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https://issues.apache.org/jira/browse/SQOOP-1988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14273655#comment-14273655
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Qian Xu edited comment on SQOOP-1988 at 1/12/15 2:44 PM:
---------------------------------------------------------
I've found the origin of the method - SQOOP-1378.
{code}
- //TODO: Replace with proper isNull method. Actually the entire content
of the loop should be a parse method
- if (fields[i].equals("NULL") || fields[i].equals("null") ||
fields[i].equals("'null'") || fields[i].isEmpty()) {
{code}
Yes. The isNull method should be handled by FooIDF individually.
was (Author: stanleyxu2005):
I've found the origin of the method - SQOOP-1378.
{bq}
- //TODO: Replace with proper isNull method. Actually the entire content
of the loop should be a parse method
- if (fields[i].equals("NULL") || fields[i].equals("null") ||
fields[i].equals("'null'") || fields[i].isEmpty()) {
{bq}
Yes. The isNull method should be handled by FooIDF individually.
> Sqoop2: isNull handling should be moved to CSVIntermediateDataFormat
> --------------------------------------------------------------------
>
> Key: SQOOP-1988
> URL: https://issues.apache.org/jira/browse/SQOOP-1988
> Project: Sqoop
> Issue Type: Sub-task
> Reporter: Qian Xu
> Assignee: Qian Xu
> Fix For: 2.0.0
>
>
> The {{Matcher.getMatchingData}} method is expected to rearrange record fields
> according to the FROM and TO schema. Currently here is an extra step in the
> implementation, which will reset any {{null}} {{"NULL"}} {{"null"}}
> {{"'null'"}} or {{""}} field to null.
> As there is no comment or documentation about this, I guess it is some
> undocumented special handling. [Here is some
> discussion|https://issues.apache.org/jira/browse/SQOOP-1811?focusedCommentId=14270755&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14270755].
> I think this check should not belong here. I propose to remove it. As the
> method will be called very frequently, the code removal will have performance
> advance. Thanks [~jerrychenhf]
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