Ocasional problems !!!!

i'm having this message:
ERROR: Unable to identify an operator '=' for types 'int4' and 'text'
You will have to retype this query using an explicit cast

Without knowing your schema and query, we can't tell you exactly. But
your query is trying to compare a string to an integer, which you can do
by using an explicit cast. For example,

select text '123' = 123;

will fail, but

select cast((text '123') as integer) = 123;

will succeed.

- Thomas

What is the schema of the table involved and what are the queries you
are trying to run?

Stephan Szabo
sszabo@bigpanda.com

On Thu, 14 Dec 2000, Luis Sousa wrote:

I just trying to execute a simple query in a table to delete a simpe record
or all of them, like:

DELETE * FROM table;

I have a schema of more or less 25 tables, that are created using a script.
When i'm trying to use that table (and only happens in this table) when
created by the script i receive the message below.
The most strange is that i droped the table and i created again,
maintaining the structure created with the script and i didn't had any
problems !!!

Best Regards

Luis Sousa

Stephan Szabo wrote:

I received that message working directly in psql.

I already send another email, please see.

Regards

Luis Sousa

Thomas Lockhart wrote:

But i'm not making any compare.
I just wrote delete from table; and i receive that message.

Hmm. We will need to know more about your setup, since a simple

delete from table;

in psql does not involve *any* comparisons, and should never provoke the
message you are receiving.

Perhaps there is a foreign key constraint, or some such, being invoked
by this command?

regards, tom lane

Did you perhaps have foreign key constraints with an on delete
clause defined on a table that referenced this one? Postgres doesn't
currently check that the types are comparable before making the
constraint. I'm working on adding a check for that now.

Or for that matter, any other rules or triggers could do it.

On Fri, 15 Dec 2000, Luis Sousa wrote:

I really have constraints of foreign keys but not on delete, only on update

Stephan Szabo wrote:

Did you perhaps have foreign key constraints with an on delete
clause defined on a table that referenced this one? Postgres doesn't
currently check that the types are comparable before making the
constraint. I'm working on adding a check for that now.

Or for that matter, any other rules or triggers could do it.

On Fri, 15 Dec 2000, Luis Sousa wrote:

I just trying to execute a simple query in a table to delete a simpe record
or all of them, like:

DELETE * FROM table;

I have a schema of more or less 25 tables, that are created using a script.
When i'm trying to use that table (and only happens in this table) when
created by the script i receive the message below.
The most strange is that i droped the table and i created again,
maintaining the structure created with the script and i didn't had any
problems !!!

Best Regards

Luis Sousa

Stephan Szabo wrote:

What is the schema of the table involved and what are the queries you
are trying to run?

Stephan Szabo
sszabo@bigpanda.com

On Thu, 14 Dec 2000, Luis Sousa wrote:

I'm trying to delete all the records or only one record or insert one
record in a table but
i'm having this message:
ERROR: Unable to identify an operator '=' for types 'int4' and 'text'
You will have to retype this query using an explicit cast

What's this means ???

Thanks

Luis Sousa

--
Luis Sousa
Tecnico Superior de Informatica
Gabinete de Assessoria e Planeamento
Universidade do Algarve

Actually, it's not going to matter since all foreign keys have a delete
portion (realized after seeing your response) that checks to make sure
the one you are deleting is not being referenced.
I'm surprised you're not seeing this on inserts into the fk table or
on updates to the pk table. What are the types of the columns on
both tables?

Stephan Szabo
sszabo@bigpanda.com

On Mon, 18 Dec 2000, Luis Sousa wrote:

I think i already discovered what's the problem !! At least the problem is not
happening again.

It was some problems in some triggers that are implementend in the database.

Anyway, i appreciatte all the time that you took with my problem

Best Regards

Luis Sousa

Stephan Szabo wrote:

Actually, it's not going to matter since all foreign keys have a delete
portion (realized after seeing your response) that checks to make sure
the one you are deleting is not being referenced.
I'm surprised you're not seeing this on inserts into the fk table or
on updates to the pk table. What are the types of the columns on
both tables?

Stephan Szabo
sszabo@bigpanda.com

On Mon, 18 Dec 2000, Luis Sousa wrote:

I really have constraints of foreign keys but not on delete, only on update

Stephan Szabo wrote:

Did you perhaps have foreign key constraints with an on delete
clause defined on a table that referenced this one? Postgres doesn't
currently check that the types are comparable before making the
constraint. I'm working on adding a check for that now.

Or for that matter, any other rules or triggers could do it.

On Fri, 15 Dec 2000, Luis Sousa wrote:

I just trying to execute a simple query in a table to delete a simpe record
or all of them, like:

DELETE * FROM table;

I have a schema of more or less 25 tables, that are created using a script.
When i'm trying to use that table (and only happens in this table) when
created by the script i receive the message below.
The most strange is that i droped the table and i created again,
maintaining the structure created with the script and i didn't had any
problems !!!

Best Regards

Luis Sousa

Stephan Szabo wrote:

What is the schema of the table involved and what are the queries you
are trying to run?

Stephan Szabo
sszabo@bigpanda.com

On Thu, 14 Dec 2000, Luis Sousa wrote:

I'm trying to delete all the records or only one record or insert one
record in a table but
i'm having this message:
ERROR: Unable to identify an operator '=' for types 'int4' and 'text'
You will have to retype this query using an explicit cast

What's this means ???

Thanks

Luis Sousa

--
Luis Sousa
Tecnico Superior de Informatica
Gabinete de Assessoria e Planeamento
Universidade do Algarve

--
Luis Sousa
Tecnico Superior de Informatica
Gabinete de Assessoria e Planeamento
Universidade do Algarve