Applied.

---------------------------------------------------------------------------

Bruce Momjian wrote:
> Nicolai Tufar wrote:
> > Hello all,
> > 
> > I would like to submit my changes to src/port/snprintf.c to
> > enable %n$ format placeholder replacement in snprintf() and
> > vsnprintf(). Additionally I implemented a trivial printf().
> > 
> > I also attach a diff for configure.in to include snprintf.o
> > in pgport but I am sure it is not the right thing to do.
> > Could someone give a hint on where I need to place such a
> > definition.
> > 
> > Please review my patch. as Tom Lane pointed out there
> > are 150 messages in the following files that do not print
> > properly:
> 
> It took me a while to understand this but I get it now.  This is the
> best explanation I have seen, from Linux 2.6:
> 
>       One can also specify explicitly which argument is taken, at each place
>       where an argument is required, by writing '%m$' instead of '%' and '*m$'
>       instead of '*', where the decimal integer m denotes the position in the
>       argument list of the desired argument, indexed starting from 1. Thus,
>       
>               printf("%*d", width, num);
>       
>       and
>       
>               printf("%2$*1$d", width, num);
>       
>       are  equivalent.  The  second style allows repeated references to the
>       same argument. The C99 standard does not include the style using '$',
>       which comes from the Single Unix Specification.  If the style using '$'
>       is used, it must be  used throughout for all conversions taking an
>       argument and all width and precision arguments, but it may be mixed with
>       '%%' formats which do not consume an argument.  There may be no gaps in
>       the numbers of arguments specified using  '$';  for example, if
>       arguments 1 and 3 are specified, argument 2 must also be specified
>       somewhere in the format string.
> 
> I can see why this would be useful for translations because it uncouples
> the order of the printf arguments from the printf string.  However, I
> have learned that Win32, HP-UX, NetBSD 2.0, and BSD/OS do not support
> this.  This is probably because it is not in C99 but in SUS (see above).
> 
> Anyway, this is too large to put into 8.0, but I am attaching a patch
> for 8.1 that has the proper configure tests to check if the C library
> supports this behavior.  If it does not, the build will use our
> port/snprintf.c.
> 
> One problem with that is that our snprintf.c is not thread-safe.  Seems
> the increases use of it will require us to fix this soon.  I have added
> to TODO:
> 
>       * Make src/port/snprintf.c thread-safe
> 
> One change to the original port is that there was a define of a union
> with no name:
> 
> +               union{
> +                       void*   value;
> +                       long_long       numvalue;
> +                       double          fvalue;
> +                       int             charvalue;
> +               };
> 
> As far as I know a union with no name is illegal.  I just removed the
> "union {" and the closing brace.
> 
> -- 
>   Bruce Momjian                        |  http://candle.pha.pa.us
>   pgman@candle.pha.pa.us               |  (610) 359-1001
>   +  If your life is a hard drive,     |  13 Roberts Road
>   +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

> Index: configure
> ===================================================================
> RCS file: /cvsroot/pgsql/configure,v
> retrieving revision 1.425
> diff -c -c -r1.425 configure
> *** configure 18 Jan 2005 05:23:35 -0000      1.425
> --- configure 13 Feb 2005 23:50:46 -0000
> ***************
> *** 12162,12167 ****
> --- 12162,12224 ----
>   done
>   
>   
> + echo "$as_me:$LINENO: checking printf supports argument control" >&5
> + echo $ECHO_N "checking printf supports argument control... $ECHO_C" >&6
> + if test "${pgac_cv_printf_arg_control+set}" = set; then
> +   echo $ECHO_N "(cached) $ECHO_C" >&6
> + else
> +   if test "$cross_compiling" = yes; then
> +   pgac_cv_printf_arg_control=cross
> + else
> +   cat >conftest.$ac_ext <<_ACEOF
> + #line $LINENO "configure"
> + #include "confdefs.h"
> + #include <stdio.h>
> + 
> + int does_printf_have_arg_control()
> + {
> +   char buf[100];
> + 
> +   /* can it swap arguments? */
> +   snprintf(buf, 100, "%2$d|%1$d", 3, 4);
> +   if (strcmp(buf, "4|3") != 0)
> +     return 0;
> +   return 1;
> + }
> + main() {
> +   exit(! does_printf_have_arg_control());
> + }
> + _ACEOF
> + rm -f conftest$ac_exeext
> + if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
> +   (eval $ac_link) 2>&5
> +   ac_status=$?
