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I’m trying to look up the columns in a constraint in pg_catalog (of PostgreSQL 8.0.x). I can’t figure out how to “join” the elements of the array that lists the ‘attnum’s of the columns in the table to the ‘conkey’ array in the constraint definition (see http://www.postgresql.org/docs/8.0/static/catalog-pg-constraint.html and http://www.postgresql.org/docs/8.0/static/catalog-pg-attribute.html ).
The problem is in the last line of this query:
SELECT a.attname AS name FROM pg_catalog.pg_class t, pg_catalog.pg_attribute a WHERE t.oid = 3626912 AND a.attrelid = t.oid AND a.attnum = any (select conkey FROM pg_catalog.pg_constraint WHERE oid = 3708025)
I have tried all the variations on this syntax that I can think of, after plowing through all the documentation of arrays I can find in http://www.postgresql.org/docs/8.0/static/index.html, and none of them work.
Any ideas?
~ TIA ~ Ken |
