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Posted to issues@hive.apache.org by "Soumyakanti Das (Jira)" <ji...@apache.org> on 2023/09/29 18:05:00 UTC

[jira] [Updated] (HIVE-27761) Compilation of nested CTEs throws SemanticException

     [ https://issues.apache.org/jira/browse/HIVE-27761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Soumyakanti Das updated HIVE-27761:
-----------------------------------
    Summary: Compilation of nested CTEs throws SemanticException  (was: SemanticException for Nested CTEs)

> Compilation of nested CTEs throws SemanticException
> ---------------------------------------------------
>
>                 Key: HIVE-27761
>                 URL: https://issues.apache.org/jira/browse/HIVE-27761
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>            Reporter: Soumyakanti Das
>            Assignee: Soumyakanti Das
>            Priority: Major
>
> Currently, nested CTEs are not supported in Hive. Simple repro:
> {code:java}
> with
>     test1 as (
>         with t1 as (select 1)
>         select 1
>     )
> select * from test1;
>  org.apache.hadoop.hive.ql.parse.SemanticException: Line 5:13 Ambiguous table alias 't1'
>     at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.processCTE(SemanticAnalyzer.java:1310)
>     at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.doPhase1(SemanticAnalyzer.java:1980) {code}



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