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https://issues.apache.org/jira/browse/HIVE-20463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16592638#comment-16592638
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ASF GitHub Bot commented on HIVE-20463:
---------------------------------------
GitHub user lleohao opened a pull request:
https://github.com/apache/hive/pull/422
HIVE-20463: fix parse `from_join_clause` error
Fix https://issues.apache.org/jira/browse/HIVE-20463
Signed-off-by: Hao Zhou [email protected]
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/lleohao/hive master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/hive/pull/422.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #422
----
commit a1634bac6b65b8be5d2d4090222ec2a8aae87bf6
Author: lleohao <lleohao@...>
Date: 2018-08-25T16:04:31Z
HIVE-20463: fix parse `from_join_clause` error
----
> Hplsql.g4 - 'from_clause' parses the keyword `JOIN` into 'from_alias_clause'
> in 'from_table_clause' when parsing 'from_join_clause'
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-20463
> URL: https://issues.apache.org/jira/browse/HIVE-20463
> Project: Hive
> Issue Type: Bug
> Components: CLI
> Affects Versions: 3.1.0
> Reporter: Hao Zhou
> Assignee: Hao Zhou
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.1.0
>
> Attachments: 0001-HIVE-20463-fix-parse-from_join_clause-error.patch
>
>
> 'from_clause' parses the keyword `JOIN` into 'from_alias_clause' in
> 'from_table_clause' when parsing 'from_join_clause'.
>
> example:
> Parse sql {{SELECT `k1, v1, k2, v2 FROM a JOIN b ON k1 = k2;`.}}
> Now grammar will parse `{{JOIN`}} as a `{{from_alias_clause`}}, but it should
> be
> a `{{from_join_clause`}};
>
>
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