On Thu, Sep 20, 2018 at 3:22 PM Andreas Kretschmer <andreas@xxxxxxxxxxxxxxx> wrote:
Hi,
the problem is there:
Am 20.09.2018 um 11:48 schrieb Durgamahesh Manne:
> Unique (cost=5871873.64..6580630.73 rows=7400074 width=89) (actual
> time=326397.551..389515.863 rows=3700000 loops=1)
> |
> | -> Sort (cost=5871873.64..5973124.65 rows=40500405 width=89)
> (actual time=326397.550..372470.846 rows=40500000 loops=1)
> |
> | Sort Key: sub_head."vchSubmittersCode", rec."vchFileName",
> rec."vchCusipFundIDSubFundID", rec."vchFundUnitPrice",
> sub_head."vchValuationDate", rec."vchAdvisorLabel" |
> | Sort Method: external merge Disk: 3923224kB
> |
Please check the execution time without DISTINCT.
Regards, Andreas
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hi
as per your request
i ran explain analyze query without distinct
+------------------------------------------------------------------------------------------------------------------------------------------------------+
| QUERY PLAN |
+------------------------------------------------------------------------------------------------------------------------------------------------------+
| Hash Join (cost=21.06..457723.28 rows=40500405 width=89) (actual time=0.429..6763.942 rows=40500000 loops=1) |
| Hash Cond: ((rec."vchSubmittersCode")::text = (sub_head."vchSubmittersCode")::text) |
| -> Seq Scan on table1 rec (cost=0.00..1822.66 rows=100001 width=80) (actual time=0.006..48.610 rows=100000 loops=1) |
| Filter: (NOT "bFetch") |
| Rows Removed by Filter: 4706 |
| -> Hash (cost=16.00..16.00 rows=405 width=11) (actual time=0.404..0.404 rows=405 loops=1) |
| Buckets: 1024 Batches: 1 Memory Usage: 26kB |
| -> Seq Scan on table2 sub_head (cost=0.00..16.00 rows=405 width=11) (actual time=0.004..0.326 rows=405 loops=1) |
| Filter: (NOT "bFetch") |
| Rows Removed by Filter: 375 |
| Planning time: 0.351 ms |
| Execution time: 8371.819 ms |
+------------------------------------------------------------------------------------------------------------------------------------------------------+
(12 rows)
