**History**: The organization of this table was different for the students who signed up for the MITx prototype phase in the spring of 2012, than for those who signed up afterwards. The column descriptions that follow detail the differences in the demographic data gathered.
**History**: ``country`` and ``city`` added January 2014. The organization of this table was different for the students who signed up for the MITx prototype phase in the spring of 2012, than for those who signed up afterwards. The column descriptions that follow detail the differences in the demographic data gathered.
----
id
...
...
@@ -527,7 +531,28 @@ allow_certificate
-------------------
Set to 1 (true).
**History**: Prior to 10 Feb 2014, this field was set to 0 (false) if log analysis revealed that the student was accessing the edX site from a country that the U.S. had embargoed. This restriction is no longer in effect, and on 10 Feb 2014 this value was changed to 1 for all users.
**History**: Prior to 10 Feb 2014, this field was set to 0 (false) if log
analysis revealed that the student was accessing the edX site from a country
that the U.S. had embargoed. This restriction is no longer in effect, and on
10 Feb 2014 this value was changed to 1 for all users.
----------------------
country
----------------------
Stores a two-digit country code based on the selection made by the student
during registration. Set to an empty string for students who do not select a
country.
**History**: Added in Jan 2014, but not implemented until 18 Sep 2014. Null
for all user profiles created before 18 Sep 2014.
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city
------
Not currently used. Set to null for all user profiles.
**History**: Added in Jan 2014, not yet implemented.