[jira] [Created] (HIVE-20463) Hplsql.g4 - 'from_clause' parses the keyword `JOIN` into 'from_alias_clause' in 'from_table_clause' when parsing 'from_join_clause'

[Hao Zhou (JIRA)]

Hao Zhou created HIVE-20463:
-------------------------------

             Summary: 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
             Fix For: 3.1.0


'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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