UUIDs¶
is-uuid¶
Description |
Examples |
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Arguments:
VALUES(value-expression{1})
Boolean function that returns true if value is a UUID literal or value or if
it is a list, that the first element in the list is a UUID type value or literal
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["is-uuid", ["uuid"]]Returns true.
["is-uuid", "~u9f598f65-eea5-4906-a8f5-82f6d8e69726"]Returns true.
["is-uuid", "some-string"]Returns false.
["is-uuid", ["list", ["uuid"], "12345"]]Returns true.
["is-uuid", ["list", "12345", ["uuid"]]]]Returns false.
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uuid¶
Description |
Examples |
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Arguments:
VALUES(value-expression{0|1})
Create a new UUID object (version 4 ). It can optionally cast a single string or list of string UUID representations to
UUID objects. Any input that can’t be cast to a UUID object will be ignored.
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["uuid"]Returns a new random UUID object on the form “~u9f598f65-eea5-4906-a8f5-82f6d8e69726”.
["uuid", "abc98f65-ddf5-1234-a8f5-82f6d8e69726"]Returns a new UUID object cast from the input argument: “~uabc98f65-ddf5-1234-a8f5-82f6d8e69726”.
["uuid", ["list", "abc98f65-ddf5-1234-a8f5-82f6d8e601a8", 2, "9f598f65-eea5-4906-a8f5-82f6d8e69726"]]Returns two UUID objects: [“~uabc98f65-ddf5-1234-a8f5-82f6d8e69726”, “~u9f598f65-eea5-4906-a8f5-82f6d8e69726”]
Note that the mismatched input argument
2 is ignored.Warning This function is non-deterministic and will return a different value every time it is evaluated. Be aware that if the pipe is rewound or reset then it will produce a different output. Dependency tracking will also have a similar effect as to produce a different value when entities are reprocessed. Use this function with care and make sure that you are aware of the consequences of reprocessing entities. |