The GUID type is non-Data Model type that represents a string of randomly generated characters that acts as a unique identifier. It is NOT part of the data model becuase of the resons profided in this github issue: #1294.
Fun Facts
- It is astronomically low to get a duplicate GUID (many thousands of years worth of time).
- All characters in the string are randomly generated, except for one character that has a
4. This represents the 4th version of the GUID system.
See Also
- Wikipedia's definition on Universally Unique Identifier
- Microsoft's Documentation on the GUID Data Type