Extended Name Attributes

Hi

There’s definitely something I do not understand - but please help me.
I would like to use the name attribute in a table together with jFiles2.
Driver: MSSQL
External Name: enabledForSupplier|BOOLEAN

But it ends up that the field looks like this in SQL: [enabledForSupplier | BOOLEAN]

What am I doing wrong?

Have tried all possible combinations with uppercase / lowercase letters and different spaces.