在 BigQuery 中声明数组常量

Question

I am trying to refactor a SQL query and current query is

WITH first_result AS (
    select table.a,table.b,table.c from table where table.a NOT IN 
    ('x', 'y', 'z',.......1000 more entries)),
second_result AS (....),
SELECT * FROM second_result

How do I separate the ['x', 'y', 'z',.......1000 more entries] into a constant? I want to make the query more readable

Answer 1

The original question was about fixing below query -

with first_result as (
    select table.a,table.b,table.c from table where table.a not in 
    ['x', 'y', 'z']),
second_result as (....),
select * from second_result

With the answer

You should use WHERE a NOT IN UNNEST(['x', 'y', 'z']) as in below example (BigQuery Standard SQL)

with first_result as (
    select table.a,table.b,table.c from table where table.a not in 
    UNNEST(['x', 'y', 'z'])  ),
second_result as (....),
select * from second_result