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Posted to issues@spark.apache.org by "Yuming Wang (JIRA)" <ji...@apache.org> on 2019/07/13 09:31:00 UTC
[jira] [Commented] (SPARK-20856) support statement using nested
joins
[ https://issues.apache.org/jira/browse/SPARK-20856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16884332#comment-16884332 ]
Yuming Wang commented on SPARK-20856:
-------------------------------------
Could we reopen it because I encounter this case when porting [join.sql#L1170-L1243|https://github.com/postgres/postgres/blob/REL_12_BETA2/src/test/regress/sql/join.sql#L1170-L1243]?
> support statement using nested joins
> ------------------------------------
>
> Key: SPARK-20856
> URL: https://issues.apache.org/jira/browse/SPARK-20856
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.1.0
> Reporter: N Campbell
> Priority: Major
> Labels: bulk-closed
>
> While DB2, ORACLE etc support a join expressed as follows, SPARK SQL does not.
> Not supported
> select * from
> cert.tsint tsint inner join cert.tint tint inner join cert.tbint tbint
> on tbint.rnum = tint.rnum
> on tint.rnum = tsint.rnum
> versus written as shown
> select * from
> cert.tsint tsint inner join cert.tint tint on tsint.rnum = tint.rnum inner join cert.tbint tbint on tint.rnum = tbint.rnum
>
> ERROR_STATE, SQL state: org.apache.spark.sql.catalyst.parser.ParseException:
> extraneous input 'on' expecting {<EOF>, ',', '.', '[', 'WHERE', 'GROUP', 'ORDER', 'HAVING', 'LIMIT', 'OR', 'AND', 'IN', NOT, 'BETWEEN', 'LIKE', RLIKE, 'IS', 'JOIN', 'CROSS', 'INNER', 'LEFT', 'RIGHT', 'FULL', 'NATURAL', 'LATERAL', 'WINDOW', 'UNION', 'EXCEPT', 'MINUS', 'INTERSECT', EQ, '<=>', '<>', '!=', '<', LTE, '>', GTE, '+', '-', '*', '/', '%', 'DIV', '&', '|', '^', 'SORT', 'CLUSTER', 'DISTRIBUTE', 'ANTI'}(line 4, pos 5)
> == SQL ==
> select * from
> cert.tsint tsint inner join cert.tint tint inner join cert.tbint tbint
> on tbint.rnum = tint.rnum
> on tint.rnum = tsint.rnum
> -----^^^
> , Query: select * from
> cert.tsint tsint inner join cert.tint tint inner join cert.tbint tbint
> on tbint.rnum = tint.rnum
> on tint.rnum = tsint.rnum.
> SQLState: HY000
> ErrorCode: 500051
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