From: Rob Sargent <robjsargent@gmail.com> Date: Friday, May 8, 2020 at 11:05 AM To: "Fehrle, Brian" <bfehrle@comscore.com> Cc: Adrian Klaver <adrian.klaver@aklaver.com>, "pgsql-general@postgresql.org" <pgsql-general@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
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.