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https://issues.apache.org/jira/browse/HIVE-15976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16509268#comment-16509268
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Zoltan Haindrich commented on HIVE-15976:
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I see that you have followed the "practice" but I can't convince myself why
would it be a good idea to add "current_schema" things to IdentifierParser...
It seems to me that CURRENT_DATE and CURRENT_TIMESTAMP are there to make it
possible to enable the parser to handle its result the same as parsing a date
string...
I think this patch would be fine without the changes to IdentifiersParser/Lexer
changes...
> Support CURRENT_CATALOG and CURRENT_SCHEMA
> ------------------------------------------
>
> Key: HIVE-15976
> URL: https://issues.apache.org/jira/browse/HIVE-15976
> Project: Hive
> Issue Type: Sub-task
> Components: SQL
> Reporter: Carter Shanklin
> Assignee: Laszlo Bodor
> Priority: Major
> Attachments: HIVE-15976.01.patch, HIVE-15976.02.patch,
> HIVE-15976.03.patch
>
>
> Support these keywords for querying the current catalog and schema. SQL
> reference: section 6.4
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