Thanks,
I've already got it working. At least tests migrated from Jaybird pass.
As Jiri suggested I took a look at FB core, and found everything I've needed.


On 25 September 2015 at 16:08, Mark Rotteveel <m...@lawinegevaar.nl> wrote:
> On Thu, 24 Sep 2015 19:10:44 +0300, Геннадий Забула <zabulu...@gmail.com>
> wrote:
>> https://github.com/cincuranet/FirebirdSql.Data.FirebirdClient/pull/40
>> WIP about boolean support is here. Only Gds implemented for now.
>>
>> I have several question about Gds protocol. Where can I find
>> documentation about it? I need to know what should I write to send
>> boolean field to server.
>
> There is the Firebird Wire protocol documentation, but it doesn't contain
> all details and is mostly based on reverse engineering the protocol on a
> message level, not so much the content of the messages. You'll have more
> luck looking at the Firebird implementation, or other drivers like Jaybird.
>
> In any case, you need to encode a boolean as a single byte byte-array with
> the value 0 for false or 1 for true. See also:
>
> https://github.com/FirebirdSQL/jaybird/blob/master/src/main/org/firebirdsql/gds/ng/DefaultDatatypeCoder.java#L358
>
> For reading and writing you also need information on the blr calculations:
> https://github.com/FirebirdSQL/jaybird/blob/master/src/main/org/firebirdsql/gds/ng/wire/DefaultBlrCalculator.java
>
> And reading:
> https://github.com/FirebirdSQL/jaybird/blob/master/src/main/org/firebirdsql/gds/ng/wire/version10/V10Statement.java#L516
>
> And writing:
> https://github.com/FirebirdSQL/jaybird/blob/master/src/main/org/firebirdsql/gds/ng/wire/version10/V10Statement.java#L564
>
> I'd also suggest to take a look at the commit for Jaybird I linked in
> ticket, as that includes all the changes you need to get it working.
>
>> And also I have doubts about an implementation of reading boolean
> fields.
>
> See above.
>
> Mark
>
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