ClickHouse/tests/queries/0_stateless/01596_setting_limit_offset.sql

DROP TABLE IF EXISTS test;
CREATE TABLE test (i UInt64) Engine = MergeTree() order by i;
INSERT INTO test SELECT number FROM numbers(100);
INSERT INTO test SELECT number FROM numbers(10,100);
OPTIMIZE TABLE test FINAL;

-- Only set limit
SET limit = 5;
SELECT * FROM test; -- 5 rows
SELECT * FROM test OFFSET 20; -- 5 rows
SELECT * FROM (SELECT i FROM test LIMIT 10 OFFSET 50) TMP; -- 5 rows
SELECT * FROM test LIMIT 4 OFFSET 192; -- 4 rows
SELECT * FROM test LIMIT 10 OFFSET 195; -- 5 rows
SELECT * FROM test LIMIT 2*2 OFFSET 192;

-- Only set offset
SET limit = 0;
SET offset = 195;
SELECT * FROM test; -- 5 rows
SELECT * FROM test OFFSET 20; -- no result
SELECT * FROM test LIMIT 100; -- no result
SET offset = 10;
SELECT * FROM test LIMIT 20 OFFSET 100; -- 10 rows
SELECT * FROM test LIMIT 11 OFFSET 100; -- 1 rows
SELECT * FROM test LIMIT 20 OFFSET 10*10;
SELECT * FROM test LIMIT 4*5 OFFSET 10*10;

-- offset and limit together
SET limit = 10;
SELECT * FROM test LIMIT 50 OFFSET 50; -- 10 rows
SELECT * FROM test LIMIT 50 OFFSET 190; -- 0 rows
SELECT * FROM test LIMIT 50 OFFSET 185; -- 5 rows
SELECT * FROM test LIMIT 18 OFFSET 5; -- 8 rows

DROP TABLE test;