parameterFormatCodes

The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters. The parameter format codes. Each must presently be zero (text) or one (binary).

var parameterFormatCodes: [PostgresFormat]