internal static async Task <int> StreamMany(this NpgsqlDataReader reader, Stream stream, CancellationToken token)
{
var count = 0;
var ordinal = reader.FieldCount == 1 ? 0 : reader.GetOrdinal("data");
await stream.WriteBytes(LeftBracket, token).ConfigureAwait(false);
if (await reader.ReadAsync(token).ConfigureAwait(false))
{
count++;
var source = await reader.GetStreamAsync(ordinal, token).ConfigureAwait(false);
await source.CopyStreamSkippingSOHAsync(stream, token).ConfigureAwait(false);
}
while (await reader.ReadAsync(token).ConfigureAwait(false))
{
count++;
await stream.WriteBytes(Comma, token).ConfigureAwait(false);
var source = await reader.GetStreamAsync(ordinal, token).ConfigureAwait(false);
await source.CopyStreamSkippingSOHAsync(stream, token).ConfigureAwait(false);
}
await stream.WriteBytes(RightBracket, token).ConfigureAwait(false);
return(count);
}
internal static async Task <int> StreamOne(this NpgsqlDataReader reader, Stream stream, CancellationToken token)
{
if (!await reader.ReadAsync(token).ConfigureAwait(false))
{
return(0);
}
var ordinal = reader.FieldCount == 1 ? 0 : reader.GetOrdinal("data");
var source = await reader.GetStreamAsync(ordinal, token).ConfigureAwait(false);
await source.CopyStreamSkippingSOHAsync(stream, token).ConfigureAwait(false);
return(1);
}
