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Install GRIDSQL 2.0  XML

Forum Index » GridSQL - General
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sirisha_s

New member

Joined: 27 Apr 2010 06:15:25
Messages: 3
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Hi,

I have installed Gridsql 2.0 . I am trying to test the performance of COPY with respect to Gridsql 1.0.

Please find below the loading time:

grid 1.0
----------
GridSQL -> copy table1 from '/home/postgres/load_test/table1' delimiter ',' CSV;
OK
Response time: 6m 37s 572ms Total time: 6m 37s 572ms

grid 2.0
----------
GridSQL -> copy table1 from '/home/postgres/load_test/table1' delimiter ',' CSV;
OK
Response time: 6m 48s 159ms Total time: 6m 48s 159ms

the file sixe is 9.2 GB and the number of records are 19000000.

I haven't found any significance improvement in the performance of COPY.

Can you please explain me why is it so.

Thanks.

Mason_S

Senior member

Joined: 1 Apr 2008 09:03:08
Messages: 380
Offline

In version 2.0, COPY TO (export) performance was improved, not COPY FROM (import), as was your case.

The 2.0 changes also results in improved performance of row-shipping for cross-node joins.

Regards,

Mason

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