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Add mention of errfinish.

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Bruce Momjian
2005-10-27 13:48:14 +00:00
parent 3332e38189
commit 0849955f3a
2 changed files with 12 additions and 8 deletions
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doc/FAQ_DEV
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@ -1,7 +1,7 @@
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)
@ -798,11 +798,13 @@ typedef struct nameData
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