Bug 195970 Two issues when evaluate a query inlcuding a subquery[07]
Description: Currently, when evaluating a query which includes a subquery, the query will be evaluated twice. The binding of query will pass to subquery twice. If user write a java script such as new Date() and i++. The result of query will be incorrect. Another issue: when write the report document, the binding of query will be written twice and the performance is not good to evalulate it twice.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedQuery.java
return this.session.getSharedScope( );
	}
	/**
	 * @return baseQueryDefinition
	 */
	IBaseQueryDefinition getBaseQueryDefn( )
	{
		return baseQueryDefn;
	}
	
	/**
	 * @return aggregateTable
	 */
	AggregateTable getAggrTable( )
	{
		return aggrTable;
	}
	
}
/**
 * 
 *
 */
class QueryDefinitionCopyUtil
{
	/**
	 * 
	 * @param baseQyeryDef
	 * @return
	 * @throws DataException