Index: doc/src/sgml/ref/copy.sgml
===================================================================
RCS file: /cvsroot/pgsql/doc/src/sgml/ref/copy.sgml,v
retrieving revision 1.65
diff -c -c -r1.65 copy.sgml
*** doc/src/sgml/ref/copy.sgml	7 May 2005 02:22:45 -0000	1.65
--- doc/src/sgml/ref/copy.sgml	28 May 2005 14:02:59 -0000
***************
*** 424,436 ****
         <entry>Backslash followed by one to three octal digits specifies
         the character with that numeric code</entry>
        </row>
       </tbody>
      </tgroup>
     </informaltable>
  
!     Presently, <command>COPY TO</command> will never emit an octal-digits
!     backslash sequence, but it does use the other sequences listed above
!     for those control characters.
     </para>
  
     <para>
--- 424,441 ----
         <entry>Backslash followed by one to three octal digits specifies
         the character with that numeric code</entry>
        </row>
+       <row>
+        <entry><literal>\x</><replaceable>digits</></entry>
+        <entry>Backslash <literal>x</> followed by one or two hex digits specifies
+        the character with that numeric code</entry>
+       </row>
       </tbody>
      </tgroup>
     </informaltable>
  
!     Presently, <command>COPY TO</command> will never emit an octal or 
!     hex-digits backslash sequence, but it does use the other sequences
!     listed above for those control characters.
     </para>
  
     <para>
Index: src/backend/commands/copy.c
===================================================================
RCS file: /cvsroot/pgsql/src/backend/commands/copy.c,v
retrieving revision 1.244
diff -c -c -r1.244 copy.c
*** src/backend/commands/copy.c	7 May 2005 02:22:46 -0000	1.244
--- src/backend/commands/copy.c	28 May 2005 14:03:07 -0000
***************
*** 2274,2279 ****
--- 2274,2291 ----
  	return result;
  }
  
+ /*
+  *	Return decimal value for a hexadecimal digit
+  */
+ static
+ int GetDecimalFromHex(char hex)
+ {
+ 	if (isdigit(hex))
+ 		return hex - '0';
+ 	else
+ 		return tolower(hex) - 'a' + 10;
+ }
+ 
  /*----------
   * Read the value of a single attribute, performing de-escaping as needed.
   *
***************
*** 2335,2340 ****
--- 2347,2353 ----
  				case '5':
  				case '6':
  				case '7':
+ 					/* handle \013 */
  					{
  						int			val;
  
***************
*** 2360,2365 ****
--- 2373,2402 ----
  						c = val & 0377;
  					}
  					break;
+ 				case 'x':
+ 					/* Handle \x3F */
+ 					if (line_buf.cursor < line_buf.len)
+ 					{
+ 						char hexchar = line_buf.data[line_buf.cursor];
+ 
+ 						if (isxdigit(hexchar))
+ 						{
+ 							int val = GetDecimalFromHex(hexchar);
+ 
+ 							line_buf.cursor++;
+ 							if (line_buf.cursor < line_buf.len)
+ 							{
+ 								hexchar = line_buf.data[line_buf.cursor];
+ 								if (isxdigit(hexchar))
+ 								{
+ 									line_buf.cursor++;
+ 									val = (val << 4) + GetDecimalFromHex(hexchar);
+ 								}
+ 							}
+ 							c = val & 0xff;
+ 						}
+ 					}
+ 					break;
  				case 'b':
  					c = '\b';
  					break;