> I'm having performance issues with a table consisting of 2,043,133
> The
> schema is:

> locality_1 has 16650 distinct values and locality_2 has 1156 distinct
> values.

Just so you know I have a 2GHz p4 workstation with similar size (2M
rows), several keys, and can find and fetch 2k rows based on 20k unique
value key in about 60 ms. (.06 seconds).


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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not

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