After a sql error, the error message that is printed 
  is incorrect and does not include the postgresql error message.  
  It fixes #989

  This patch applies to Bacula version 2.2.5 (and previous versions),
  and can be applied with the following:

  cd <bacula-source>
  patch -p0 <2.2.5-postgresql-errors.patch
  ./configure (your options)
  make
  ...
  make install


Index: src/cats/cats.h
===================================================================
--- src/cats/cats.h	(révision 5763)
+++ src/cats/cats.h	(copie de travail)
@@ -498,7 +498,7 @@
 #define sql_fetch_row(x)      my_postgresql_fetch_row(x)
 #define sql_query(x, y)       my_postgresql_query((x), (y))
 #define sql_close(x)          PQfinish((x)->db)
-#define sql_strerror(x)       PQresultErrorMessage((x)->result)
+#define sql_strerror(x)       PQerrorMessage((x)->db)
 #define sql_num_rows(x)       ((unsigned) PQntuples((x)->result))
 #define sql_data_seek(x, i)   my_postgresql_data_seek((x), (i))
 #define sql_affected_rows(x)  ((unsigned) atoi(PQcmdTuples((x)->result)))