Re: Add NAMEDATALEN to PG_CONFIG?

On 05/15/2017 04:27 PM, Andy Johnson wrote:
> Is there a way to find NAMEDATALEN in a database, other than looking at
> the source? If not could it be added to the PG_CONFIG eventually?
>
> Andy Johnson
>

https://www.postgresql.org/docs/9.6/static/runtime-config-preset.html

"max_identifier_length (integer)

Reports the maximum identifier length. It is determined as one less
than the value of NAMEDATALEN when building the server. The default
value of NAMEDATALEN is 64; therefore the default max_identifier_length
is 63 bytes, which can be less than 63 characters when using multibyte
encodings.
"

So:

production=# show max_identifier_length ;
max_identifier_length
-----------------------
63

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com