QGIS 2.6.1-Brighton in Ubuntu 14.04
I have a polygon layer loaded from a PostGIS query with int4 values that range from 0 to 3000. When I try using the Random Points tool on this layer, none of the integer columns appear in the dropdown list for "Use value from input field." When I divided the values in a column by 10 to diminish their range (while still using integers) I still could not run the function.
I saved the query layer to file and reopened it and this still did not resolve the issue.