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From Ramesh T
Subject Re: Taking lot time
Date
Msg-id CAK8Zd=s2aTC0=uOoVi4KSBbEio3rodYzZZqbkGXjOtz1O4+J8g@mail.gmail.com
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In response to Re: Taking lot time  (Adrian Klaver <adrian.klaver@aklaver.com>)
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Re: Taking lot time
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Hi All,
        9.3 version using pgadmin3 

Query like below,20 columns fetching
 SELECT col1,col2,col3,...col.20
                                   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 !.

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.klaver@aklaver.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.klaver@aklaver.com
 <mailto:adrian.klaver@aklaver.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.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>




--
Adrian Klaver
adrian.klaver@aklaver.com

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