Thanks all, good to know. Again, apologies for being daft!
On Wed, Jan 19, 2022 at 2:21 PM Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
"David G. Johnston" <david.g.johnston@xxxxxxxxx> writes:
> On Wed, Jan 19, 2022 at 2:57 PM Wells Oliver <wells.oliver@xxxxxxxxx> wrote:
>> It does. In a cruel twist of fate, RDS parameter groups do not allow
>> "48GB" and want integer values.
> The system operates and calculates memory in binary per the referenced
> documentation so 6,291,456 (I double-checked this).
If you don't trust hand arithmetic, try
regression=# set effective_cache_size to '48GB';
SET
regression=# select setting from pg_settings where name = 'effective_cache_size';
setting
---------
6291456
(1 row)
regards, tom lane
Wells Oliver
wells.oliver@xxxxxxxxx
wells.oliver@xxxxxxxxx
