Hi;
In my code, when ExecProject(node->js.ps.ps_ProjInfo, &isDone) method is
called, I get the error message:

ERROR: invalid attribute number 3

Could you tell me what the problem might be?

Thanks;

Hi Elad,

You suggested to use print_slot to print the tuple slot, but as stated in
assignment 0, printf doesnt print to the psql client.

So how can I use this method with elog, so it prints to the psql client..
?

Thanks
Farah

I will have office hours tomorrow between 10am and 11am, as usual.
Additionally, for the late sleepers among you (or for people with time
conflicts), I will have an extra hour between 4pm and 5pm.

Elad

Hi,

I am getting the following error continously. Please help.

a2=# select * from emp e, dept d
a2-# where e.dno = d.dno;
server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: WARNING:
terminating connection because of crash of another server process
DETAIL: The postmaster has commanded this server process to roll back the
current transaction and exit, because another server process exited
abnormally and possibly corrupted shared memory.
HINT: In a moment you should be able to reconnect to the database and
repeat your command.
Failed.

Thanks
Farah

Hi,
I am just wondering if our code is going to be tested with outer
join test cases. If yes, then what's the percentage of marks that will be
allocated to outer join.

Of possible interest.

jt

-------- Original Message --------
Subject: [ANNOUNCE] PostgreSQL Summer of Code 2008
Date: Wed, 19 Mar 2008 14:52:53 -0700
From: Josh Berkus postgresql.org>
Reply-To: josh@postgresql.org
Organization: PostgreSQL Project
To: pgsql-announce@postgresql.org

PostgreSQL has been invited by Google to be part Google's Summer of Code
2008. We are calling all students, professors and potential mentors to
participate.

For Summer of Code, Google will be paying for student internships to work
on PostgreSQL features and applications. We've put up a list of ideas,
including guidelines for submissions and more. Applications for students
open March 25th, and close March 31, so urge any students you know to get
your applications prepared right away!

Hi..

I just wanted to make sure that when disabling the use of multiple
batches, we should discard *ALL* the code in nodeHashjoin.c that is saving
and retrieving tuples to temporary files.

And in nodeHash.c we should just make ExecHashGetBucketAndBatch return
batch 1, assuming there won't be more than 1 batch anyways, as everything
resides in memory.

Please confirm.
Thank you.
Farah

1. what exactly does the execHash function perform? what must it return?
2. what are the functions that call execHash function?

thank you

Hi,

Are there tutor hours for the assignment this week ?

Thanks
Farah

What exactly is covered on the midterm?

Since relational algebra and relational calculus was covered in CS 348, how
well do we have to know it?