[HIVE-2011] upgrade-0.6.0.mysql.sql script attempts to increase size of PK COLUMNS.TYPE_NAME to 4000

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.6.0
• Fix Version/s: 0.7.0
• Component/s: Metastore
• Hadoop Flags: Reviewed
• Assignee: Carl Steinbach
• Reporter: Carl Steinbach
• Created: 28/Feb/11 18:10
• Updated: 16/Dec/11 23:59
• Resolved: 19/Mar/11 04:04

Description

# mysql flumenewresearch < upgrade-0.6.0.mysql.sql 
ERROR 1071 (42000) at line 16: Specified key was too long; max key length is 767 bytes

Here's the cause of the problem from upgrade-0.6.0.mysql.sql:

...
ALTER TABLE `COLUMNS` MODIFY `TYPE_NAME` VARCHAR(4000);
...
ALTER TABLE `COLUMNS` DROP PRIMARY KEY;
ALTER TABLE `COLUMNS` ADD PRIMARY KEY (`SD_ID`, `COLUMN_NAME`);
...

We need to make sure that the PK on COLUMNS.TYPE_NAME is dropped before the size of the column is bumped to 4000.

Issue Links

• incorporates: HIVE-2010 Improve naming and README files for MetaStore upgrade scripts
• relates to: HIVE-2076 Provide Metastore upgrade scripts and default schemas for PostgreSQL