Re: Taking lot time

On 11/25/2015 07:46 AM, Ramesh T wrote:

First, please take a look at this:

https://en.wikipedia.org/wiki/Posting_style

>
> Hi All,
> 9.3 version using pgadmin3
>
> Query like below,20 columns fetching
> SELECT col1,col2,col3,...col.20

When this thread started you said you where selecting 20 rows.
Which is correct 20 rows or columns and if columns how many rows?

> FROM detail i,
> adjdetail ia,
> WHERE i.trans_id = ia.detail_id AND
> (i.event = ANY (ARRAY[21, 22, 3, 5]))
> created indexes on where clause declared columns.
>
> Taking a lot of time above ..?any help apprectiated !.

A lot of time being?

Where are you measuring this time?
Remember populating a GUI with lots of data can take time.

>
> I have total 4 gb ram,i changed below in postgres.conf
>
> shared_buffers--1024mb
> temp_bufffers=8mb
> work_mem=200mb
> maintanace_work_mem=500mb
> seq_page_cost = 1.0
> random_page_cost = 5.0
> effective_cache_size = 1024MB
>
>
>
> On Wed, Nov 18, 2015 at 11:12 PM, Adrian Klaver
> <adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>> wrote:
>
> On 11/17/2015 04:18 AM, Ramesh T wrote:
>
> the query is big it's selecting 20 rows from two table like i
> mentioned
> above exaplain analyze
>
> what should i do..?any help
>
>
> Please do not top post.
>
> I must be missing a post, as I see no explanation of what the query
> is doing.
>
>
> On Wed, Nov 4, 2015 at 4:27 AM, Adrian Klaver
> <adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
> <mailto:adrian(dot)klaver(at)aklaver(dot)com
> <mailto:adrian(dot)klaver(at)aklaver(dot)com>>> wrote:
>
> On 11/03/2015 06:42 AM, Ramesh T wrote:
>
> I have a Query it taking a lot of time to fetch results
> so,explain query gave
>
> "Hash Join (cost=55078.00..202405.95 rows=728275
> width=418)"
> " Hash Cond: (itd.tran_id = iad._adj__id)"
> " -> Seq Scan on inv_detail itd (cost=0.00..40784.18
> rows=731029
> width=95)"
> " Filter: (event_type = ANY
> ('{21,22,3,5}'::integer[]))"
> " -> Hash (cost=20590.78..20590.78 rows=610978
> width=331)"
> " -> Seq Scan on inv_adj iad (cost=0.00..20590.78
> rows=610978
> width=331)"
>
> Can you Please let me know wt happen in query..?wt
> should i do..
>
>
> And the query is?
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
> <mailto:adrian(dot)klaver(at)aklaver(dot)com
> <mailto:adrian(dot)klaver(at)aklaver(dot)com>>
>
>
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
>
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com