> 2011/11/11 Mateusz Łoskot <
mateusz@loskot.net>
>>
>> Considering query for binary data stored directly in tables
>> using libpq API, I'm trying to understand what is the difference
>> between specifying binary format in functions like
>> PQexecParams and use of BINARY CURSOR.
>>
>> For example, with query like this:
>>
>> SELECT large_image FROM tbl;
>>
>> where large_image is a custom type,
>> is there a big difference between binary format specified
>> to libpq and use of BINARY CURSOR?
>> Is it client-side binary vs server-side binary processing?
>>
>> Simply, I'd like to avoid textual<->binary conversions at any stage.
>>
>> (Endianness is not an issue here.)
>>
>> Best regards,
>
> "...The concept of a binary cursor as such is thus obsolete when using
> extended query protocol — any cursor can be treated as either text or
> binary. ..." from
>
http://www.postgresql.org/docs/9.1/static/sql-declare.html