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Splits a string into an array of strings based on a specified delimiter, with the following behaviors:
  • If the delimiter is an empty string '', the result is an array containing the entire original input string as a single element.
  • If the delimiter is NULL, the string is split into individual characters, with one character per array element.

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Syntax

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Parameters

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Return Types

ARRAY(TEXT)

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Examples

Example The following code example splits the string stephen70|esimpson|ruthgill| at each | character and returns the resulting array as nicknames:

Rows: 1Execution time: 5.37ms

Example The following code example calls STRING_TO_ARRAY with an empty delimiter, producing an array containing a single element which contains the input text:

Rows: 1Execution time: 7.91ms

Example The following example calls STRING_TO_ARRAY with NULL as the delimiter, splitting the text into individual characters:

Rows: 1Execution time: 5.72ms