/// <summary>
/// Checks if a database command is a Npgsql command and converts.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>converted NpgsqlCommand</returns>
public static NpgsqlCommand CheckIfNpgsqlCommand(DbCommand command) {
command.AssertIsNpgsqlCommand();
return (NpgsqlCommand)command;
}