public void DataType()
{
using (var conn = OpenConnection())
{
conn.ExecuteNonQuery("CREATE TEMP TABLE data (foo INTEGER)");
using (var cmd = new NpgsqlCommand("SELECT foo,8::INTEGER FROM data", conn))
using (var reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly))
{
var columns = reader.GetColumnSchema();
Assert.That(columns[0].DataType, Is.SameAs(typeof(int)));
Assert.That(columns[1].DataType, Is.SameAs(typeof(int)));
}
}
}