Re: Adding a field in Path Structure and Plan Structure

On Mon, Feb 23, 2009 at 4:14 PM, Zichen Xu <xzckiller(at)gmail(dot)com> wrote:
> Here is my problem and also the question. I'd like adding a field in
> Path structure and Plan structure as follows:
>
> typedef struct Path{
> ....bla bla bla
>
> Cost energy_cost;
>
> ....bla bla bla
>
>
> }
>
>
> typedef struct Plan{
> ....bla bla bla
>
> Cost energy_cost;
>
> ....bla bla bla
>
>
> }
>
>
> Also, I have modified the funscopy.c and every related place where the
> other field total_cost appears. Right now, the compile is fine and
> build is fine. However, everytime the server is running and I send a
> query to the server, it crashed. as
>
> psql:1.sql:23: server closed the connection unexpectedly
> This probably means the server terminated abnormally
> before or while processing the request.
> psql:1.sql:23: connection to server was lost
>
>
> Is there anyone who can help me with it?

Attach to the backend with gdb. Then you can get a backtrace, esp. if
you've built with --enable-debug.

It may be helpful to use lsof to figure out which backend your psql
session is connected to.

...Robert