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https://issues.apache.org/jira/browse/SPARK-28228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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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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