Andrey Zhidenkov <andrey.zhiden...@gmail.com> writes:
> I have a table (registry.entry) which has ~ 100 inherited tables. This
> is a master table and it's empty:

As long as it's empty, a seqscan should be essentially free.  Don't
worry about it.  And definitely don't create indexes, that will just
add cost.

                        regards, tom lane


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