[EMPIREDB-145] Allow create of DBQuery from DBCommandExpr

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: empire-db-2.4.0
• Component/s: Core
• Assignee: Rainer Döbele
• Reporter: Rainer Döbele
• Created: 24/May/12 13:27
• Updated: 24/Jul/12 15:54
• Resolved: 24/Jul/12 15:54

Description

Currently creating a DBQuery object (used for subqueries) requires a DBCommand source object.
However UNIONS and INSTERSECT statements are of type DBCommandExpr - a superclass of DBCommand.
Extend DBQuery to allow DBCommandExpr as well