> +   echo "$as_me:$LINENO: \$? = $ac_status" >&5
> +   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
> +   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
> +   (eval $ac_try) 2>&5
> +   ac_status=$?
> +   echo "$as_me:$LINENO: \$? = $ac_status" >&5
> +   (exit $ac_status); }; }; then
> +   pgac_cv_printf_arg_control=yes
> + else
> +   echo "$as_me: program exited with status $ac_status" >&5
> + echo "$as_me: failed program was:" >&5
> + cat conftest.$ac_ext >&5
> + ( exit $ac_status )
> + pgac_cv_printf_arg_control=no
> + fi
> + rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext 
> conftest.$ac_ext
> + fi
> + 
> + fi
> + echo "$as_me:$LINENO: result: $pgac_cv_printf_arg_control" >&5
> + echo "${ECHO_T}$pgac_cv_printf_arg_control" >&6
> + 
> + # cross compiler should use our snprintf too
> + if test $pgac_cv_printf_arg_control != yes ; then
> +   pgac_need_repl_snprintf=yes
> + fi
>   
>   # Check whether <stdio.h> declares snprintf() and vsnprintf(); if not,
>   # include/c.h will provide declarations.  Note this is a separate test
> Index: configure.in
> ===================================================================
> RCS file: /cvsroot/pgsql/configure.in,v
> retrieving revision 1.399
> diff -c -c -r1.399 configure.in
> *** configure.in      18 Jan 2005 05:23:36 -0000      1.399
> --- configure.in      13 Feb 2005 23:50:47 -0000
> ***************
> *** 881,886 ****
> --- 881,891 ----
>   AC_CHECK_FUNCS(snprintf, [], pgac_need_repl_snprintf=yes)
>   AC_CHECK_FUNCS(vsnprintf, [], pgac_need_repl_snprintf=yes)
>   
> + PGAC_FUNC_PRINTF_ARG_CONTROL
> + # cross compiler should use our snprintf too
> + if test $pgac_cv_printf_arg_control != yes ; then
> +   pgac_need_repl_snprintf=yes
> + fi
>   
>   # Check whether <stdio.h> declares snprintf() and vsnprintf(); if not,
>   # include/c.h will provide declarations.  Note this is a separate test
> ***************
> *** 1069,1074 ****
> --- 1074,1081 ----
>   [AC_MSG_RESULT([cross-compiling])])
>   
>   
> + dnl  64-bit section
> + dnl
>   dnl Check to see if we have a working 64-bit integer type.
>   dnl This breaks down into two steps:
>   dnl (1) figure out if the compiler has a 64-bit int type with working
> Index: config/c-library.m4
> ===================================================================
> RCS file: /cvsroot/pgsql/config/c-library.m4,v
> retrieving revision 1.29
> diff -c -c -r1.29 c-library.m4
> *** config/c-library.m4       16 Dec 2004 17:48:26 -0000      1.29
> --- config/c-library.m4       13 Feb 2005 23:50:48 -0000
> ***************
> *** 266,268 ****
> --- 266,301 ----
>            LONG_LONG_INT_FORMAT=$pgac_cv_snprintf_long_long_int_format;;
>     *)     AC_MSG_RESULT(none);;
>   esac])# PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT
> + 
> + 
> + # PGAC_FUNC_PRINTF_ARG_CONTROL
> + # ---------------------------------------
> + # Determine if printf supports %1$ argument selection, e.g. %5$ selects
> + # the fifth argument after the printf print string.
> + # This is not in the C99 standard, but in the Single Unix Specification 
> (SUS).
> + # It is used in our langauge translation strings.
