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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2019/07/02 06:54:00 UTC
[jira] [Assigned] (SPARK-28228) Better support for WITH clause
[ https://issues.apache.org/jira/browse/SPARK-28228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-28228:
------------------------------------
Assignee: (was: Apache Spark)
> Better support for WITH clause
> ------------------------------
>
> Key: SPARK-28228
> URL: https://issues.apache.org/jira/browse/SPARK-28228
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Peter Toth
> Priority: Major
>
> PostgreSQL handles nested WITHs in a different way then Spark does currently. These queries retunes 1 in Spark while they return 2 in PostgreSQL:
> {noformat}
> WITH
> t AS (SELECT 1),
> t2 AS (
> WITH t AS (SELECT 2)
> SELECT * FROM t
> )
> SELECT * FROM t2
> {noformat}
> {noformat}
> WITH t AS (SELECT 1)
> SELECT (
> WITH t AS (SELECT 2)
> SELECT * FROM t
> )
> {noformat}
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