Another (hopefully newbie) question. Trying to use LEAD/LAG over window
functions. I get the following error. The exact same query works properly
using FIRST_VALUE instead of LEAD.
Thanks in advance...
- Patrick
Flink SQL> describe l1_min ;
+---++--+-+--
Hi Patrick,
I could imagine that LEAD/LAG are translated into RANK/ROW_NUMBER
operations that are not supported in this context.
But I will loop in @Jark who might know more about the limitaitons here.
Regards,
Timo
On 29.01.21 17:37, Patrick Angeles wrote:
Another (hopefully newbie) questi
Yes. RANK/ROW_NUMBER is not allowed with ROW/RANGE over window,
i.e. the "ROWS BETWEEN 1 PRECEDING AND CURRENT ROW" clause.
Best,
Jark
On Mon, 1 Feb 2021 at 22:06, Timo Walther wrote:
> Hi Patrick,
>
> I could imagine that LEAD/LAG are translated into RANK/ROW_NUMBER
> operations that are not s
Thanks, Jark.
On Mon, Feb 1, 2021 at 11:50 PM Jark Wu wrote:
> Yes. RANK/ROW_NUMBER is not allowed with ROW/RANGE over window,
> i.e. the "ROWS BETWEEN 1 PRECEDING AND CURRENT ROW" clause.
>
> Best,
> Jark
>
> On Mon, 1 Feb 2021 at 22:06, Timo Walther wrote:
>
>> Hi Patrick,
>>
>> I could imagi
