Re: How do i compare 2 postgresql instanses ? - Mailing list pgsql-admin

From Achilleas Mantzios
Subject Re: How do i compare 2 postgresql instanses ?
Date
Msg-id 200807081602.39336.achill@matrix.gatewaynet.com
Whole thread Raw
In response to How do i compare 2 postgresql instanses ?  (Potluri Srikanth <spotluri@ismartpanache.com>)
Responses Re: How do i compare 2 postgresql instanses ?  ("Michael Nacos" <m.nacos@gmail.com>)
List pgsql-admin
Στις Tuesday 08 July 2008 15:42:28 ο/η Potluri Srikanth έγραψε:
>
>  How do i compare 2 postgresql instanses ?
>  1) compare all objects including data in tables a) production box b)
> DR site ?
>  can you help me with the query, through which i can get all the
> object of each schema/database ?
>  Regards,
>  Srikanth k Potluri
>

you could write a little program (awk) to produce an sql file of the form:
select count(*) from airlines;
select count(*) from airports;
select count(*) from airticket;
select count(*) from airticketflights;
....
select count(*) from zzzobjects;

and then run it against the two databases, and diff the outputs.
If the outputs are not identical then you have 2 different databases,
otherwise you have to search more to know the answer.
So this technique can prove that yours DBs are *not* identical, but does not say anything
about the opposite.

--
Achilleas Mantzios

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