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Re: [HACKERS] DROPping tables with SERIALs

From: Zeugswetter Andreas IZ5 <Andreas(dot)Zeugswetter(at)telecom(dot)at>
To: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] DROPping tables with SERIALs
Date: 1998-11-30 10:08:28
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Lists: pgsql-hackers
	>>> Another question is whether a SERIAL field should automatically
	>>> UNIQUE (ie, create a unique index on it to prevent mistakes in
	>>> insertion of values for the field).
	>> Once again - I would like to see SERIAL compatible with
	>> SERIAL/IDENTY in other RDBMSes.
	>Yes, and?  What do the other ones do?

In Informix you need to create the unique index explicitly. I like this
because it keeps
things flexible. The unique constraint could be on a compount key.



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