package postgresql-client-8.3 8.3.8-1 failed to install/upgrade: sub-processo script post-installation instalado retornou estado de sa?da de erro 2

[eduardo.orige]

Binary package hint: postgresql-8.3

Description: Ubuntu 9.10
Release: 9.10

i installed postgresql 8.4 but don't job with he, so i removed with command
apt-get remove postgresql-8.4 and after i try install postgresql-8.3 or other version but the error occured.
I can't install postgresql .
The system inform what a error of dependencies occurred.I try too deinstall all postgresql with synaptic but don't work too.

ProblemType: Package
AptOrdering:
 postgresql-client-8.3: Install
 postgresql-8.3: Install
 postgresql-client-8.3: Configure
 postgresql-8.3: Configure
Architecture: i386
Date: Sun Dec 27 01:41:50 2009
DistroRelease: Ubuntu 9.10
ErrorMessage: sub-processo script post-installation instalado retornou estado de saída de erro 2
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: postgresql-client-8.3 8.3.8-1
ProcVersionSignature: Ubuntu 2.6.31-16.53-generic
SourcePackage: postgresql-8.3
Title: package postgresql-client-8.3 8.3.8-1 failed to install/upgrade: sub-processo script post-installation instalado retornou estado de saída de erro 2
Uname: Linux 2.6.31-16-generic i686

[Martin Pitt (pitti)]

Somehow you broke your system. You do not have postgresql-common installed, but postgresql-8.3 has a hard dependency on it (i. e. the normal package management tools don't even allow you to do that). Please install postgresql-common again, then everything should be fine again.