SPLIT（Lakehouse v1）

使用指定分隔符拆分字符串，并以数组形式返回拆分后的各部分。

另请参阅：SPLIT_PART

Analyze 语法

func.split('<input_string>', '<delimiter>')

Analyze 示例

func.split('PlaidCloud Lakehouse', ' ')
┌─────────────────────────────────────────┐
│ func.split('PlaidCloud Lakehouse', ' ') │
├─────────────────────────────────────────┤
│ ['PlaidCloud Lakehouse']          │
└─────────────────────────────────────────┘

SQL 语法

SPLIT('<input_string>', '<delimiter>')

返回类型

字符串数组。当输入字符串或分隔符为 NULL 时，SPLIT 返回 NULL。

SQL 示例

-- Use a space as the delimiter
-- SPLIT returns an array with two parts.
SELECT SPLIT('PlaidCloud Lakehouse', ' ');

split('PlaidCloud Lakehouse', ' ')|
----------------------------------+
['PlaidCloud','Lakehouse']        |

-- Use an empty string as the delimiter or a delimiter that does not exist in the input string
-- SPLIT returns an array containing the entire input string as a single part.
SELECT SPLIT('PlaidCloud Lakehouse', '');

split('databend cloud', '')|
----------------------------------+
['PlaidCloud Lakehouse']    |

SELECT SPLIT('PlaidCloud Lakehouse', ',');

split('databend cloud', ',')|
----------------------------------+
['PlaidCloud Lakehouse']    |

-- Use '  ' (tab) as the delimiter
-- SPLIT returns an array with timestamp, log level, and message.

SELECT SPLIT('2023-10-19 15:30:45  INFO  Log message goes here', '  ');

split('2023-10-19 15:30:45\tinfo\tlog message goes here', '\t')|
---------------------------------------------------------------+
['2023-10-19 15:30:45','INFO','Log message goes here']         |