Developer's Frequently Asked Questions (FAQ) for PostgreSQL
- Last updated: Mon Sep 19 21:28:08 EDT 2005
+ Last updated: Thu Oct 27 09:48:14 EDT 2005
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
If the postmaster is running, start psql in one window, then find the
PID of the postgres process used by psql using SELECT
pg_backend_pid(). Use a debugger to attach to the postgres PID. You
- can set breakpoints in the debugger and issue queries from psql. If
- you are debugging postgres startup, you can set PGOPTIONS="-W n", then
- start psql. This will cause startup to delay for n seconds so you can
- attach to the process with the debugger, set any breakpoints, and
- continue through the startup sequence.
+ can set breakpoints in the debugger and issue queries from the other.
+ If you are looking to find the location that is generating an error or
+ log message, set a breakpoint at errfinish. psql. If you are debugging
+ postgres startup, you can set PGOPTIONS="-W n", then start psql. This
+ will cause startup to delay for n seconds so you can attach to the
+ process with the debugger, set any breakpoints, and continue through
+ the startup sequence.
You can also compile with profiling to see what functions are taking
execution time. The backend profile files will be deposited in the
<H1>Developer's Frequently Asked Questions (FAQ) for
PostgreSQL</H1>
- <P>Last updated: Mon Sep 19 21:28:08 EDT 2005</P>
+ <P>Last updated: Thu Oct 27 09:48:14 EDT 2005</P>
<P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
window, then find the <SMALL>PID</SMALL> of the <I>postgres</I>
process used by <I>psql</I> using <CODE>SELECT pg_backend_pid()</CODE>.
Use a debugger to attach to the <I>postgres</I> <SMALL>PID</SMALL>.
- You can set breakpoints in the debugger and issue queries from
+ You can set breakpoints in the debugger and issue queries from the
+ other. If you are looking to find the location that is generating
+ an error or log message, set a breakpoint at <I>errfinish</>.
<I>psql</I>. If you are debugging <I>postgres</I> startup, you can
set PGOPTIONS="-W n", then start <I>psql</I>. This will cause startup