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https://issues.apache.org/jira/browse/HIVE-14563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pengcheng Xiong updated HIVE-14563:
-----------------------------------
Affects Version/s: 2.1.0
> StatsOptimizer treats NULL in a wrong way
> -----------------------------------------
>
> Key: HIVE-14563
> URL: https://issues.apache.org/jira/browse/HIVE-14563
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.1.0
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Fix For: 2.2.0
>
> Attachments: HIVE-14563.01.patch
>
>
> {code}
> OSTHOOK: query: explain select count(key) from (select null as key from
> src)src
> POSTHOOK: type: QUERY
> STAGE DEPENDENCIES:
> Stage-0 is a root stage
> STAGE PLANS:
> Stage: Stage-0
> Fetch Operator
> limit: 1
> Processor Tree:
> ListSink
> PREHOOK: query: select count(key) from (select null as key from src)src
> PREHOOK: type: QUERY
> PREHOOK: Input: default@src
> #### A masked pattern was here ####
> POSTHOOK: query: select count(key) from (select null as key from src)src
> POSTHOOK: type: QUERY
> POSTHOOK: Input: default@src
> #### A masked pattern was here ####
> 500
> {code}
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