[GENERAL] Fedora core 3 is slower than Fedora core 1?

in Fedora core 1: abc=# select version();explain select * from abc;select count(*) from abc; version -

[GENERAL] Insert may fail if i create a primary key on the oid column?

I create a primary key on the "oid" column. The oid is generate by system itself. The oid may overlap, when this happen, this operation may fail? ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://archives