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Date: Tue, 18 Mar 2014 21:16:54 +0000 (UTC)
From: "Harish Butani (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
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Subject: [jira] [Updated] (HIVE-4293) Predicates following UDTF operator are
 removed by PPD
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     [ https://issues.apache.org/jira/browse/HIVE-4293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Harish Butani updated HIVE-4293:
--------------------------------

    Attachment: HIVE-4293.13.patch

> Predicates following UDTF operator are removed by PPD
> -----------------------------------------------------
>
>                 Key: HIVE-4293
>                 URL: https://issues.apache.org/jira/browse/HIVE-4293
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Critical
>         Attachments: D9933.6.patch, HIVE-4293.10.patch, HIVE-4293.11.patch.txt, HIVE-4293.12.patch, HIVE-4293.13.patch, HIVE-4293.7.patch.txt, HIVE-4293.8.patch.txt, HIVE-4293.9.patch.txt, HIVE-4293.D9933.1.patch, HIVE-4293.D9933.2.patch, HIVE-4293.D9933.3.patch, HIVE-4293.D9933.4.patch, HIVE-4293.D9933.5.patch
>
>
> For example, 
> {noformat}
> explain SELECT value from (
>   select explode(array(key, value)) as (value) from (
>     select * FROM src WHERE key > 200
>   ) A
> ) B WHERE value > 300
> ;
> {noformat}
> Makes plan like this, removing last predicates
> {noformat}
>   TableScan
>     alias: src
>     Filter Operator
>       predicate:
>           expr: (key > 200.0)
>           type: boolean
>       Select Operator
>         expressions:
>               expr: array(key,value)
>               type: array<string>
>         outputColumnNames: _col0
>         UDTF Operator
>           function name: explode
>           Select Operator
>             expressions:
>                   expr: col
>                   type: string
>             outputColumnNames: _col0
>             File Output Operator
>               compressed: false
>               GlobalTableId: 0
>               table:
>                   input format: org.apache.hadoop.mapred.TextInputFormat
>                   output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
> {noformat}



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