"Thomas A. Lowery" <[EMAIL PROTECTED]> writes:
> Can I force the use of an index?

Try "set enable_seqscan = off".  But on the basis of what you've shown,
it's not obvious that an indexscan will be faster.  Is the planner's
estimate that 139654 rows will match f_state = 'PA' in the right
ballpark?

                        regards, tom lane

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