-- columns aliases, from:
-- https://github.com/duckdb/duckdb/blob/9196dd9b0a163e6c8aada26218803d04be30c562/test/sql/parser/columns_aliases.test
CREATE TABLE integers (ts TIMESTAMP TIME INDEX, i INT, j INT);

Affected Rows: 0

INSERT INTO integers SELECT 0::TIMESTAMP ts, 42 i, 84 j UNION ALL SELECT 1::TIMESTAMP, 13, 14;

Affected Rows: 2

SELECT i, j FROM (SELECT COLUMNS(*)::VARCHAR FROM integers);

Error: 3000(PlanQuery), Failed to plan SQL: Error during planning: Invalid function 'columns'.
Did you mean 'count'?

SELECT i, j FROM (SELECT * FROM integers);

+----+----+
| i  | j  |
+----+----+
| 42 | 84 |
| 13 | 14 |
+----+----+

SELECT min_i, min_j, max_i, max_j FROM (SELECT MIN(i) AS "min_i", MAX(i) AS "max_i", MIN(j) AS "min_j", MAX(j) AS "max_j" FROM integers);

+-------+-------+-------+-------+
| min_i | min_j | max_i | max_j |
+-------+-------+-------+-------+
| 13    | 14    | 42    | 84    |
+-------+-------+-------+-------+

DROP TABLE integers;

Affected Rows: 0

-- skipped, unsupported feature: digit separators
-- SELECT 1_000_000;
-- skipped, unsupported feature: division operator precedence
-- SELECT 6 + 1 // 2;
-- expression depth, from:
-- https://github.com/duckdb/duckdb/blob/9196dd9b0a163e6c8aada26218803d04be30c562/test/sql/parser/expression_depth_limit.test
SELECT (1+(1+(1+(1+(1+(1+(1+1)))))));

+---------------------------------------------------------------------------------------+
| Int64(1) + Int64(1) + Int64(1) + Int64(1) + Int64(1) + Int64(1) + Int64(1) + Int64(1) |
+---------------------------------------------------------------------------------------+
| 8                                                                                     |
+---------------------------------------------------------------------------------------+