ClickHouse/dbms/tests/queries/0_stateless/00917_least_sqr.sql

select arrayReduce('simpleLinearRegression', [1, 2, 3, 4], [100, 110, 120, 130]);
select arrayReduce('simpleLinearRegression', [1, 2, 3, 4], [100, 110, 120, 131]);
select arrayReduce('simpleLinearRegression', [-1, -2, -3, -4], [-100, -110, -120, -130]);
select arrayReduce('simpleLinearRegression', [5, 5.1], [6, 6.1]);
select arrayReduce('simpleLinearRegression', [0], [0]);
select arrayReduce('simpleLinearRegression', [3, 4], [3, 3]);
select arrayReduce('simpleLinearRegression', [3, 3], [3, 4]);
select arrayReduce('simpleLinearRegression', emptyArrayUInt8(), emptyArrayUInt8());