It includes

-Support for mirroring tables in different Schema's
-Improved documentation for compiling with 7.1.x and 7.2.x
-Fixes a buffer overrun bug.

Steven Singer

contrib/dbmirror/README.dbmirror

@@ -46,6 +46,7 @@ Pending tables.
 Installation Instructions
 ------------------------------------------------------------------------
 
+
 1) Compile pending.c
 
 The file pending.c contains the recordchange trigger.  This runs every
@@ -54,20 +55,35 @@ time a row inside of a table being mirrored changes.
 
 To build the trigger run  make on the "Makefile" in the DBMirror directory.
 
-The Makefile supplied assumes that the postgres include files are in 
-/usr/local/pgsql/include/server.  
+Postgres-7.3 Make Instructions:
+
+  If you have already run "configure" in the pgsql-server directory 
+  then run "make" in the dbmirror directory to compile the trigger.
+
+Postgres-7.1 & Postgres-7.2 Make Instructions:
+
+  The included Makefile is not compatible with postgres 7.1 and 7.2
+  The trigger will need to be built by hand.
+
+  Run the following commands
+
+  gcc -fpic -I/usr/local/pgsql/include/server -c pending.c -DNOSCHEMAS
+  ld -shared -o pending.so pending.o
+
+  Assuming the postgres include files are in /usr/local/pgsql/include/server.  
 
 Postgres-7.1.x installations should change this to
 /usr/local/pgsql/include  (The server part is for 7.2+)
 
 If you have installed the postgres include files to another location then
-modify the Makefile to reflect this.
+  modify the include path to reflect this.
 
-The trigger requires that all postgres headers be installed, this is
-accomplished in postgresql(7.1 or 7.2) by running "make install-all-headers"
-in the postgres source directory.
+  Compiling the trigger by hand requires that all postgres headers be installed
+  ,this is accomplished in postgresql(7.1 or 7.2) by running 
+  "make install-all-headers" in the postgres source directory.
 
-The Makefile should create a file named pending.so that contains the trigger.
+
+You should now have a file named pending.so that contains the trigger.
 
 Install this file in /usr/local/pgsql/lib  (or another suitable location).
 
@@ -93,6 +109,15 @@ To execute the script use psql as follows
 where MyDatabaseName is the name of the database you wish to install mirroring
 on(Your master).
 
+Postgres-7.1 and 7.2 Notes:
+  -The syntax for creating a trigger function changed in Postgres-7.3. 
+  Change the line in MirrorSetup.sql from 
+
+  CREATE FUNCTION "recordchange" () RETURNS trigger AS
+
+  to 
+  CREATE FUNCTION "recordchange" () RETURNS OPAQUE AS
+
 
 3) Create slaveDatabase.conf files.
 
@@ -199,6 +224,7 @@ RedHat Linux 7.1 & 6.2
 
 Mandrake Linux 8.0(Limited Testing)
  -Postgres 7.2
+ -Postgres 7.3
  -Perl 5.6