[jira] [Updated] (HIVE-25590) Able to create views referencing temporary tables and materialized views

["Krisztian Kasa (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-25590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Krisztian Kasa updated HIVE-25590:
----------------------------------
    Status: Patch Available  (was: Open)

> Able to create views referencing temporary tables and materialized views
> ------------------------------------------------------------------------
>
>                 Key: HIVE-25590
>                 URL: https://issues.apache.org/jira/browse/HIVE-25590
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Planning
>            Reporter: Krisztian Kasa
>            Assignee: Krisztian Kasa
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Creating views/materialized views referencing temporary tables and materialized views are disabled in Hive. However the verification algorithm fails to recognize temporary tables and materialized views in subqueries. 
> The verification also fails when the view definition contains joins because CBO transforms join branches to subqueries.
> Example1:
> {code}
> create temporary table tmp1 (c1 string, c2 string);
> create view tmp1_view as
> select subq.c1 from (select c1, c2 from tmp1) subq;
> {code}
> Example2:
> {code}
> create table t1 (a int) stored as orc tblproperties ('transactional'='true');
> create table t2 (a int) stored as orc tblproperties ('transactional'='true');
> create materialized view mv1 as
> select a from t1 where a = 10;
> create materialized view mv2 as
> select t2.a from mv1
> join t2 on (mv1.a = t2.a);
> {code}



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