SPLIT (Lakehouse v1)

Splits a string using a specified delimiter and returns the resulting parts as an array.

See also: SPLIT_PART

Analyze Syntax

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

Analyze Examples

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

SQL Syntax

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

Return Type

Array of strings. SPLIT returns NULL when either the input string or the delimiter is NULL.

SQL Examples

-- 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']         |