Re: pgsql: Make WAL segment size configurable at initdb time.

On Thu, Sep 20, 2018 at 06:23:54PM -0700, Andres Freund wrote:
> 16*M*B, right?  If so, that's normal - pg_settings just reports the
> values in the underlying unit - which is XLOG_BLCKSZ, compile-time
> defaulting to 8KB. 8192 * 2048 = 16MB.  That's the same in various other
> settings.

Would it bring less confusion if we append something like "When querying
pg_settings"?  I can see David's point the current phrasing is
confusing: we don't know if this comes from pg_settings or from SHOW.
It obviously refers to the former, but one can understand that it refers
to the latter.

A second parameter in config.sgml where this formulation is used is
segment_size.
--
Michael