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Bruce Momjian 2002-02-25 20:29:39 +00:00
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doc/FAQ_DEV
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Developer's Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Sat Feb 23 15:09:27 EST 2002
Last updated: Mon Feb 25 15:29:28 EST 2002
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@ -642,12 +642,16 @@ List *i, *list;
elog() is used to send messages to the front-end, and optionally
terminate the current query being processed. The first parameter is an
elog level of NOTICE, DEBUG, ERROR, or FATAL. NOTICE prints on the
user's terminal and the postmaster logs. DEBUG prints only in the
postmaster logs. ERROR prints in both places, and terminates the
current query, never returning from the call. FATAL terminates the
backend process. The remaining parameters of elog are a printf-style
set of parameters to print.
elog level of DEBUG (levels 1-5), LOG, INFO, NOTICE, ERROR, FATAL, or
PANIC. NOTICE prints on the user's terminal and the postmaster logs.
INFO prints only to the user's terminal and LOG prints only to the
server logs. (These can be changed from postgresql.conf.) ERROR prints
in both places, and terminates the current query, never returning from
the call. FATAL terminates the backend process. The remaining
parameters of elog are a printf-style set of parameters to print.
elog(ERROR) frees most memory and open file descriptors so you don't
need to clean these up before the call.
2.7) What is CommandCounterIncrement()?

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doc/src/FAQ/FAQ_DEV.html
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<H1>Developer's Frequently Asked Questions (FAQ) for
PostgreSQL</H1>
<P>Last updated: Sat Feb 23 15:09:27 EST 2002</P>
<P>Last updated: Mon Feb 25 15:29:28 EST 2002</P>
<P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
@ -777,14 +777,19 @@
<P><I>elog()</I> is used to send messages to the front-end, and
optionally terminate the current query being processed. The first
parameter is an elog level of <I>NOTICE,</I> <I>DEBUG,</I>
<I>ERROR,</I> or <I>FATAL.</I> <I>NOTICE</I> prints on the user's
terminal and the postmaster logs. <I>DEBUG</I> prints only in the
postmaster logs. <I>ERROR</I> prints in both places, and terminates
the current query, never returning from the call. <I>FATAL</I>
terminates the backend process. The remaining parameters of
<I>elog</I> are a <I>printf</I>-style set of parameters to
print.</P>
parameter is an elog level of <I>DEBUG</I> (levels 1-5), <I>LOG,</I>
<I>INFO,</I> <I>NOTICE,</I> <I>ERROR,</I> <I>FATAL,</I> or
<I>PANIC.</I> <I>NOTICE</I> prints on the user's terminal and the
postmaster logs. <I>INFO</I> prints only to the user's terminal and
<I>LOG</I> prints only to the server logs. (These can be changed
from <I>postgresql.conf.</I>) <I>ERROR</I> prints in both places,
and terminates the current query, never returning from the call.
<I>FATAL</I> terminates the backend process. The remaining
parameters of <I>elog</I> are a <I>printf</I>-style set of
parameters to print.</P>
<P><I>elog(ERROR)</I> frees most memory and open file descriptors so
you don't need to clean these up before the call.</P>
<H3><A name="2.7">2.7</A>) What is CommandCounterIncrement()?</H3>