public void NumericScale()
{
using (var conn = OpenConnection())
{
conn.ExecuteNonQuery("CREATE TEMP TABLE data (a NUMERIC(8,5), b NUMERIC, c INTEGER)");
using (var cmd = new NpgsqlCommand("SELECT a,b,c,8.3::NUMERIC(8,5) FROM data", conn))
using (var reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly))
{
var columns = reader.GetColumnSchema();
Assert.That(columns[0].NumericScale, Is.EqualTo(5));
Assert.That(columns[1].NumericScale, Is.Null);
Assert.That(columns[2].NumericScale, Is.Null);
Assert.That(columns[3].NumericScale, Is.EqualTo(5));
}
}
}