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https://issues.apache.org/jira/browse/SQOOP-1621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14182936#comment-14182936
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Qian Xu commented on SQOOP-1621:
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Matcher is used at initialization stage. Once MR job is running, schema is
stored in job configuration. There is no need to do any matching. I hope to
keep matcher and get rid off other {{getSchema}} usages.
> Allow null as a dummy Schema
> ----------------------------
>
> Key: SQOOP-1621
> URL: https://issues.apache.org/jira/browse/SQOOP-1621
> Project: Sqoop
> Issue Type: Improvement
> Reporter: Qian Xu
> Assignee: Veena Basavaraj
> Priority: Minor
>
> The {{getSchema}} of a {{Initializer}} cannot return {{null}} as a dummy
> schema instance, It is not necessary. Caller (i.e. {{Matcher}}) should check
> schema by using {{schema == null || schema.isEmpty()}}.
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