On 10/31/26 3:04 PM, Igor Korot wrote:
Hi, Ron,

On Sat, Oct 31, 2026 at 1:24 AM Ron Johnson <[email protected]> wrote:

Join pg_attribute.attrelid to pg_class.oid and thus you have the table's 
relnamespace value.

 From the docs:

[quote]
relnamespace oid (references pg_namespace.oid)

The OID of the namespace that contains this relation
[/quote]

I have a schema name as a string.

Should I cast that value to something when I write
"pg_class.relnamespace = 'public'"?

Take a look at this link below:

https://www.postgresql.org/docs/current/datatype-oid.html

It will make your like easier.

So:

select relname from pg_catalog.pg_class where relname = 'cell_per' and relnamespace = 'public'::regnamespace;

relname
----------
 cell_per


Thank you.


On Sat, Oct 31, 2026 at 1:34 AM Igor Korot <[email protected]> wrote:

Hi,
How do I add schema name to

[code]
SELECT attnum FROM pg_attribute WHERE attrelid = 'my_table_name';
[/code]

Thank you.




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