Re: [HACKERS] Enhancing PGSQL to be compatible with Informix SQL

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Rod Chamberlin <rod(at)querix(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] Enhancing PGSQL to be compatible with Informix SQL
Date: 2000-01-06 16:11:32
Message-ID: 200001061611.LAA13385@candle.pha.pa.us
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> However, if you need to know what value is being given to the
> inserted tuple, much the cleanest solution is to select nextval
> before inserting:
>
> SELECT nextval('sequenceobject');
> INSERT INTO table VALUES(... , value-you-just-got, ...);
>
> If you are always going to do that, then a trigger is a waste of cycles.

He can do:

INSERT INTO table VALUES(... , nextval('sequenceobject'), ...);

and currval() will get him the previous nextval() value.

--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026

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