union
FEEL built-in function · FEEL list functions
union(list…)
Returns all elements of the argument lists with duplicates removed, preserving first-seen order.
Parameters
| Parameter | Type | Description |
|---|---|---|
| list | list | two or more lists |
Examples
union([1, 2], [2, 3])
[1, 2, 3]
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Part of FEEL list functions: how positions, nulls and single values behave across all of them, aggregating over lists of contexts, and every function side by side.
Related functions
Defined by the OMG DMN 1.6 specification, chapter 10.3.4 (built-in functions).