[osamagirl69]

deadbeef-f00d-f00d-deadbeef isn't a valid UUID v4

Aside from missing a grouping in the middle, you need the version and variant bits, ie:

XXXXXXXX-XXXX-4XXX-VXXX-XXXXXXXXXXXX

where V is 8, 9, A, or B

searching for deadbeef-f00d-400d-a00d-deadbeef does return the expected matches

[taftster]

Your comment is needed as a parent / top-level for the discussion. A lot of people were confused about the 'V' portion in particular. Thanks for the insight.