Date32 - ClickHouse Documentation

日期。支持从 1900-01-01 到 2299-12-31 的日期范围。以原生字节序存储为有符号 32 位整数，其值表示自 1900-01-01 起的天数。重要！ 0 表示 1970-01-01，负值表示 1970-01-01 之前的天数。示例创建一个包含 Date32 类型列的表，并向其中插入数据：

CREATE TABLE dt32
(
    `timestamp` Date32,
    `event_id` UInt8
)
ENGINE = TinyLog;

-- Parse Date
-- - from string,
-- - from 'small' integer interpreted as number of days since 1970-01-01, and
-- - from 'big' integer interpreted as number of seconds since 1970-01-01.
INSERT INTO dt32 VALUES ('2100-01-01', 1), (47482, 2), (4102444800, 3);

SELECT * FROM dt32;

┌──timestamp─┬─event_id─┐
│ 2100-01-01 │        1 │
│ 2100-01-01 │        2 │
│ 2100-01-01 │        3 │
└────────────┴──────────┘

另见

toDate32
toDate32OrZero
toDate32OrNull