min

導入バージョン: v1.1.0 値のグループ内の最小値を計算する集約関数です。構文

min(column)

引数

column — カラム名または式。Any

戻り値 入力と同じ型で、グループ内の最小値を返します。Any 例 基本的な min の例

Query

CREATE TABLE employees (name String, salary UInt32) ENGINE = Memory;
INSERT INTO employees VALUES ('Alice', 3000), ('Bob', 4000), ('Charlie', 3500);

SELECT min(salary) FROM employees;

Response

┌─min(salary)─┐
│        3000 │
└─────────────┘

GROUP BY と併用した Min

Query

CREATE TABLE sales (department String, revenue UInt32) ENGINE = Memory;
INSERT INTO sales VALUES ('Engineering', 100000), ('Engineering', 120000), ('Marketing', 80000), ('Marketing', 90000);

SELECT department, min(revenue) FROM sales GROUP BY department ORDER BY department;

Response

┌─department──┬─min(revenue)─┐
│ Engineering │       100000 │
│ Marketing   │        80000 │
└─────────────┴──────────────┘

​min

min