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Probably a good idea to add a bit about serial, and sequences. This tends to confuse mysql people like myself. I for instance don't know what happens when I c
by jcampbell1 14y ago
Probably a good idea to add a bit about serial, and sequences. This tends to confuse mysql people like myself.
I for instance don't know what happens when I copy or dump and restore a postgres table that relies on a sequence. Mysql auto-magically takes care of it by saving the next auto increment id in table dump or copy.
- joevandyk 14y agoIf you use pg_dump to dump/restore the table, it will reset the sequence to the correct value. Look at the dump file, there will be a setval of the sequence.
- jeltz 14y agoAgreed, especially since sequences is a more powerful tool with a wider use than auto increment. For example you can use the same sequence for multiple tables, or use them without being connected to any table.