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Generate UUID

The GENERATE-UUID directive generates a universally unique identifier (UUID) of the record. NOTE: Recommended to use with Wrangler version 4.4.0 and above due to an important bug fix CDAP-17732.

Syntax

generate-uuid <column>

The <column> is set to the UUID generated for the record.

Usage Notes

The GENERATE-UUID directive generates a type 4, pseudo-randomly generated UUID. The UUID is generated using a cryptographically strong pseudo-random number generator.

Example

Using this record as an example, where you would like to generate a random identifier for the record to uniquely identify it:

{
  "x": 1,
  "y": 2
}

Applying this directive:

generate-uuid uuid

would result in a record similar to this (the value of uuid will vary):

{
  "x": 1,
  "y": 2,
  "uuid": "57126d32-8c91-4c00-9697-8abda450e836"
}