Re: Is there a point to having both a normal gist index and an exclude index?

Bruno Wolff III <bruno@wolff.to> writes:
> ... I create both a normal gist index and an exclude index using the
> following:
> CREATE INDEX contains ON iplocation USING gist (network inet_ops);
> ALTER TABLE iplocation
>   ADD CONSTRAINT overlap EXCLUDE USING gist (network inet_ops WITH &&);

> But I am wondering if it is useful to have the normal gist index for
> finding netblocks containing a specific IP address, as it seems like the
> exclude index should be usable for that as well.

No, that manually-created index is completely redundant with the
constraint index.

            regards, tom lane