I have a very simple table set:
Transactions:
transaction_key PRIMARY KEY
client TEXT
time TIMESTAMP
LineItems
transaction_key INT
amount INT
A query to print the contents of transactions with a sum of the line
item amounts provides a very suboptimal result. The problem seems to be
the GROUP
That's a whole lot faster. The query on 40 msa_codes that took
7 minutes, now only takes 10 seconds.
Thanks a lot.
At 11:54 AM 11/19/2002 -0500, Tom Lane wrote:
Ellen Cyran <[EMAIL PROTECTED]> writes:
> Here is the explain analyze:
> Group (cost=637.18..696.52 rows=593 width=22) (actual
time
Ellen Cyran <[EMAIL PROTECTED]> writes:
> Here is the explain analyze:
> Group (cost=637.18..696.52 rows=593 width=22) (actual time=982.67..67581.85
>rows=435 loops=1)
>-> Sort (cost=637.18..637.18 rows=5934 width=22) (actual time=833.27..844.78
>rows=6571 loops=1)
Well, we don't have to
I had to modify your query somewhat, but the one below that is pretty much
the same took
about 12 seconds so once I run it on five years it will take just as
long. Thanks for the
suggestion though.
select distinct on (b.msa_code, b.sic, b.own, b.ind_div)
b.msa_code, b.sic, b.own, b.ind_div, y19
I have vacuum analyzed recently. I do it after a large number of inserts
and after indexing. This database is in the development stages so there is
a lot of data loading at this time. We are also using 7.2.3. Here is
the explain analyze:
Group (cost=637.18..696.52 rows=593 width=22) (actual
Ellen Cyran <[EMAIL PROTECTED]> writes:
> Is there any way to make this query faster? I have indexes on year,
> msa_code, and sic. I've also tried it with
> an index on the combined group by columns. I've made both sort_mem and
> shared_buffers bigger, but still this query
> takes 40 seconds w
On Mon, 18 Nov 2002, Ellen Cyran wrote:
> Is there any way to make this query faster? I have indexes on year,
> msa_code, and sic. I've also tried it with
> an index on the combined group by columns. I've made both sort_mem and
> shared_buffers bigger, but still this query
> takes 40 seconds wh
Is there any way to make this query faster? I have indexes on year,
msa_code, and sic. I've also tried it with
an index on the combined group by columns. I've made both sort_mem and
shared_buffers bigger, but still this query
takes 40 seconds when I select 4 msa_codes and 7 minutes when I sele
