--- old/postgresql-7.2.1/src/backend/utils/adt/float.c  Tue Dec 11 02:02:12 2001
+++ postgresql-7.2.1/src/backend/utils/adt/float.c      Mon Nov  4 10:32:33 2002
@@ -65,6 +65,12 @@
 #include "utils/array.h"
 #include "utils/builtins.h"
 
+/*
+ *     Configuration options for float4 and float8 extra digits in output format
+ */
+
+int extra_float4_digits;
+int extra_float8_digits;
 
 #if !(NeXT && NX_CURRENT_COMPILER_RELEASE > NX_COMPILER_RELEASE_3_2)
  /* NS3.3 has conflicting declarations of these in <math.h> */
@@ -237,7 +243,7 @@
        if (infflag < 0)
                PG_RETURN_CSTRING(strcpy(ascii, "-Infinity"));
 
-       sprintf(ascii, "%.*g", FLT_DIG, num);
+       sprintf(ascii, "%.*g", FLT_DIG+extra_float4_digits, num);
        PG_RETURN_CSTRING(ascii);
 }
 
@@ -299,7 +305,7 @@
        if (infflag < 0)
                PG_RETURN_CSTRING(strcpy(ascii, "-Infinity"));
 
-       sprintf(ascii, "%.*g", DBL_DIG, num);
+       sprintf(ascii, "%.*g", DBL_DIG+extra_float8_digits, num);
        PG_RETURN_CSTRING(ascii);
 }