如何为 bigquery 声明常量列表

Question

just playing around with setting parameters in BigQuery.

I know this works:

DECLARE X STRING;
SET X = 'APPLE'

SELECT *
FROM DATASET
WHERE name = X

Now I want to set a list of parameters to be used as a reference, like:

DECLARE X ???;
SET X = {'APPLE','BANANA','CHERRY'}

SELECT *
FROM DATASET
WHERE name in UNNEST(X)

What should I use in '???'Using string obviously gave an

Query error: Cannot coerce expression

error, but I am unsure what category to use. Array doesn't seem to work either? :(

Thanks for the help. CN

Answer 1

You want an array of strings. I would write this as:

DECLARE X array<string>;
SET X = array['APPLE', 'BANANA', 'CHERRY'];