## Igor Korot (ikorot01@gmail.com):
> draft=# SELECT n.nspname, c.oid FROM pg_constraint c, pg_namespace n
> WHERE c.oid = n.oid AND c.conname = 'leagues_pkey';
Because you're joining on the wrong column, see 3rd row of
https://www.postgresql.org/docs/current/catalog-pg-constraint.html
Regards,
Christoph
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