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https://issues.apache.org/jira/browse/HIVE-2352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Franklin Hu updated HIVE-2352:
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Description:
create table t1 (key int, value string) stored as rcfile;
insert overwrite table t1 select * from src where false;
Creates an empty RCFile with no rows and size 151B. The file not should be
created since there are no rows.
was:
create table t1 (key int, value string) stored as rcfile;
insert overwrite table t1 select * from src where false;
Creates an empty RCFile with no rows and size 151B. The file not should be
created since there are no rows.
Fix:
If bucketing IS NOT enforced:
Create empty files in neither bucketed nor non-bucketed tables
If bucketing IS enforced:
Do not create empty files in non-bucketed tables
Create BUCKET_COUNT number of empty files for bucketed tables
> create empty files if and only if table is bucketed and
> hive.enforce.bucketing=true
> -----------------------------------------------------------------------------------
>
> Key: HIVE-2352
> URL: https://issues.apache.org/jira/browse/HIVE-2352
> Project: Hive
> Issue Type: Bug
> Reporter: Franklin Hu
> Assignee: Franklin Hu
> Priority: Minor
> Attachments: hive-2352.1.patch, hive-2352.2.patch
>
>
> create table t1 (key int, value string) stored as rcfile;
> insert overwrite table t1 select * from src where false;
> Creates an empty RCFile with no rows and size 151B. The file not should be
> created since there are no rows.
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