[2008-04-10 09:45:47] <RhodiumToad> dim: some of that time will be overhead, too; the real stress-test for gist index lookups is to have them in the inner path of a nestloop join
[2008-04-10 09:47:27] <RhodiumToad> create a large table of values to look up, don't index it, and do  select * from largetable join prefixes on (prefixes.prefix @> largetable.value)
[2008-04-10 09:47:55] <RhodiumToad> the expected plan is a seqscan on largetable in the outer path, and a gist index lookup on prefixes in the inner path