Re: [PERFORM] postgresql tuning with perf
| От | Purav Chovatia |
|---|---|
| Тема | Re: [PERFORM] postgresql tuning with perf |
| Дата | |
| Msg-id | CADrzpjFY3tSdrGwrOMSX7B6bPNY22xnkCjRDMmVG3Fsi+SCh2w@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: [PERFORM] postgresql tuning with perf (legrand legrand <legrand_legrand@hotmail.com>) |
| Ответы |
Re: [PERFORM] postgresql tuning with perf
|
| Список | pgsql-performance |
Hi Pascal,
Do you mean the sample program that acts as the application, do you want me to share that? I can do that, but I guess my post will get blocked.
Yes, c1 is the PK. Pls see below:
bmdb=# desc dept_new
Table "public.dept_new"
Column | Type | Modifiers
--------+---------------+-----
c1 | numeric(10,0) | not null
c2 | numeric(10,0) |
.
.
.
.
.
c205 | numeric(10,0) |
Indexes:
"dept_new_pkey" PRIMARY KEY, btree (c1)
bmdb=#
We dont analyze after loading the table. But I guess thats required only if the query plan is in doubt, lets say its doing a full table scan or alike, isnt it? That is not the case. The query is using PK index but it just seems to be slow.
Thanks
On 24 October 2017 at 01:59, legrand legrand <legrand_legrand@hotmail.com> wrote:
Hi,
could you providence the code used with PG ?
Has table dept_new an index/pk on c1 ?
Do you analyze this table after loading it ?
Regards
PAscal
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