pgsql@mohawksoft.com writes:
> -> Index Scan using rt1_zipr, rt1_zipl on rt1 (cost=0.00..121893.93
> rows=30835 width=302)
> Index Cond: ((zipr = 2186) OR (zipl = 2186))
> zipl | 925 |
> zipr | 899 |
Those n_distinct values for zipl and zipr seem aberrant --- too low
compared to the estimated rowcount you're showing. What are the
true figures? Also, how about some EXPLAIN ANALYZEs and not just
EXPLAINs?
regards, tom lane