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On 11/01/2012 08:41 AM, Kevin Burton
wrote:
Which exact OS/distribution/PostgreSQL-version are you using and how was PostgreSQL installed (OS-provided or 3rd-party)? The different packagers deal with things in a variety of ways almost all of which are different than how PostgreSQL will be installed if compiling from source with default options. Ubuntu, for example, will typically include a (non-PostgreSQL-provided) helper package called postgresql-common which is designed to ease running multiple versions of PostgreSQL on a single machine. It also allows different users to connect to different clusters and has some version-to-version update facilities (which were more important in the pre-pg_upgrade era). In Ubuntu, therefore, executables, data and configuration are in version-specific subdirectories (/usr/lib/postgresql/VERSION/..., /etc/postgresql/VERSION/..., /var/lib/postgresql/VERSION/...) and commands like "createdb" (/usr/bin/createdb) are actually links to /usr/share/postgresql-common/pg_wrapper which loads the appropriate user/version-specific executable (e.g. /usr/lib/postgresql/9.1/bin/createdb). But RHEL/CentOS has a somewhat different layout as do other distributions and OSs and the layouts have evolved over time so what was correct for, say, Ubuntu 9.04 will differ from 12.10. Similarly, a general installer like EnterpriseDB's one-click installer will use a different layout than the distribution-specific installations. Cheers, Steve |
