On Thu, 01 Feb 2001 09:47, Jie Liang wrote:
> e.g.
>
> create function foo(_int4) returns int2 as'
> declare
> a _int4 alias for $1;
> i int:=1;
> begin
> while a[i] loop
> i:=i+1;
> end loop;
> return i-1;
> end;
> ' language 'plpgsql';
>
> you can call it by:
>
> select foo('{1232131,12312321,34
Hi all !
I'm working with PostgreSQL 7.0.2, and I may have a little problem : my database
seems to be corrupted.
When I connect to database (with psql, e.g.), I receive the message 'FATAL 1:
BufTableDelete: BufferLookup table corrupted'.
If I insist, I can enter the database. But then, a coup
I restarted Postmaster and it works now ! Thanks.
The only thing I can say about it is that I was in the middle of a transaction
executed in background, using 100% CPU, and I killed the postmaster forked for
my transaction (I work under HP-UX). Maybe I shouldn't do this... :)
___
B. Ca
Blaise Carrupt <[EMAIL PROTECTED]> writes:
> When I connect to database (with psql, e.g.), I receive the message
> 'FATAL 1: BufTableDelete: BufferLookup table corrupted'.
Try restarting the postmaster. AFAICS your problems are just with
datastructures in shared memory, so a postmaster restart s
When doing a subselect with NOT IN, as in
SELECT name
FROM customer
WHERE customer_id NOT IN (
SELECT customer_id
FROM salesorder
);
(from Bruce Momjian's book)
I get no rows if the result column returned by the subselect
contains NULL values. It works as expected if I remove the NULL values
fr
Mr. Joerdens,
> I get no rows if the result column returned by the subselect
> contains NULL values. It works as expected if I remove the NULL values
> from the result set. Is this behaviour correct and if so, why?
I can see how that bug would happen. You may want to forward your
e-mail to pgsq
> When doing a subselect with NOT IN, as in
>
> SELECT name
> FROM customer
> WHERE customer_id NOT IN (
> SELECT customer_id
> FROM salesorder
> );
>
> (from Bruce Momjian's book)
>
> I get no rows if the result column returned by the subselect
> contains NULL values. It works as expected if I
Frank Joerdens writes:
> When doing a subselect with NOT IN, as in
>
> SELECT name
> >FROM customer
> WHERE customer_id NOT IN (
> SELECT customer_id
> >FROM salesorder
> );
>
> (from Bruce Momjian's book)
>
> I get no rows if the result column returned by the subselect
> contains NULL values. It
On Thu, 1 Mar 2001, Frank Joerdens wrote:
> When doing a subselect with NOT IN, as in
>
> SELECT name
> FROM customer
> WHERE customer_id NOT IN (
> SELECT customer_id
> FROM salesorder
> );
>
> (from Bruce Momjian's book)
>
> I get no rows if the result column returned by the subselect
> con
this is kind of weird but it is how it works.
You cannot use equality for null...
Null does not equal Null
Null means no value, since it's not a value
it can't equal anything another no value.
SELECT name
FROM customer
WHERE customer_id NOT IN
(
SELECT customer_id
FROM salesorder
)
and customer_i
Frank Joerdens <[EMAIL PROTECTED]> writes:
> When doing a subselect with NOT IN, as in
> SELECT name
> FROM customer
> WHERE customer_id NOT IN (
> SELECT customer_id
> FROM salesorder
> );
> I get no rows if the result column returned by the subselect
> contains NULL values. It works as expected
> SELECT name
> FROM customer
> WHERE NOT EXISTS (
> SELECT customer_id
> FROM salesorder
> WHERE customer_id = customer.customer_id
> );
>
> Bruce, you may want to consider editing your next edition to include the
> above modification. WHERE ... NOT IN is a bad idea for any subselect on
> mediu
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