
> Project: Sqoop
> Issue Type: Improvement
> Components: docs
> Affects Versions: 1.4.5
> Reporter: Daisuke Kobayashi
>
> The behavior of {{--fetch-size}} has been changed in SQOOP-1400 and reverted
> in SQOOP-1617 as follows:
> - Prior to SQOOP-1400: row-by-row is the default
> - With SQOOP-1400: load everything is the default
> - SQOOP-1617 and higher: row-by-row becomes the default again
> The behavior of the option with MySQL is a bit different from the other
> drivers because MySQL JDBC driver can only handle row-by-row or
> load-everything. So that it should be documented in the area of the
> limitation.
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