From: | Ron <ronljohnsonjr(at)gmail(dot)com> |
---|---|
To: | pgsql-general(at)lists(dot)postgresql(dot)org |
Subject: | Re: need SQL logic to find out way's to Implement check sum to validate table data is migrated correctly |
Date: | 2023-10-27 10:21:11 |
Message-ID: | 14a36dc0-8796-49f4-bf37-535bfe3f0b74@gmail.com |
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Lists: | pgsql-general |
OP might be referring to migrating from, say, Oracle to Postgresql when
oracle_fdw is not available.
On 10/27/23 04:34, Thiemo Kellner wrote:
>
> Hi
>
> Why do you need checksums? Can you not employ a full outer join? My though
> behind this is that checksumming is quite costly cpuwise and you have to
> fiddle with each and every relevent column, be it as part of the checksum
> string be it as part of the joiner. The joiner would have the advantage
> that you could, if you wanted, also implement logic to tell you precisely
> in which columns the difference is encountered.
>
> Kind regards
>
> Thiemo
>
> Am 27.10.2023 um 10:56 schrieb Y_esteembsv-forum:
>> Hi
>> Need SQL logic/different approach method's to find out way's
>> a) to Implement check sum to validate table data is migrated correctly
>>
>> Any guidance
>>
>> Regards
>> Bharani SV
--
Born in Arizona, moved to Babylonia.
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