I have looked at this behavior, which indeed is new for 8.1. The change
was caused by code I think I did to improve the behavior of
log_statement, specifically streamlining how we check for the type of
command.
In looking at reverting to the 8.0 behavior of logging error commands
with 'all', I see it is going to be hard to do, specifically since we
added behavior of logging the PREPARE query when EXECUTE is sent. I
don't think we want to lose that feature, and to have it we have to
first parse the statement, with possible exit on error.
What I have done is to document that errors are not output by
log_statement, and added as suggestion to use log_min_error_statement
for this purpose. I also fixed the code so the first EXECUTE has it's
prepare, rather than the last which is what was in the current code.
I also removed the "protocol" prefix from the PREPARE output, because in
fact both protocol and SQL-level prepares can be executed by SQL
EXECUTE.
Patch attached. I have backpatched this to 8.1.X.
---------------------------------------------------------------------------
Martin Marques wrote:
>
> OK, you're right about the log_min_error_statement value, but this behaviour
> has changed from 8.0. In earlier versions ERROR statements did get logged if
> log_statment was set to all or in 7.4, set to "on" DMaybe I missed something
> in the changelog of 8.1?
>
> On Tue, 11 Apr 2006 23:51:51 +0200, "Guillaume Smet" <[EMAIL PROTECTED]>
> wrote:
> >> From: Martin Marques <[email protected]>
> >> I encountered a rare BUG in the way PG is logging. Let me first enlight
> > with some configuration I have and PG version:
> >
> > Perhaps I'm missing something but I think it's not a bug but a
> > configuration problem.
> >
> >> log_min_error_statement | panic
> >
> > If you set this one to error instead of panic, you will have your
> > failed statements logged.
> >
> >> log_statement | all
> >
> > This one only logs successful queries so it's normal you don't have
> > the statement in the log file if it fails.
> >
> > Regards,
> >
> >
> --
> ---------------------------------------------------------
> Lic. Mart?n Marqu?s | SELECT 'mmarques' ||
> Centro de Telem?tica | '@' || 'unl.edu.ar';
> Universidad Nacional | DBA, Programador,
> del Litoral | Administrador
> ---------------------------------------------------------
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>
--
Bruce Momjian http://candle.pha.pa.us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
Index: doc/src/sgml/config.sgml
===================================================================
RCS file: /cvsroot/pgsql/doc/src/sgml/config.sgml,v
retrieving revision 1.52
diff -c -c -r1.52 config.sgml
*** doc/src/sgml/config.sgml 10 Mar 2006 19:10:47 -0000 1.52
--- doc/src/sgml/config.sgml 18 Apr 2006 00:35:12 -0000
***************
*** 2758,2766 ****
<note>
<para>
The <command>EXECUTE</command> statement is not considered a
! <literal>ddl</> or <literal>mod</> statement. When it is logged,
! only the name of the prepared statement is reported, not the
! actual prepared statement.
</para>
<para>
--- 2758,2767 ----
<note>
<para>
The <command>EXECUTE</command> statement is not considered a
! <literal>ddl</> or <literal>mod</> statement. Statements that
! generate errors are not logged. Set
! <varname>log_min_error_statement</> to <literal>error</> to
! log such statements.
</para>
<para>
Index: src/backend/tcop/postgres.c
===================================================================
RCS file: /cvsroot/pgsql/src/backend/tcop/postgres.c,v
retrieving revision 1.483
diff -c -c -r1.483 postgres.c
*** src/backend/tcop/postgres.c 4 Apr 2006 19:35:35 -0000 1.483
--- src/backend/tcop/postgres.c 18 Apr 2006 00:35:21 -0000
***************
*** 586,604 ****
/*
* For the first EXECUTE we find, record the client statement
used by
! * the PREPARE.
*/
if (IsA(parsetree, ExecuteStmt))
{
ExecuteStmt *stmt = (ExecuteStmt *) parsetree;
PreparedStatement *entry;
! if ((entry = FetchPreparedStatement(stmt->name, false))
!= NULL &&
entry->query_string)
{
*prepare_string =
palloc(strlen(entry->query_string) +
!
strlen(" [protocol PREPARE: %s]") - 1);
! sprintf(*prepare_string, " [protocol PREPARE:
%s]",
entry->query_string);
}
}
--- 586,606 ----
/*
* For the first EXECUTE we find, record the client statement
used by
! * the PREPARE. PREPARE doesn't save the parse tree so we have
no
! * way to conditionally output based on the type of query
prepared.
*/
if (IsA(parsetree, ExecuteStmt))
{
ExecuteStmt *stmt = (ExecuteStmt *) parsetree;
PreparedStatement *entry;
! if (*prepare_string == NULL &&
! (entry = FetchPreparedStatement(stmt->name,
false)) != NULL &&
entry->query_string)
{
*prepare_string =
palloc(strlen(entry->query_string) +
!
strlen(" [PREPARE: %s]") - 2 + 1);
! sprintf(*prepare_string, " [PREPARE: %s]",
entry->query_string);
}
}
---------------------------(end of broadcast)---------------------------
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