Current CVS sources are giving silly values for the cost fields of
EXPLAIN output:
treetest=> explain select * from marketorderhistory order by ordertime;
NOTICE: QUERY PLAN:
Sort (cost=??????? size=1610612736 width=1081364283) -> Seq Scan on marketorderhistory (cost=??????? size=1610612736
width=108136
4283)
EXPLAIN
treetest=> explain select * from marketorderhistory where ordertime = 'now';
NOTICE: QUERY PLAN:
Index Scan using marketorderhistory_ordertime_in on marketorderhistory (cost=??
????? size=-536870912 width=1074351372)
EXPLAIN
Looks the same before and after VACUUM, btw.
regards, tom lane
