Re: slow deletes on pgsql 7.4 - Mailing list pgsql-performance

From Junaili Lie
Subject Re: slow deletes on pgsql 7.4
Date
Msg-id 8d04ce990604260727r65d009d6pef436465701c4203@mail.gmail.com
Whole thread Raw
In response to Re: slow deletes on pgsql 7.4  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-performance
It was on my first email.
Here it is again:
MONSOON=# explain delete from scenario where id='1099';
                                  QUERY PLAN
------------------------------------------------------------------------------
 Index Scan using scenario_pkey on scenario  (cost= 0.00..3.14 rows=1 width=6)
   Index Cond: (id = 1099::bigint)
(2 rows)

MONSOON=# explain delete from scenario where id='1023';
                                  QUERY PLAN
------------------------------------------------------------------------------
 Index Scan using scenario_pkey on scenario  (cost=0.00..3.14 rows=1 width=6)
   Index Cond: (id = 1023::bigint)
(2 rows)
 
Thanks,
J

 
On 4/25/06, Tom Lane <tgl@sss.pgh.pa.us> wrote:
"Junaili Lie" <junaili@gmail.com> writes:
> ie. delete from scenario where id=3D'1023' is very fast, but delete from
> scenario where id=3D'1099' is running forever.

What does EXPLAIN show for each of those cases?

                       regards, tom lane

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