[HIVE-21897] Setting serde / serde properties for partitions

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 3.1.1
• Fix Version/s: 4.0.0-alpha-2
• Component/s: Hive
• Assignee: Miklos Gergely
• Reporter: Miklos Gergely
• Created: 19/Jun/19 22:46
• Updated: 16/Nov/22 13:50
• Resolved: 20/Jun/19 23:20

Description

According to https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-AddSerDeProperties the SerDe and the SerDe properties can be set for a partition too, so

 

ALTERT TABLE table PARTITION (partition_col='partition_value') SET SERDE 'serde.class.name';

Is a valid statement. In fact it is not rejected, but it is not doing anything at all. The execution is successful, everything remains the same. The same is true for setting the serde properties:

ALTER TABLE table PARTITION (partition_col='partition_value') SET SERDEPROPERTIES ('property_name'='property_value');

is also a valid statement, and not doing anything.

I suggest to modify the parser, and reject these statements. SerDe is for a table, and not for a partition.