> + #
> + AC_DEFUN([PGAC_FUNC_PRINTF_ARG_CONTROL],
> + [AC_MSG_CHECKING([printf supports argument control])
> + AC_CACHE_VAL(pgac_cv_printf_arg_control,
> + [AC_TRY_RUN([#include <stdio.h>
> + 
> + int does_printf_have_arg_control()
> + {
> +   char buf[100];
> + 
> +   /* can it swap arguments? */
> +   snprintf(buf, 100, "%2$d|%1$d", 3, 4);
> +   if (strcmp(buf, "4|3") != 0)
> +     return 0;
> +   return 1;
> + }
> + main() {
> +   exit(! does_printf_have_arg_control());
> + }],
> + [pgac_cv_printf_arg_control=yes],
> + [pgac_cv_printf_arg_control=no],
> + [pgac_cv_printf_arg_control=cross])
> + ])dnl AC_CACHE_VAL
> + AC_MSG_RESULT([$pgac_cv_printf_arg_control])
> + ])# PGAC_FUNC_PRINTF_ARG_CONTROL
> Index: src/port/snprintf.c
> ===================================================================
> RCS file: /cvsroot/pgsql/src/port/snprintf.c,v
> retrieving revision 1.4
> diff -c -c -r1.4 snprintf.c
> *** src/port/snprintf.c       29 Aug 2004 05:07:02 -0000      1.4
> --- src/port/snprintf.c       13 Feb 2005 23:50:56 -0000
> ***************
> *** 57,62 ****
> --- 57,66 ----
>   typedef unsigned long ulong_long;
>   #endif
>   
> + #ifndef NL_ARGMAX
> + #define NL_ARGMAX 4096
> + #endif
> + 
>   /*
>   **  SNPRINTF, VSNPRINT -- counted versions of printf
>   **
> ***************
> *** 85,93 ****
> --- 89,115 ----
>   
>   int                 snprintf(char *str, size_t count, const char *fmt,...);
>   int                 vsnprintf(char *str, size_t count, const char *fmt, 
> va_list args);
> + int                 printf(const char *format, ...);
>   static void dopr(char *buffer, const char *format, va_list args);
>   
>   int
> + printf(const char *fmt,...)
> + {
> +     int                     len;
> +     va_list                 args;
> +     static char*            buffer[4096];
> +     char*                   p;
> + 
> +     va_start(args, fmt);
> +     len = vsnprintf((char*)buffer, (size_t)4096, fmt, args);
> +     va_end(args);
> +     p = (char*)buffer;
> +     for(;*p;p++)
> +             putchar(*p);
> +     return len;
> + }
> + 
> + int
>   snprintf(char *str, size_t count, const char *fmt,...)
>   {
>       int                     len;
> ***************
> *** 124,129 ****
> --- 146,155 ----
>   
>   static char *output;
>   
> + #define     FMTSTR          1
> + #define     FMTNUM          2
> + #define     FMTFLOAT        3
> + #define     FMTCHAR         4
>   
>   static void
>   dopr(char *buffer, const char *format, va_list args)
> ***************
> *** 139,145 ****
> --- 165,198 ----
>       int                     ljust;
>       int                     len;
>       int                     zpad;
> +     int                     i;
> +     const char*             format_save;
> +     const char*             fmtbegin;
> +     int                     fmtpos = 1;
> +     int                     realpos = 0;
> +     int                     position;
> +     static struct{
> +             const char*     fmtbegin;
> +             const char*     fmtend;
> +             void*   value;
> +             long_long       numvalue;
> +             double  fvalue;
> +             int     charvalue;
> +             int     ljust;
> +             int     len;
> +             int     zpad;
> +             int     maxwidth;
> +             int     base;
> +             int     dosign;
> +             char    type;
> +             int     precision;
> +             int     pointflag;
> +             char    func;
> +             int     realpos;
> +     } fmtpar[NL_ARGMAX+1], *fmtparptr[NL_ARGMAX+1];
> + 
>   
> +     format_save = format;
>       output = buffer;
>       while ((ch = *format++))
>       {
> ***************
> *** 148,161 ****
>                       case '%':
>                               ljust = len = zpad = maxwidth = 0;
>                               longflag = longlongflag = pointflag = 0;
>               nextch:
>                               ch = *format++;
>                               switch (ch)
>                               {
>                                       case 0:
> !                                             dostr("**end of format**", 0);
> !                                             *output = '\0';
> !                                             return;
>                                       case '-':
>                                               ljust = 1;
>                                               goto nextch;
> --- 201,215 ----
>                       case '%':
>                               ljust = len = zpad = maxwidth = 0;
>                               longflag = longlongflag = pointflag = 0;
> +                             fmtbegin = format - 1;
> +                             realpos = 0;
> +                             position = 0;
>               nextch:
>                               ch = *format++;
>                               switch (ch)
>                               {
>                                       case 0:
> !                                             goto performpr;
>                                       case '-':
>                                               ljust = 1;
>                                               goto nextch;
> ***************
> *** 174,180 ****
> --- 228,241 ----
>                                               if (pointflag)
