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https://issues.apache.org/jira/browse/HIVE-11208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aihua Xu updated HIVE-11208:
----------------------------
Actually that change would be fine. Here is the thought on the implementation:
default partition is a special value although internally we use a string to
represent it. We can reserve default keyword for it. It will only support x =
default or x != default. Other comparisons actually should error out during
earlier compilation time. Hope that makes sense to you.
> 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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