Re: [HACKERS] Allowing WAL fsync to be done via O_SYNC

[Tom Lane]

"Mikheev, Vadim" <[EMAIL PROTECTED]> writes:
> ... I would either
> use fsync as default or don't deal with O_SYNC at all.
> But if O_DSYNC is defined and O_DSYNC != O_SYNC then we should
> use O_DSYNC by default.

Hm.  We could do that reasonably painlessly as a compile-time test in
xlog.c, but I'm not clear on how it would play out as a GUC option.
Peter, what do you think about configuration-dependent defaults for
GUC variables?

                        regards, tom lane

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