CHAR(36) columns are unconditionally regarded as GUID

For example:

CREATE TABLE tbs (id INT, bs CHAR(36));

INSERT INTO tbs VALUES(1,'anything');    -- Ok

SELECT * FROM tbs;   -- Error

This raised an error message saying:

Guid must contain 32 digits and 4 dashes

(xxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx)

This is not documented and may occur unexpectedly when column definitions are made via Discovery.

Note: This does not occur when using VARCHAR(36).