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From "Hao Zhou (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-20463) Hplsql.g4 - 'from_clause' parses the keyword `JOIN` into 'from_alias_clause' in 'from_table_clause' when parsing 'from_join_clause'
Date Mon, 03 Sep 2018 02:35:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-20463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16601744#comment-16601744
] 

Hao Zhou commented on HIVE-20463:
---------------------------------

Sorry, since I am a front-end engineer, I am not able to handle the errors mentioned above,
so I ask you to assign an engineer to deal with this problem.

I will turn off the corresponding pull request, but this problem exists.

Thank you

> 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, 0002-HIVE-20463-Test-Modify-select-test-case.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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