如何在 S3 上按年和月进行分区写入？

我想导出数据，并将 S3 存储桶中的路径分隔为如下结构

2022
- 1
- 2
- ...
- 12
2021
- 1
- 2
- ...
- 12

等等…

答案

考虑 ClickHouse 表

CREATE TABLE sample_data (
    `name` String,
    `age` Int,
    `time` DateTime
) ENGINE = MergeTree
ORDER BY
    name

添加 10000 条条目

INSERT INTO
    sample_data
SELECT
    *
FROM
    generateRandom(
        'name String, age Int, time DateTime',
        10,
        10,
        10
    )
LIMIT
    10000;

运行此命令以在 s3 存储桶 my_bucket 中创建所需的结构（请注意，此示例以 parquet 格式写入文件）

INSERT INTO
    FUNCTION s3(
        'https://s3-host:4321/my_bucket/{_partition_id}/file.parquet.gz',
        's3-access-key',
        's3-secret-access-key',
        Parquet,
        'name String, age Int, time DateTime'
    ) PARTITION BY concat(
        formatDateTime(time, '%Y'),
        '/',
        formatDateTime(time, '%m')
    )
SELECT
    name,
    age,
    time
FROM
    sample_data
Query id: 55adcf22-f6af-491e-b697-d09694bbcc56

Ok.

0 rows in set. Elapsed: 15.579 sec. Processed 10.00 thousand rows, 219.93 KB (641.87 rows/s., 14.12 KB/s.)

答案​

答案