Index: src/backend/catalog/catalog.c
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/src/backend/catalog/catalog.c,v
retrieving revision 1.32
diff -c -r1.32 catalog.c
*** src/backend/catalog/catalog.c	2000/04/12 17:14:55	1.32
--- src/backend/catalog/catalog.c	2000/06/11 06:15:45
***************
*** 45,50 ****
--- 45,81 ----
  		return path;
  	}
  
+ 	if ((strncmp(relname, "xin", 3) == 0) && (strlen(relname) > 4))
+ 	  if ((relname[3] == 'v') || (relname[3] == 'x')) {
+ 		/* LO's are resided in Database dir */
+ 		char *err;
+ 		Oid oid;
+ 		size_t bufsize;
+ 
+ 		oid = strtol(relname + 4, &err, 10);
+ 		if (*err == '\0') {
+ 			int pw = 0;
+ 			Oid s_oid = oid;
+ 			while (s_oid != 0) {
+ 			  pw++;
+ 			  s_oid /= LO_HASH_SIZE;
+ 			}
+ 			s_oid = oid / LO_HASH_SIZE;
+ 			bufsize = strlen(relname) + pw * (LO_HASH_POWER + 1) + 4;
+ 			path = (char *) palloc(sizeof(char) * bufsize);
+ 			path[0] = relname[3];
+ 			path[1] = SEP_CHAR;
+ 			path[2] = 0;
+ 			pw = 2;
+ 			while (s_oid != 0) {
+ 			  snprintf(path + pw, LO_HASH_POWER + 2, "%03d%c", s_oid % LO_HASH_SIZE, SEP_CHAR);
+ 			  pw += (LO_HASH_POWER + 1);
+ 			  s_oid /= LO_HASH_SIZE;
+ 			}
+ 			snprintf(path + pw, bufsize - pw, "%s", relname);
+ 			return path;
+ 		}
+ 	  }
  	/*
  	 * If it is in the current database, assume it is in current working
  	 * directory.  NB: this does not work during bootstrap!
Index: src/backend/storage/large_object/inv_api.c
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/src/backend/storage/large_object/inv_api.c,v
retrieving revision 1.69
diff -c -r1.69 inv_api.c
*** src/backend/storage/large_object/inv_api.c	2000/06/05 07:28:45	1.69
--- src/backend/storage/large_object/inv_api.c	2000/06/11 06:15:50
***************
*** 34,39 ****
--- 34,41 ----
  #include "utils/fmgroids.h"
  #include "utils/relcache.h"
  
+ #include <errno.h>
+ 
  /*
   *	Warning, Will Robinson...  In order to pack data into an inversion
   *	file as densely as possible, we violate the class abstraction here.
***************
*** 96,101 ****
--- 98,106 ----
  	Oid			classObjectId[1];
  	char		objname[NAMEDATALEN];
  	char		indname[NAMEDATALEN];
+ 	Oid		s_oid;
+ 	int		pw = 0;
+ 	size_t		dirsize;
  
  	/*
  	 * add one here since the pg_class tuple created will have the next
***************
*** 132,137 ****
--- 137,180 ----
  					   BYTEAOID,
  					   -1, 0, false);
  
+ 	s_oid = file_oid;
+ 	while (s_oid != 0) {
+ 	        pw++;
+ 		s_oid /= LO_HASH_SIZE;
+ 	}
+ 	dirsize = pw * (LO_HASH_POWER + 1) + 2;
+ 	
+ 	{
+ 		char		dirname[dirsize];
+ 		struct stat	st;
+ 		
+ 		dirname[1] = 0;
+ 		pw = 1;
+ 		s_oid = file_oid;
+ 		for(; ; ) {
+ 			dirname[0] = 'v';
+ 			if (stat(dirname, &st) == -1) {
+ 				if (errno == ENOENT) {
+ 					if (mkdir(dirname, S_IRWXU) != 0)
+ 				                elog(ERROR, "lo_create: unable to create large object directory '%s': %s", dirname, strerror(errno));
+ 				} else
+ 				        elog(ERROR, "lo_create: unable to stat large object directory '%s': %s", dirname, strerror(errno));
+ 			}
+ 			dirname[0] = 'x';
+ 			if (stat(dirname, &st) == -1) {
+ 				if (errno == ENOENT) {
+ 					if (mkdir(dirname, S_IRWXU) != 0)
+ 				                elog(ERROR, "lo_create: unable to create large object directory '%s': %s", dirname, strerror(errno));
+ 				} else
+ 				        elog(ERROR, "lo_create: unable to stat large object directory '%s': %s", dirname, strerror(errno));
+ 			}
+ 			s_oid /= LO_HASH_SIZE;
+ 			if (s_oid == 0)
+ 				break;
+ 			snprintf(dirname + pw, LO_HASH_POWER + 2, "%c%02d", SEP_CHAR, s_oid % LO_HASH_SIZE);
+ 			pw += (LO_HASH_SIZE + 1);
+ 		}
+ 	}
  	/*
  	 * First create the table to hold the inversion large object.  It will
  	 * be located on whatever storage manager the user requested.
Index: src/include/config.h.in
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/src/include/config.h.in,v
retrieving revision 1.117
diff -c -r1.117 config.h.in
*** src/include/config.h.in	2000/06/09 16:03:07	1.117
--- src/include/config.h.in	2000/06/11 06:15:53
***************
*** 174,179 ****
--- 174,186 ----
   */
  #define DEFAULT_MAX_EXPR_DEPTH	10000
  
+ /*
+  * LO_HASH_SIZE determines max amount of large objects in one dir.
+  * LO_HASH_POWER is the exponent of LO_HASH_SIZE with base 10.
+  */
+  
+ #define LO_HASH_SIZE 1000
+ #define LO_HASH_POWER 3
  
  /*
   *------------------------------------------------------------------------