On Sat, 29 Sep 2001, Tom Lane wrote:
> CREATE UNIQUE INDEX is fine as far as the database goes. Offhand it
> looks like the only extra thing a primary-key marker does is to define
> the default reference column for subsequent foreign-key references
> pointing at your table.
>
> If you want, you can reach into pg_index and set the indisprimary field
> after creating the index:
I stand corrected; there *is* something in the index itself which marks it
primary.
I'd guess that since the only time 'REFERENCES' is seen is when creating a
new table (and translated into hard-coded triggers after that), you should
be fine until you create a new table referencing the table whose primary
index you removed.
It's an inconsistency I would not feel comfortable with, so I'm glad I
learned about indisprimary. Is this documented anywhere?
--
Tod McQuillin
