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added more tests #1

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Jun 10, 2024
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added more tests #1

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1 change: 1 addition & 0 deletions t/info_schema.test
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Original file line number Diff line number Diff line change
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describe information_schema.administrable_role_authorizations;
458 changes: 458 additions & 0 deletions t/subqueries.test
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CREATE TABLE user (
id INT PRIMARY KEY,
name VARCHAR(100)
);

CREATE TABLE user_extra (
user_id INT,
extra_info VARCHAR(100),
PRIMARY KEY (user_id, extra_info)
);

# Inserts for user table
INSERT INTO user (id, name) VALUES
(1, 'Alice'),
(2, 'Bob'),
(3, 'Charlie'),
(4, 'David'),
(5, 'Eve'),
(6, 'Frank'),
(7, 'Grace'),
(8, 'Hannah'),
(9, 'Ivy'),
(10, 'Jack');

# Inserts for user_extra table
INSERT INTO user_extra (user_id, extra_info) VALUES
(1, 'info1'),
(1, 'info2'),
(2, 'info1'),
(3, 'info1'),
(3, 'info2'),
(4, 'info1'),
(5, 'info1'),
(6, 'info1'),
(7, 'info1'),
(8, 'info1');

# uncorrelated subqueries
# subquery in SELECT and WHERE
SELECT
(SELECT COUNT(*) FROM user_extra) AS order_count,
id
FROM
user
WHERE
id = (SELECT COUNT(*) FROM user_extra)

# subquery in SELECT and GROUP BY
--skip not supported
SELECT
id,
(SELECT COUNT(*) FROM user_extra) AS order_count
FROM
user
GROUP BY
id,
(SELECT COUNT(*) FROM user_extra);

# subquery in SELECT and ORDER BY
SELECT
id,
(SELECT COUNT(*) FROM user_extra) AS order_count
FROM
user
ORDER BY
(SELECT COUNT(*) FROM user_extra);

# subquery in WHERE and ORDER BY
SELECT
id
FROM
user
WHERE
id = (SELECT COUNT(*) FROM user_extra)
ORDER BY
(SELECT COUNT(*) FROM user_extra);

# subquery in WHERE and GROUP BY
--skip not supported
SELECT
id
FROM
user
WHERE
id = (SELECT COUNT(*) FROM user_extra)
GROUP BY
id,
(SELECT COUNT(*) FROM user_extra);

# subquery in GROUP BY and ORDER BY
--skip not supported
SELECT
id
FROM
user
GROUP BY
id,
(SELECT COUNT(*) FROM user_extra)
ORDER BY
(SELECT COUNT(*) FROM user_extra);

# subquery in HAVING and ORDER BY
--skip not supported
SELECT
id,
COUNT(*)
FROM
user
GROUP BY
id
HAVING
COUNT(*) > (SELECT COUNT(*) FROM user_extra)
ORDER BY
(SELECT COUNT(*) FROM user_extra);

# subquery in HAVING and SELECT
SELECT
id,
(SELECT COUNT(*) FROM user_extra) AS order_count
FROM
user
GROUP BY
id
HAVING
COUNT(*) > (SELECT COUNT(*) FROM user_extra);

# subquery in WHERE and HAVING
-- skip not supported
SELECT
id,
COUNT(*)
FROM
user
WHERE
id IN (SELECT id FROM user_extra)
GROUP BY
id
HAVING
COUNT(*) > (SELECT COUNT(*) FROM user_extra);

# correlated subqueries that can be merged
# correlated subquery in SELECT and WHERE
SELECT
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) AS extra_count,
id,
name
FROM
user
WHERE
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) > 0;

# correlated subquery in SELECT and GROUP BY
--skip not supported
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) AS extra_count
FROM
user
GROUP BY
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id);

# correlated subquery in SELECT and ORDER BY
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) AS extra_count
FROM
user
ORDER BY
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id);

# correlated subquery in WHERE and ORDER BY
SELECT
id,
name
FROM
user
WHERE
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) > 0
ORDER BY
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id);

# correlated subquery in WHERE and GROUP BY
--skip not supported
SELECT
id,
name
FROM
user
WHERE
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) > 0
GROUP BY
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id);

# correlated subquery in GROUP BY and ORDER BY
--skip not supported
SELECT
id,
name
FROM
user
GROUP BY
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id)
ORDER BY
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id);

# correlated subquery in HAVING and ORDER BY
--skip not supported
SELECT
id,
name,
COUNT(*)
FROM
user
GROUP BY
id,
name
HAVING
COUNT(*) > (SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id)
ORDER BY
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id);

# correlated subquery in HAVING and SELECT
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) AS extra_count
FROM
user
GROUP BY
id,
name
HAVING
COUNT(*) > (SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id);

# correlated subquery in WHERE and HAVING
SELECT
id,
name,
COUNT(*)
FROM
user
WHERE
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) > 0
GROUP BY
id,
name
HAVING
COUNT(*) > (SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id);

# correlated subqueries that can be merged
SELECT
id,
round(MAX(id + (SELECT COUNT(*) FROM user_extra where user_id = 42))) as r
FROM user
WHERE id = 42
GROUP BY id
ORDER BY r;

