[jira] [Commented] (HIVE-11208) Can not drop a default partition __HIVE_DEFAULT_PARTITION__ which is not a "string" type

["Sergey Shelukhin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-11208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15867020#comment-15867020 ] 

Sergey Shelukhin commented on HIVE-11208:
-----------------------------------------

Why does this add special handing only to 2 UDFs? In fact, why should special handling be necessary? It looks like evaluators are invalid, see  HIVE-15923  where it fails in a different UDF.
Evaluators should instead return null for this case; or, every UDF would need this magic.

> Can not drop a default partition __HIVE_DEFAULT_PARTITION__ which is not a "string" type
> ----------------------------------------------------------------------------------------
>
>                 Key: HIVE-11208
>                 URL: https://issues.apache.org/jira/browse/HIVE-11208
>             Project: Hive
>          Issue Type: Bug
>          Components: Parser
>    Affects Versions: 1.1.0
>            Reporter: Yongzhi Chen
>            Assignee: Aihua Xu
>             Fix For: 2.2.0
>
>         Attachments: HIVE-11208.2.patch, HIVE-11208.3.patch
>
>
> When partition is not a string type, for example, if it is a int type, when drop the default partition __HIVE_DEFAULT_PARTITION__, you will get:
> SemanticException Unexpected unknown partitions
> Reproduce:
> {noformat}
> SET hive.exec.dynamic.partition=true;
> SET hive.exec.dynamic.partition.mode=nonstrict;
> set hive.exec.max.dynamic.partitions.pernode=10000;
> DROP TABLE IF EXISTS test;
> CREATE TABLE test (col1 string) PARTITIONED BY (p1 int) ROW FORMAT DELIMITED FIELDS TERMINATED BY '\001' STORED AS TEXTFILE;
> INSERT OVERWRITE TABLE test PARTITION (p1) SELECT code, IF(salary > 600, 100, null) as p1 FROM jsmall;
> hive> SHOW PARTITIONS test;
> OK
> p1=100
> p1=__HIVE_DEFAULT_PARTITION__
> Time taken: 0.124 seconds, Fetched: 2 row(s)
> hive> ALTER TABLE test DROP partition (p1 = '__HIVE_DEFAULT_PARTITION__');
> FAILED: SemanticException Unexpected unknown partitions for (p1 = null)
> {noformat}



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