[HIVE-12381] analyze table compute stats for table with special characters will wipe out all the table stats

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Labels: TODOC2.0
• Assignee: Pengcheng Xiong
• Reporter: Pengcheng Xiong
• Created: 10/Nov/15 22:09
• Updated: 23/Dec/15 08:30
• Resolved: 02/Dec/15 14:44

Description

repo:

drop table `t//`;
create table `t//` (col string);
insert into `t//` values(1);
insert into `t//` values(null);
analyze table `t//` compute statistics;
explain select * from `t//`;

The result

Statistics: Num rows: 1 Data size: 5 Basic stats: COMPLETE Column stats: NONE

is wrong

Issue Links

• is related to: HIVE-12395 Turn off CBO for hive.support.special.characters.tablename tests until feature is complete
• links to: RB