[DERBY-2528] Set the correct collation type in SchemaDescriptor. The collation type will be UCS_BASIC for system schemas but it can be TERRITORY_BASED/UCS_BASIC for user schemas.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.3.1.4
• Fix Version/s: 10.3.1.4
• Component/s: SQL
• Assignee: Mamta A. Satoor
• Reporter: Mamta A. Satoor
• Created: 05/Apr/07 21:16
• Updated: 02/May/13 02:29
• Resolved: 14/May/07 17:23

Description

As per the wiki page http://wiki.apache.org/db-derby/BuiltInLanguageBasedOrderingDERBY-1478, Section Collation Determination, item 2)
)<column definition> (of character string type) SQL spec Section 11.1 <schema definition>, General Rule 3 specifies that the character set associated with schema is used as the default character set for all <column definitions>. Based on this, character columns in user tables will have USER character set associated with them and hence collation type of UCS_BASIC/TERRITORY_BASED. The collation derivation will be implicit.

In order for column definition to pick up the collation from the schema, correct collation type should be available in schema. In Derby implementation world, this translates having correct collation type in SchemaDescriptor. This jira entry is to track the work required in associating collation type to a SchemaDescriptor.

Issue Links

• is depended upon by: DERBY-2336 Enable collation based ordering for CHAR data type.