On Mon, Mar 31, 2008 at 12:59 PM, Raymond O'Donnell <[EMAIL PROTECTED]> 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
