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Posted to issues@hive.apache.org by "Zhizhen Hou (Jira)" <ji...@apache.org> on 2022/11/28 02:49:00 UTC

[jira] [Updated] (HIVE-26779) UNION ALL throws SemanticException when trying to remove partition predicates: fail to find child from parent

     [ https://issues.apache.org/jira/browse/HIVE-26779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhizhen Hou updated HIVE-26779:
-------------------------------
    Summary: UNION ALL throws SemanticException when trying to remove partition predicates: fail to find child from parent  (was: UNION ALL throws SemanticException Exception when trying to remove partition predicates: fail to find child from parent)

> UNION ALL throws SemanticException when trying to remove partition predicates: fail to find child from parent
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-26779
>                 URL: https://issues.apache.org/jira/browse/HIVE-26779
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 4.0.0-alpha-2
>            Reporter: Zhizhen Hou
>            Priority: Major
>
> {quote}Reproduce sql:
> drop table if exists tez_test_t1;
> create table tez_test_t1(md_exper string);
> insert into tez_test_t1 values('tez_test_t1-md_expr');
> drop table if exists tez_test_t5;
> create table tez_test_t5(md_exper string, did string);
> insert into tez_test_t5 values('tez_test_t5-md_expr','tez_test_t5-did');
> drop table if exists tez_test_t2;
> create table tez_test_t2(did string);
> insert into tez_test_t2 values('tez_test_t2-did');
> SELECT  md_exper,null as ads_h5_gap , null as first_login_did, null as inclick_did
>     FROM tez_test_t1 
> UNION ALL 
> SELECT md_exper, ads_h5_gap , 
>    NULL AS first_login_did,did AS  inclick_did
>    FROM tez_test_t5  
>    LATERAL VIEW explode(split('0,6', ',')) gaps AS ads_h5_gap 
> UNION ALL 
>    SELECT '' AS md_exper,'0,6' as ads_h5_gap ,  
>    did AS first_login_did, NULL AS inclick_did
>    FROM tez_test_t2 
>    GROUP BY did;
> {quote}
>  
> StackTrace
> 2022-11-27T09:31:06,801 ERROR [21d35a7f-9625-46ae-9c3d-13ca925f55cb main]: ql.Driver (:()) - FAILED: SemanticException Exception when trying to remove partition predicates: fail to find child from parent
> org.apache.hadoop.hive.ql.parse.SemanticException: Exception when trying to remove partition predicates: fail to find child from parent
>         at org.apache.hadoop.hive.ql.exec.Operator.removeChildAndAdoptItsChildren(Operator.java:859)
>         at org.apache.hadoop.hive.ql.parse.GenTezUtils.removeUnionOperators(GenTezUtils.java:348)
>         at org.apache.hadoop.hive.ql.parse.TezCompiler.generateTaskTree(TezCompiler.java:573)
>         at org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:241)
>         at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:12333)
>         at org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:330)
>         at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:286)



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