Bruce Momjian <> writes:
> I just tested from a standalone backend:
>       backend> select pow(10::numeric, 131071) + 1
> and got 4095 zeros and no trailing '1' (wrong), so it isn't psql, it
> must be something in the backend.

If the backend is truncating the result length, I don't see why psql
would decide it needs 12K dashes for the header.  There's something
awfully fishy going on in your machine.

Try something like

regression=# select length((pow(10::numeric, 131071))::text);
(1 row)

If that gives the right answer then the NUMERIC code is off the hook,
and what you've got is a strange limitation on output column length.

                        regards, tom lane

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