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https://issues.apache.org/jira/browse/SQOOP-824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stan Angeloff updated SQOOP-824:
--------------------------------
Description:
When using {{sqoop export}} with {{\-\-update-key}} and {{--columns}} the
options are incompatible. For example, given table {{T1}}
{code}
+------+
| T1 |
+------+
| id |
| name |
| mail |
| cell |
+-------
{code}
When using {{sqoop export [ .. ] --update-key id --update-mode allowinsert
--columns id,name}} the code generation utility creates a Java file which fails
to compile.
This seems to happen because {{ConnManager}} appends all table columns, even
those not mentioned on the command-line (see
{{ConnManager.configureDbOutputColumns}}. As a result, the generated class
contains a {{write}} method which references class members which do not exist.
I could suggest two possible solutions: 1) either make this case an exception
or 2) make the code that appends all remaining table columns optional.
I may be missing something as that code is there for a reason, but I can't see
why?
was:
When using {{sqoop export}} with {{\-\-update-key}} and {{--columns}} the
options are incompatible. For example, given table {{T1}}
{code}
+------+
| T1 |
+------+
| id |
| name |
| mail |
| cell |
+-------
{code}
When using {{sqoop export [ .. ] --update-key id --update-mode allowinsert
--columns id,name}} the code generation utility creates a Java file which fails
to compile.
This seems to happen because {{ConnManager}} appends all table columns, even
those not mentioned on the command-line (see
{{ConnManager.configureDbOutputColumns}}. As a result, the generated class
contains a {{write}} method which references class members which do not exist.
I could suggest two possible solutions: 1) either make this case an exception
or 2) make the code that appends all remaining table columns optional.
I may be missing something as that code is there for a reason, but I can't see
why?
> Sqoop code generation in 'update' export mode incompatible with '--columns'
> option
> ----------------------------------------------------------------------------------
>
> Key: SQOOP-824
> URL: https://issues.apache.org/jira/browse/SQOOP-824
> Project: Sqoop
> Issue Type: Bug
> Components: codegen, tools
> Affects Versions: 1.4.2
> Environment: {code}
> $ uname -a
> Linux precise32 3.2.0-23-generic-pae #36-Ubuntu SMP Tue Apr 10 22:19:09 UTC
> 2012 i686 i686 i386 GNU/Linux
> $ hadoop version
> Hadoop 0.23.4
> Subversion
> https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23.4/hadoop-common-project/hadoop-common
> -r 1392631
> Compiled by evans on Mon Oct 22 13:02:13 CDT 2012
> From source with checksum d5a2b33744f6dff6eecf84786baeb80c
> {code}
> Sqoop downloaded from
> http://www.eu.apache.org/dist/sqoop/1.4.2/sqoop-1.4.2.bin__hadoop-0.23.tar.gz
> Running in Vagrant VM with Ubuntu 12.04 LTS 32-bit.
> Reporter: Stan Angeloff
> Priority: Minor
> Labels: manager
>
> When using {{sqoop export}} with {{\-\-update-key}} and {{--columns}} the
> options are incompatible. For example, given table {{T1}}
> {code}
> +------+
> | T1 |
> +------+
> | id |
> | name |
> | mail |
> | cell |
> +-------
> {code}
> When using {{sqoop export [ .. ] --update-key id --update-mode allowinsert
> --columns id,name}} the code generation utility creates a Java file which
> fails to compile.
> This seems to happen because {{ConnManager}} appends all table columns, even
> those not mentioned on the command-line (see
> {{ConnManager.configureDbOutputColumns}}. As a result, the generated class
> contains a {{write}} method which references class members which do not exist.
> I could suggest two possible solutions: 1) either make this case an exception
> or 2) make the code that appends all remaining table columns optional.
> I may be missing something as that code is there for a reason, but I can't
> see why?
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