Re: [HACKERS] debug flag

Bruce Momjian <maillist@candle.pha.pa.us>

From: Bruce Momjian <maillist@candle.pha.pa.us>
To: sthomas@cise.ufl.edu (Shiby Thomas)
Cc: pgsql-hackers@postgreSQL.org
Date: 1998-01-19T21:55:22Z
Lists: pgsql-hackers
> 
> Hi,
> 
> If I want to compile the PostgreSQL 6.2.1 code with the -g flag, which Makefile
> should I add it. I would like to run it thru a debugger. I am compiling it
> with gcc; so I should be able to use xgdb, right?
> 
> The sort cost in the planner is assumed to be 0. So, there is an unfair bias
> towards sort-merge join in the optimizer. If I want to add a sort cost, will
> it be enough to add it in the make_sortplan() function in 
> optimizer/plan/planner.c.
> Is the size of the relation to be sorted estimated at that time?
> If not what is the best way to do this?

I think this is fixed in 6.3.  Beta is Feb 1.

-- 
Bruce Momjian
maillist@candle.pha.pa.us