protected override object ReadNext()
{
if (_nullMap.IsNull(CurrentField))
{
return(DBNull.Value);
}
NpgsqlRowDescription.FieldData field_descr = FieldData;
Int32 field_value_size = PGUtil.ReadInt32(Stream) - 4;
byte[] buffer = new byte[field_value_size];
PGUtil.CheckedStreamRead(Stream, buffer, 0, field_value_size);
char[] charBuffer = new char[UTF8Encoding.GetCharCount(buffer, 0, buffer.Length)];
UTF8Encoding.GetChars(buffer, 0, buffer.Length, charBuffer, 0);
try
{
return
(NpgsqlTypesHelper.ConvertBackendStringToSystemType(field_descr.TypeInfo, new string(charBuffer),
field_descr.TypeSize, field_descr.TypeModifier));
}
catch (InvalidCastException ice)
{
return(ice);
}
catch (Exception ex)
{
return(new InvalidCastException(ex.Message, ex));
}
}
protected override object ReadNext()
{
if (_nullMap.IsNull(CurrentField))
{
return(DBNull.Value);
}
NpgsqlRowDescription.FieldData field_descr = FieldData;
Int32 field_value_size = PGUtil.ReadInt32(Stream) - 4;
if (field_value_size >= 85000)
{
return(ReadLargeObject(field_descr, field_value_size));
}
byte[] buffer = new byte[field_value_size];
PGUtil.CheckedStreamRead(Stream, buffer, 0, field_value_size);
var str = UTF8Encoding.GetString(buffer);
try
{
return
(NpgsqlTypesHelper.ConvertBackendStringToSystemType(
field_descr.TypeInfo,
str,
field_descr.TypeSize,
field_descr.TypeModifier));
}
catch (InvalidCastException ice)
{
return(ice);
}
catch (Exception ex)
{
return(new InvalidCastException(ex.Message, ex));
}
}