Обсуждение: Taking lot time
And in addition to providing the actual query, the structure (and indexes) of all tables involved) are needed.
On Tue, Nov 3, 2015 at 5:59 PM, Rob Sargent <robjsargent@gmail.com> wrote:
I could be way off base (again) but I think the first thing you do is supply the query (sql).On 11/03/2015 07:42 AM, Ramesh T wrote:I have a Query it taking a lot of time to fetch resultsso,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..
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Melvin Davidson
I reserve the right to fantasize. Whether or not you
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And as always, what is the O/S and the version of PostgreSQL??????????????????
On Tue, Nov 17, 2015 at 7:18 AM, Ramesh T <rameshparnanditech@gmail.com> wrote:
the query is big it's selecting 20 rows from two table like i mentioned above exaplain analyzewhat should i do..?any helpOn Wed, Nov 4, 2015 at 4:27 AM, Adrian Klaver <adrian.klaver@aklaver.com> wrote:And the query is?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..
--
Adrian Klaver
adrian.klaver@aklaver.com
--
Melvin Davidson
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you.
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you.
Adrian,
He never stated what the O/S is. I strongly suspect that he is using PgAdmin to connect to a remote server, which adds another degree of complication. So at the very least, we also need to know if the server is local or remote and what the O/S is. Plus, as you have requested before, exactly what time is "a long time"?On Wed, Nov 25, 2015 at 3:50 PM, Adrian Klaver <adrian.klaver@aklaver.com> wrote:
On 11/25/2015 07:46 AM, Ramesh T wrote:
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 !.
Realized my previous post was not really helpful. What I should have said is below.
To get a useful answer you will need to supply a complete(from one run of the query) set of information for the problem you are experiencing.
So:
1) The complete definitions for the tables involved in the query, including FKs, triggers, etc.
2) The query you are running.
3) The EXPLAIN ANALYZE for said query
4) The number of rows returned from the query.
5) The procedure you used to getting the time value and where it was applied(psql, pgAdmin, etc).
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 <mailto: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>
<mailto: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>
<mailto:adrian.klaver@aklaver.com
<mailto:adrian.klaver@aklaver.com>>
--
Adrian Klaver
adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>
--
Adrian Klaver
adrian.klaver@aklaver.com
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Melvin Davidson
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you.
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you.