> In general pattern of generic WAL usage is following.
>
> 1) Start using generic WAL: specify relation
M-m, what about extensions which wants to use WAL but WAL record doesn't
connected to any relation? For example, transaction manager or kind of FDW.
>
> GenericXLogStart(index);
>
> 2) Register buffers
>
> GenericXLogRegister(0, buffer1, false);
> GenericXLogRegister(1, buffer2, true);
>
> first argument is a slot number, second is the buffer, third is flag indicating
> new buffer
Why do we need a slot number? to replace already registered buffer?
--
Teodor Sigaev E-mail: teodor@sigaev.ru
WWW: http://www.sigaev.ru/
