[
https://issues.apache.org/jira/browse/IMPALA-4973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Taras Bobrovytsky reassigned IMPALA-4973:
-----------------------------------------
Assignee: (was: Taras Bobrovytsky)
> Convert UnionStmt class into to SetOperationStmt
> ------------------------------------------------
>
> Key: IMPALA-4973
> URL: https://issues.apache.org/jira/browse/IMPALA-4973
> Project: IMPALA
> Issue Type: Sub-task
> Components: Frontend
> Affects Versions: Impala 2.9.0
> Reporter: Taras Bobrovytsky
> Priority: Major
>
> SetOperationStmt should be a new class that will be used to represent UNION
> DISTINCT and UNION ALL operators. A SetOperationStmt should transformed into
> a QueryStmt during the analysis rewrite phase (StmtRewriter). The resulting
> query should capture DISTINCT by an appropriate placement of DISTINCT in the
> Select list.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org
For additional commands, e-mail: issues-all-h...@impala.apache.org
