I've noticed a difference in behaviour between a server running version 6.x and one running 7.2.1 in use of indexes with LIKE.
With an index on foo, WHERE foo LIKE 'bar%' uses the index (as I would expect it to) on the 6.x box, but uses a sequential scan (really slow) on the 7.2.1 box. It's possible that I've set (or failed to set) a run-time parameter that controls the behaviour, but I don't know what that might be. ANALYZEing the table doesn't modify the behaviour. I can't find any mention of this in the documentation -- any pointers would be appreciated. If the above doesn't ring any bells, I'll put together an example. Many thanks Julian Scarfe ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
