AllowsDBNull property always null on columns returned from NpgsqlDataReader.GetColumnSchema() #2
Description
I'm using the NpgsqlDataReader's GetColumnSchema() method to get metadata associated with my query response, and I noticed that every column's AllowDBNull property is always null. I'm including a sample app that creates and queries a test table with both nullable and non-nullable columns to demonstrate this behavior.
The rest of the NpgSqlDbColumn object appears to have valid data including the column name and data type info, and so I'm guessing that the AllowDBNull property should have a valid boolean value.
