The following bug has been logged online:

Bug reference: 1200
Logged by: André Otero

Email address: andre (AT) iee (DOT) usp.br

PostgreSQL version: 7.4

Operating system: Debian Linux on Alpha

Description: VACUUM ANALYZE bug

Details:

Before I run the VACUUM ANALYZE command all query that use JOIN command
return the error: ERROR invalid typeLen: 0.
However the data of tables are unbroken.

Example:
create table departaments
( dp-id int,
name varchar(30),
primary key(dp-id) );

create table requests
( rq-id int,
dp-id int references departaments(dp-id),
description varchar(30),
primary key(dp-id) );

insert into departaments values (1,'Informatica');
insert into departaments values (2,'Recurcos Humanos');
insert into departaments values (3,'Compras');
insert into departaments values (4,'Marketing');
insert into departaments values (5,'Diretoria');
insert into departaments values (6,'Ensino');

insert into requests values (1,1,'nothing');
insert into requests values (2,1,'nothing');
insert into requests values (3,2,'nothing');
insert into requests values (4,3'nothing');
insert into requests values (5,4,'nothing');
insert into requests values (6,4'nothing');

select rq-id,name from requests left join departaments on requests.dp-id =
departaments.dp.id;

this result in:
rq-id | name
1 | Informatica
2 | Informatica
3 | Recursos Humanos
4 | Compras
5 | Marketing
6 | Marketing

now execute VACUUM ANALYZE.... the query dont work...


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"PostgreSQL Bugs List" <pgsql-bugs (AT) postgresql (DOT) org> writes:
You seem to have a rather badly broken copy of Postgres :-( Does it
pass the regression tests? (I'd bet not.)

PG 7.4 is known to run on Linux/Alpha, and since the report in the
"supported platforms" table is from someone at debian.org, I would
imagine that test was specifically on Debian. So it ought to work
for you. Perhaps you got a corrupted download, or used a buggy
compiler to build it, or some such.

regards, tom lane

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