>                                                       maxwidth = maxwidth * 
> 10 + ch - '0';
>                                               else
> +                                             { 
>                                                       len = len * 10 + ch - 
> '0';
> +                                                     position = position * 
> 10 + ch - '0';
> +                                             }
> +                                             goto nextch;
> +                                     case '$':
> +                                             realpos = position;
> +                                             len = 0;
>                                               goto nextch;
>                                       case '*':
>                                               if (pointflag)
> ***************
> *** 203,209 ****
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> unsigned int);
> !                                             fmtnum(value, 10, 0, ljust, 
> len, zpad);
>                                               break;
>                                       case 'o':
>                                       case 'O':
> --- 264,280 ----
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> unsigned int);
> !                                             fmtpar[fmtpos].fmtbegin = 
> fmtbegin;
> !                                             fmtpar[fmtpos].fmtend = format;
> !                                             fmtpar[fmtpos].numvalue = value;
> !                                             fmtpar[fmtpos].base = 10;
> !                                             fmtpar[fmtpos].dosign = 0;
> !                                             fmtpar[fmtpos].ljust = ljust;
> !                                             fmtpar[fmtpos].len = len;
> !                                             fmtpar[fmtpos].zpad = zpad;
> !                                             fmtpar[fmtpos].func = FMTNUM;
> !                                             fmtpar[fmtpos].realpos = 
> realpos?realpos:fmtpos;
> !                                             fmtpos++;
>                                               break;
>                                       case 'o':
>                                       case 'O':
> ***************
> *** 217,223 ****
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> unsigned int);
> !                                             fmtnum(value, 8, 0, ljust, len, 
> zpad);
>                                               break;
>                                       case 'd':
>                                       case 'D':
> --- 288,304 ----
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> unsigned int);
> !                                             fmtpar[fmtpos].fmtbegin = 
> fmtbegin;
> !                                             fmtpar[fmtpos].fmtend = format;
> !                                             fmtpar[fmtpos].numvalue = value;
> !                                             fmtpar[fmtpos].base = 8;
> !                                             fmtpar[fmtpos].dosign = 0;
> !                                             fmtpar[fmtpos].ljust = ljust;
> !                                             fmtpar[fmtpos].len = len;
> !                                             fmtpar[fmtpos].zpad = zpad;
> !                                             fmtpar[fmtpos].func = FMTNUM;
> !                                             fmtpar[fmtpos].realpos = 
> realpos?realpos:fmtpos;
> !                                             fmtpos++;
>                                               break;
>                                       case 'd':
>                                       case 'D':
> ***************
> *** 230,236 ****
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> int);
> !                                             fmtnum(value, 10, 1, ljust, 
> len, zpad);
>                                               break;
>                                       case 'x':
>                                               if (longflag)
> --- 311,327 ----
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> int);
> !                                             fmtpar[fmtpos].fmtbegin = 
> fmtbegin;
> !                                             fmtpar[fmtpos].fmtend = format;
> !                                             fmtpar[fmtpos].numvalue = value;
> !                                             fmtpar[fmtpos].base = 10;
> !                                             fmtpar[fmtpos].dosign = 1;
> !                                             fmtpar[fmtpos].ljust = ljust;
> !                                             fmtpar[fmtpos].len = len;
> !                                             fmtpar[fmtpos].zpad = zpad;
> !                                             fmtpar[fmtpos].func = FMTNUM;
> !                                             fmtpar[fmtpos].realpos = 
> realpos?realpos:fmtpos;
> !                                             fmtpos++;
>                                               break;
>                                       case 'x':
>                                               if (longflag)
> ***************
> *** 242,248 ****
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> unsigned int);
> !                                             fmtnum(value, 16, 0, ljust, 
