"Ed L." writes:
> Why is this? What determines if a unique index will also have a row in
> pg_constraint?
If you made it with constraint syntax, it'll have such a row.
If you made it with CREATE INDEX, not.
regards, tom lane
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I've been looking at unique indices in a PostgreSQL 8.3.x cluster. Some
unique indices clearly have a corresponding row in pg_constraint, while
other unique indices appear to have no corresponding row in
pg_constraint at all.
Why is this? What determines if a unique index will also have a
