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/ExprManager.java
{
				if ( gcb.getGroupLevel( ) > entryLevel )
					continue;
			}
			Object o = gcb.getExpression( name );
			if ( o != null )
				return (IBaseExpression) o;
		}
		return null;
	}
	
	/**
	 * @param name
	 * @return auto binding expression for specified name
	 */
	IScriptExpression getAutoBindingExpr( String name )
	{
		return (IScriptExpression) this.autoBindingExprMap.get( name );
	}
	
	/**
	 * TODO: remove me
	 * @return
	 */
	List getBindingExprs( )
	{
		return this.bindingExprs;
	}
	/**
	 * TODO: remove me