> len, zpad);
>                                               break;
>                                       case 'X':
>                                               if (longflag)
> --- 333,349 ----
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> unsigned int);
> !                                             fmtpar[fmtpos].fmtbegin = 
> fmtbegin;
> !                                             fmtpar[fmtpos].fmtend = format;
> !                                             fmtpar[fmtpos].numvalue = value;
> !                                             fmtpar[fmtpos].base = 16;
> !                                             fmtpar[fmtpos].dosign = 0;
> !                                             fmtpar[fmtpos].ljust = ljust;
> !                                             fmtpar[fmtpos].len = len;
> !                                             fmtpar[fmtpos].zpad = zpad;
> !                                             fmtpar[fmtpos].func = FMTNUM;
> !                                             fmtpar[fmtpos].realpos = 
> realpos?realpos:fmtpos;
> !                                             fmtpos++;
>                                               break;
>                                       case 'X':
>                                               if (longflag)
> ***************
> *** 254,260 ****
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> unsigned int);
> !                                             fmtnum(value, -16, 0, ljust, 
> len, zpad);
>                                               break;
>                                       case 's':
>                                               strvalue = va_arg(args, char *);
> --- 355,371 ----
>                                               }
>                                               else
>                                                       value = va_arg(args, 
> unsigned int);
> !                                             fmtpar[fmtpos].fmtbegin = 
> fmtbegin;
> !                                             fmtpar[fmtpos].fmtend = format;
> !                                             fmtpar[fmtpos].numvalue = value;
> !                                             fmtpar[fmtpos].base = -16;
> !                                             fmtpar[fmtpos].dosign = 1;
> !                                             fmtpar[fmtpos].ljust = ljust;
> !                                             fmtpar[fmtpos].len = len;
> !                                             fmtpar[fmtpos].zpad = zpad;
> !                                             fmtpar[fmtpos].func = FMTNUM;
> !                                             fmtpar[fmtpos].realpos = 
> realpos?realpos:fmtpos;
> !                                             fmtpos++;
>                                               break;
>                                       case 's':
>                                               strvalue = va_arg(args, char *);
> ***************
> *** 262,273 ****
>                                               {
>                                                       if (pointflag && len > 
> maxwidth)
>                                                               len = maxwidth; 
> /* Adjust padding */
> !                                                     fmtstr(strvalue, ljust, 
> len, zpad, maxwidth);
>                                               }
>                                               break;
>                                       case 'c':
>                                               ch = va_arg(args, int);
> !                                             dopr_outch(ch);
>                                               break;
>                                       case 'e':
>                                       case 'E':
> --- 373,398 ----
>                                               {
>                                                       if (pointflag && len > 
> maxwidth)
>                                                               len = maxwidth; 
> /* Adjust padding */
> !                                                     fmtpar[fmtpos].fmtbegin 
> = fmtbegin;
> !                                                     fmtpar[fmtpos].fmtend = 
> format;
> !                                                     fmtpar[fmtpos].value = 
> strvalue;
> !                                                     fmtpar[fmtpos].ljust = 
> ljust;
> !                                                     fmtpar[fmtpos].len = 
> len;
> !                                                     fmtpar[fmtpos].zpad = 
> zpad;
> !                                                     fmtpar[fmtpos].maxwidth 
> = maxwidth;
> !                                                     fmtpar[fmtpos].func = 
> FMTSTR;
> !                                                     fmtpar[fmtpos].realpos 
> = realpos?realpos:fmtpos;
> !                                                     fmtpos++;
>                                               }
>                                               break;
>                                       case 'c':
>                                               ch = va_arg(args, int);
> !                                             fmtpar[fmtpos].fmtbegin = 
> fmtbegin;
> !                                             fmtpar[fmtpos].fmtend = format;
