From: Rob Sargent <robjsarg...@gmail.com>
Date: Friday, May 8, 2020 at 11:05 AM
To: "Fehrle, Brian" <bfeh...@comscore.com>
Cc: Adrian Klaver <adrian.kla...@aklaver.com>, "pgsql-gene...@postgresql.org" 
<pgsql-gene...@postgresql.org>
Subject: Re: Thoughts on how to avoid a massive integer update.


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   Could you show an example table relationship?

It’s a simple one-to-many relationship:
*Info_table*
info_table_sid integer


*data_table*
data_table_sid integer,
info_table_id integer references info_table(info_table_sid),




Right, and now you wish to change the values in the referenced table 
(info_table.info_table_sid) correct?


Correct. If info_table.info_table_sid = 123 and many rows in data_table point 
to it, the ID needs to be changed to 456 in the info_table, as well as all the 
columns in the data_table.

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