Bug 141579

Release 1.2.20

- Fix problem with logging where vsnprintf would, with very large
  output, clobber the byte after malloc()ed output               

- Change "long long" to "int64"


Release 1.2.19

- fix problem (noticed by Vivek Khera) with drop_if_exists() handling
  of schemas                                                         

- Duct tape test altered to bump event serial number to a near-2^31-1
  level in order that things that might break will break upon that   
  rollover.  Also altered to run "update functions."                 

Release 1.2.18

- autoconf change + change to src/backend/slony1_funcs.c to accomodate
  change in # of arguments for ScanKeywordLookup in PostgreSQL 8.5    

- Reloading of functions needs to have an emulation of
  "DROP FUNCTION IF EXISTS" because a couple of functions have had their
  return value type changed, which doesn't fit happily into             
  CREATE OR REPLACE FUNCTION.                                           

- Revisions to copyright notices to indicate 2009

- Fixing 8.4ism in SUBSCRIBE SET process - see <http://main.slony.info/viewcvs/viewvc.cgi/slony1-engine/src/slon/remote_worker.c?revision=1.124.2.39&view=markup&sortby=date&pathrev=REL_1_2_STABLE>

Release 1.2.17

- Apply changes to logshipper that went into the 2.0 branch but not
  1.2                                                              

- Change minimum debugging level to -1 to allow suppressing logging

- Bug #92 - compression of event numbers had a bug where events >
  2^31-1 would overflow the "int" value                          

- Fix to race condition where file descriptor copies were being made at
  the wrong time in the scheduler                                      

- Fix return types to use bigint when returning event #'s

- Establish compatibility with PostgreSQL 8.4:

  - autovac data is on pg_class rather than pg_autovacuum

  - Need to use GetActiveSnapshot() rather than expecting to have
    SerializableSnapshot in the backend                          

  - createdb needs to copy from template0 to ensure it can match locales

  - pg_class.reltriggers no longer exists in 8.4 and thus shouldn't be
    touched

Fix: Patch attached with submission follows: