我在DolphinDB中使用下面的语句查询数据，使用到了arrayVector创建向量
bars=select first(sx), last(sx), first(sx)-last(sx)+1 as window, last(lastprice) as o, max(lastprice) as h, min(lastprice) as l, first(lastprice) as c, arrayVector([size(lastprice)], lastprice) as lastprice_arr from ticks group by bar(sx_desc,barsize,closed='right')
但是却提示我需要用toArray，修改成下面的语句就可以通过：
bars=select first(sx), last(sx), first(sx)-last(sx)+1 as window, last(lastprice) as o, max(lastprice) as h, min(lastprice) as l, first(lastprice) as c, toArray(lastprice) as lastprice_arr from ticks group by bar(sx_desc,barsize,closed='right')
是因为select语句中只能使用toArray而不能用arrayVector吗
