Thread: serial datatype changes for v7.3?
Hi,
I'm playing around with the CVS version and noticed a change from 7.2 in
regards to serial datatypes - they no longer automatically have an
index. Is this a deliberate thing? I did a search in the archives but
didn't come across mention of the change. A pointer to discussion on
this would be great.
CREATE TABLE author (
authorid SERIAL,
firstname VARCHAR(255),
surname VARCHAR(255),
dateofbirth DATE,
gender CHAR(1)
);
NOTICE: CREATE TABLE will create implicit sequence
'author_authorid_seq' for SERIAL column 'author.authorid'
CREATE TABLE
library=# \d author Table "public.author" Column | Type |
Modifiers
-------------+------------------------+-------------------------------------------------------------- authorid |
integer | not null default
nextval('public.author_authorid_seq'::text) firstname | character varying(255) | surname | character varying(255)
|dateofbirth | date | gender | character(1) |
library=# \di
No relations found.
Chris <pghackers@designmagick.com> writes:
> I'm playing around with the CVS version and noticed a change from 7.2 in
> regards to serial datatypes - they no longer automatically have an
> index. Is this a deliberate thing?
Yes. The release notes mention:
SERIAL no longer implies UNIQUE; specify explicitly if index is wanted
regards, tom lane
Tom Lane wrote: > Chris <pghackers@designmagick.com> writes: > > I'm playing around with the CVS version and noticed a change from 7.2 in > > regards to serial datatypes - they no longer automatically have an > > index. Is this a deliberate thing? > > Yes. The release notes mention: > > SERIAL no longer implies UNIQUE; specify explicitly if index is wanted What was the logic for this change? -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001+ If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania19073
Bruce Momjian <pgman@candle.pha.pa.us> writes: > Tom Lane wrote: >> Yes. The release notes mention: >> SERIAL no longer implies UNIQUE; specify explicitly if index is wanted > What was the logic for this change? See the thread back around 17 Aug: http://archives.postgresql.org/pgsql-hackers/2002-08/msg01336.php regards, tom lane
OK, we just need to make that clear in the release notes. I had forgotten about the change. --------------------------------------------------------------------------- Tom Lane wrote: > Bruce Momjian <pgman@candle.pha.pa.us> writes: > > Tom Lane wrote: > >> Yes. The release notes mention: > >> SERIAL no longer implies UNIQUE; specify explicitly if index is wanted > > > What was the logic for this change? > > See the thread back around 17 Aug: > http://archives.postgresql.org/pgsql-hackers/2002-08/msg01336.php > > regards, tom lane > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org > -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001+ If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania19073