Re: [HACKERS] SERIAL data type

From: darcy(at)druid(dot)net (D'Arcy J(dot)M(dot) Cain)
To: t-ishii(at)sra(dot)co(dot)jp
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] SERIAL data type
Date: 1998-09-12 02:14:40
Message-ID: m0zHfCy-00006FC@druid.net
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Thus spake Tatsuo Ishii
> o explicit insertion to the serial column sets the value specified.
> This is good. However, next implicit insertion results in that
> previous value from the sequence + 1 is set.
>
> create table t (c text, i serial);
> insert into t values('a');
> insert into t values('b',100);
> insert into tvalues('c');
> select * from t;
>
> a 1
> b 100
> c 2
>
> This seems a little bit unnatural for me. may be i of the thrid row
> should be 101?

Perhaps it should not be possible to specify a value for serial types.
Make it always use the next value no matter what is supplied. Could
make dump and restore a problem of course but I can think of some
situations where it would make the programming simpler.

--
D'Arcy J.M. Cain <darcy(at){druid|vex}.net> | Democracy is three wolves
http://www.druid.net/darcy/ | and a sheep voting on
+1 416 424 2871 (DoD#0082) (eNTP) | what's for dinner.

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