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From "Xu Mingmin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (BEAM-2282) logic in function accept in BeamSqlExpression
Date Tue, 13 Jun 2017 01:02:00 GMT

     [ https://issues.apache.org/jira/browse/BEAM-2282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xu Mingmin updated BEAM-2282:
-----------------------------
    Labels: dsl_sql_merge  (was: )

> logic in function accept in BeamSqlExpression
> ---------------------------------------------
>
>                 Key: BEAM-2282
>                 URL: https://issues.apache.org/jira/browse/BEAM-2282
>             Project: Beam
>          Issue Type: Improvement
>          Components: dsl-sql
>            Reporter: Xu Mingmin
>              Labels: dsl_sql_merge
>
> Method {{accept}} is used to make sure the SQL operator is supported in Beam SQL. IMO
it should only check the case that some scenarios are not supported in BeamSQL even it's valid
in Calcite SQL grammar.
> It's not necessary to my understand to validate SQL grammar as that's done already in
the parsing phase.  



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