On Mon, Mar 31, 2008 at 12:59 PM, Raymond O'Donnell <rod(at)iol(dot)ie> wrote:
> On 31/03/2008 20:51, mark wrote:
>
> > can you explain what the numbers mean in the EXPLAIN ANALYZE?
> > (cost=0.00..8.46 rows=1 width=1073) (actual time=0.094..0.161 rows=1
> > loops=1)
>
> As I understand it, "cost" signifies the planner's estimate of how long
> the query will take, in terms of disk page fetches. The "actual time" is
> in milliseconds.
it says actual time is 0.161 seconds or milliseconds.. but the total run
time is 11 seconds.. any ideas why this discrepancy?
> Index Scan using idx_uid on users (cost=0.00..8.46 rows=1 width=1073)
> (actual time=0.094..0.161 rows=1 loops=1)
> Index Cond: (uid = 738889333)
> Total runtime: 11479.053 ms