| From: | "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au> |
|---|---|
| To: | "Hornyak Laszlo" <kocka(at)tigrasoft(dot)hu>, <pgsql-advocacy(at)postgresql(dot)org> |
| Subject: | Re: [GENERAL] Need concrete "Why Postgres not MySQL" |
| Date: | 2003-08-22 06:40:32 |
| Message-ID: | 031601c36878$48f36220$2800a8c0@mars |
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| Lists: | pgsql-advocacy pgsql-general pgsql-hackers |
> Can someone explain me why is it usefull if the table created in
> transaction disapears on rollback?
Because then you can write big scripts like we do at work to install a new
feature in the live database. Such a script might create two new tables,
add columns to existing tables, drop and recreate some foreign keys, etc.
What you do is to test it you go 'begin;' and then execute the script. If
it all worked, commit, else rollback and fix the script. Repeat until you
get it right.
Chris
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