# Subquery in SELECT with Complex Expression
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) * 2 AS double_extra_count
FROM
user;

# Subquery in WHERE with Complex Expression
SELECT
id,
name
FROM
user
WHERE
id IN (SELECT user_id FROM user_extra WHERE LENGTH(extra_info) > 4);

# Subquery in HAVING with Complex Expression
SELECT
id,
COUNT(*)
FROM
user
GROUP BY
id
HAVING
COUNT(*) > (SELECT COUNT(*) FROM user_extra WHERE user_extra.user_id = user.id) + 1;

# Subquery in ORDER BY with Complex Expression
SELECT
id,
name
FROM
user
ORDER BY
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) * id;

# Correlated Subquery in SELECT with Arithmetic Expression
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user.id = user_extra.user_id) + id AS extra_count_plus_id
FROM
user;

# Subquery in WHERE with Logical Expression
SELECT
id,
name
FROM
user
WHERE
id IN (SELECT user_id FROM user_extra WHERE extra_info = 'info1')
OR id IN (SELECT user_id FROM user_extra WHERE extra_info = 'info2');

# Subquery with COUNT aggregation in SELECT, used in ORDER BY
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra) AS total_extra_count,
SUM(id) AS sum_ids
FROM
user
GROUP BY
id, name
ORDER BY
(SELECT COUNT(*) FROM user_extra);

# Subquery with SUM aggregation in SELECT, used in HAVING
SELECT
id,
name,
(SELECT SUM(LENGTH(extra_info)) FROM user_extra) AS total_length_extra_info,
AVG(id) AS avg_ids
FROM
user
GROUP BY
id, name
HAVING
(SELECT SUM(LENGTH(extra_info)) FROM user_extra) > 10;

# Subquery with AVG aggregation in SELECT, used in WHERE
SELECT
id,
name,
(SELECT AVG(LENGTH(extra_info)) FROM user_extra) AS avg_length_extra_info,
MAX(id) AS max_id
FROM
user
WHERE
id IN (SELECT user_id FROM user_extra)
GROUP BY
id, name;

# Subquery with MAX aggregation in SELECT, used in ORDER BY
SELECT
id,
name,
(SELECT MAX(LENGTH(extra_info)) FROM user_extra) AS max_length_extra_info,
MIN(id) AS min_id
FROM
user
GROUP BY
id, name
ORDER BY
(SELECT MAX(LENGTH(extra_info)) FROM user_extra);

# Subquery with MIN aggregation in SELECT, used in HAVING
SELECT
id,
name,
(SELECT MIN(LENGTH(extra_info)) FROM user_extra) AS min_length_extra_info,
SUM(id) AS sum_ids
FROM
user
GROUP BY
id, name
HAVING
(SELECT MIN(LENGTH(extra_info)) FROM user_extra) < 5;

# Subquery with COUNT aggregation in SELECT, used in WHERE
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra) AS total_extra_count,
AVG(id) AS avg_ids
FROM
user
WHERE
id > (SELECT COUNT(*) FROM user_extra)
GROUP BY
id, name;

# Subquery with SUM aggregation in SELECT, used in ORDER BY
SELECT
id,
name,
(SELECT SUM(LENGTH(extra_info)) FROM user_extra) AS total_length_extra_info,
COUNT(id) AS count_ids
FROM
user
GROUP BY
id, name
ORDER BY
(SELECT SUM(LENGTH(extra_info)) FROM user_extra);

# Subquery with Multiple Aggregations in SELECT, used in HAVING
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra) AS total_extra_count,
(SELECT SUM(LENGTH(extra_info)) FROM user_extra) AS total_length_extra_info,
(SELECT AVG(LENGTH(extra_info)) FROM user_extra) AS avg_length_extra_info,
(SELECT MAX(LENGTH(extra_info)) FROM user_extra) AS max_length_extra_info,
(SELECT MIN(LENGTH(extra_info)) FROM user_extra) AS min_length_extra_info,
SUM(id) AS sum_ids
FROM
user
GROUP BY
id, name
HAVING
(SELECT AVG(LENGTH(extra_info)) FROM user_extra) > 2;

# Subquery in SELECT with Aggregation, used in WHERE
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra) + id AS total_extra_count_plus_id,
AVG(id) AS avg_ids
FROM
user
WHERE
id < (SELECT MAX(user_id) FROM user_extra)
GROUP BY
id, name;

# Complex Subquery with Aggregation in SELECT, used in ORDER BY
SELECT
id,
name,
(SELECT COUNT(*) FROM user_extra WHERE user_extra.user_id = user.id) AS extra_count,
(SELECT SUM(LENGTH(extra_info)) FROM user_extra WHERE user_extra.user_id = user.id) AS total_length_extra_info,
SUM(id) AS sum_ids,
AVG(id) AS avg_ids,
MAX(id) AS max_id,
MIN(id) AS min_id
FROM
user
GROUP BY
id, name
ORDER BY
(SELECT SUM(LENGTH(extra_info)) FROM user_extra WHERE user_extra.user_id = user.id);