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https://issues.apache.org/jira/browse/HIVE-2909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247891#comment-13247891
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Carl Steinbach commented on HIVE-2909:
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MySQL has a SHOW COLUMNS command:
http://dev.mysql.com/doc/refman/5.0/en/show-columns.html
Seems like we should follow convention and try to duplicate that instead of
inventing our own behavior. Also, I think returning each column name in a
separate row is much more convenient (and consistent) for clients than forcing
them to tokenize the names by splitting on ','
> SHOW COLUMNS table_name; to provide a comma-delimited list of columns.
> ----------------------------------------------------------------------
>
> Key: HIVE-2909
> URL: https://issues.apache.org/jira/browse/HIVE-2909
> Project: Hive
> Issue Type: New Feature
> Reporter: Adam Kramer
> Assignee: Dikang Gu
> Priority: Minor
> Attachments: HIVE-2909.D2595.1.patch, HIVE-2909.D2595.2.patch,
> HIVE-2909.D2595.3.patch, HIVE-2909.D2595.4.patch
>
>
> Due to the way that SELECT * and partitioning works, it is frequently
> obnoxious to insert data into tables of the same schema.
> This could be fixed in a number of ways, all murky; this feature request
> reduces the obnoxicity of the current situation.
> SHOW COLUMNS foo;
> OK
> bar, baz, tball, ds
> ...then I could just copy the first three and not the last.
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