Hello. Is it possible to have a variable referencing another variable inside the LET clause?
I’ve tried the following:
SELECT a,b
FROM default
LET a=1, b=a+1
but b is not printed, as a is not recognized in b's assignment. Thanks!
Hi @manusyone,
In the LET expression, RHS can have constant expressions or references to data from the projected document. In this case, this is treated as:
SELECT a,b
FROM default
LET a=1, b= default.a+1
Since default.a is missing, b goes missing in the projection.
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So there is no way to achieve the functionality I mentioned above? I ask this because I have quite an extensive operation going on in the first part of the LET statement that I would like to reuse on the second part, and the only way I am seeing that we can solve this is to duplicate all of the code again…