> !                                             fmtpar[fmtpos].charvalue = ch;
> !                                             fmtpar[fmtpos].func = FMTCHAR;
> !                                             fmtpar[fmtpos].realpos = 
> realpos?realpos:fmtpos;
> !                                             fmtpos++;
>                                               break;
>                                       case 'e':
>                                       case 'E':
> ***************
> *** 275,285 ****
>                                       case 'g':
>                                       case 'G':
>                                               fvalue = va_arg(args, double);
> !                                             fmtfloat(fvalue, ch, ljust, 
> len, maxwidth, pointflag);
>                                               break;
>                                       case '%':
> !                                             dopr_outch(ch);
> !                                             continue;
>                                       default:
>                                               dostr("???????", 0);
>                               }
> --- 400,419 ----
>                                       case 'g':
>                                       case 'G':
>                                               fvalue = va_arg(args, double);
> !                                             fmtpar[fmtpos].fmtbegin = 
> fmtbegin;
> !                                             fmtpar[fmtpos].fmtend = format;
> !                                             fmtpar[fmtpos].fvalue = fvalue;
> !                                             fmtpar[fmtpos].type = ch;
> !                                             fmtpar[fmtpos].ljust = ljust;
> !                                             fmtpar[fmtpos].len = len;
> !                                             fmtpar[fmtpos].maxwidth = 
> maxwidth;
> !                                             fmtpar[fmtpos].pointflag = 
> pointflag;
> !                                             fmtpar[fmtpos].func = FMTFLOAT;
> !                                             fmtpar[fmtpos].realpos = 
> realpos?realpos:fmtpos;
> !                                             fmtpos++;
>                                               break;
>                                       case '%':
> !                                             break;
>                                       default:
>                                               dostr("???????", 0);
>                               }
> ***************
> *** 289,294 ****
> --- 423,475 ----
>                               break;
>               }
>       }
> + performpr:
> +     /* shuffle pointers */
> +     for(i = 1; i < fmtpos; i++)
> +     {
> +             fmtparptr[i] = &fmtpar[fmtpar[i].realpos];
> +     }
> +     output = buffer;
> +     format = format_save;
> +     while ((ch = *format++))
> +     {
> +             for(i = 1; i < fmtpos; i++)
> +             {
> +                     if(ch == '%' && *format == '%')
> +                     {
> +                             format++;
> +                             continue;
> +                     }
> +                     if(fmtpar[i].fmtbegin == format - 1)
> +                     {
> +                             switch(fmtparptr[i]->func){
> +                             case FMTSTR:
> +                                     fmtstr(fmtparptr[i]->value, 
> fmtparptr[i]->ljust,
> +                                             fmtparptr[i]->len, 
> fmtparptr[i]->zpad,
> +                                             fmtparptr[i]->maxwidth);
> +                                     break;
> +                             case FMTNUM:
> +                                     fmtnum(fmtparptr[i]->numvalue, 
> fmtparptr[i]->base,
> +                                             fmtparptr[i]->dosign, 
> fmtparptr[i]->ljust,
> +                                             fmtparptr[i]->len, 
> fmtparptr[i]->zpad);
> +                                     break;
> +                             case FMTFLOAT:
> +                                     fmtfloat(fmtparptr[i]->fvalue, 
> fmtparptr[i]->type,
> +                                             fmtparptr[i]->ljust, 
> fmtparptr[i]->len,
> +                                             fmtparptr[i]->precision, 
> fmtparptr[i]->pointflag);
> +                                     break;
> +                             case FMTCHAR:
> +                                     dopr_outch(fmtparptr[i]->charvalue);
> +                                     break;
> +                             }
> +                             format = fmtpar[i].fmtend;
> +                             goto nochar;
> +                     }
> +             }
> +             dopr_outch(ch);
> + nochar:
> +     /* nothing */
> +     }
>       *output = '\0';
>   }
>   

> 
> ---------------------------(end of broadcast)---------------------------
> TIP 2: you can get off all lists at once with the unregister command
>     (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

---------------------------(end of broadcast)---------------------------
TIP 5: Have you checked our extensive FAQ?

               http://www.postgresql.org/docs/faq

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