ClickHouse/tests/queries/0_stateless/01646_rewrite_sum_if.sql

SET optimize_rewrite_sum_if_to_count_if = 0;

SELECT sumIf(1, number % 2 > 2) FROM numbers(100);
SELECT sumIf(1 as one_expr, number % 2 > 2 as cond_expr), sum(cond_expr), one_expr FROM numbers(100);
SELECT countIf(number % 2 > 2) FROM numbers(100);

SELECT sumIf(1, number % 2 == 0) FROM numbers(100);
SELECT sumIf(1 as one_expr, number % 2 == 0 as cond_expr), sum(cond_expr), one_expr FROM numbers(100);
SELECT countIf(number % 2 == 0) FROM numbers(100);

SELECT sum(if(number % 2 == 0, 1, 0)) FROM numbers(100);
SELECT sum(if(number % 2 == 0 as cond_expr, 1 as one_expr, 0 as zero_expr) as if_expr), sum(cond_expr), sum(if_expr), one_expr, zero_expr FROM numbers(100);
SELECT countIf(number % 2 == 0) FROM numbers(100);

SELECT sum(if(number % 2 == 0, 0, 1)) FROM numbers(100);
SELECT sum(if(number % 2 == 0 as cond_expr, 0 as zero_expr, 1 as one_expr) as if_expr), sum(cond_expr), sum(if_expr), one_expr, zero_expr FROM numbers(100);
SELECT countIf(number % 2 != 0) FROM numbers(100);

SET optimize_rewrite_sum_if_to_count_if = 1;

SELECT sumIf(1, number % 2 > 2) FROM numbers(100);
SELECT sumIf(1 as one_expr, number % 2 > 2 as cond_expr), sum(cond_expr), one_expr FROM numbers(100);
SELECT countIf(number % 2 > 2) FROM numbers(100);

SELECT sumIf(1, number % 2 == 0) FROM numbers(100);
SELECT sumIf(1 as one_expr, number % 2 == 0 as cond_expr), sum(cond_expr), one_expr FROM numbers(100);
SELECT countIf(number % 2 == 0) FROM numbers(100);

SELECT sum(if(number % 2 == 0, 1, 0)) FROM numbers(100);
SELECT sum(if(number % 2 == 0 as cond_expr, 1 as one_expr, 0 as zero_expr) as if_expr), sum(cond_expr), sum(if_expr), one_expr, zero_expr FROM numbers(100);
SELECT countIf(number % 2 == 0) FROM numbers(100);

SELECT sum(if(number % 2 == 0, 0, 1)) FROM numbers(100);
SELECT sum(if(number % 2 == 0 as cond_expr, 0 as zero_expr, 1 as one_expr) as if_expr), sum(cond_expr), sum(if_expr), one_expr, zero_expr FROM numbers(100);
SELECT countIf(number % 2 != 0) FROM numbers(100);

set enable_analyzer = true;

EXPLAIN QUERY TREE run_passes=1 SELECT sumIf(123, number % 2 == 0) FROM numbers(100);
EXPLAIN QUERY TREE run_passes=1 SELECT sum(if(number % 2 == 0, 123, 0)) FROM numbers(100);
EXPLAIN QUERY TREE run_passes=1 SELECT sum(if(number % 2 == 0, 0, 123)) FROM numbers(100);