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https://issues.apache.org/jira/browse/HIVE-11208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15868064#comment-15868064
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Aihua Xu commented on HIVE-11208:
---------------------------------
[~sershe] I checked HIVE-15923 but didn't get what kind of queries are failing?
For the comparison like default > 3, it should return null since these two are
not comparable.
Regarding " exprs are not supposed to be exposed to UDFs". Yeah, I remember I
realize I should add another level for that constant but probably I was lazy on
that.
Let me check the fix for HIVE-15923. Probably better we can add 'default'
keyword and support x is default or x = default syntax.
> 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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