我在DolphinDB database中有一张分布式表tb_kline,其字段和数据如下图所示:
现在我要把tb_kline中DT,Code重复的过滤掉,代码如下:
select * from tb_kline where isDuplicated([DT
,Code],FIRST)=false
但执行时报错如下:
The where clause [isDuplicated([ DT, Code ], FIRST) == 0] of a distributed/partitioned sql shouldn't use any aggregate or sequential function.
我上面那个语法,是哪里写错了吗?
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