Relative path specified for data_directory is not working as expected

Eduard-Cristian Stefan <alexandrul.ct@xxxxxxxxx> · Thu, 23 Jun 2011 17:35:51 +0300

I have PostgreSQL 9.0.4-1 running as a service on Windows XP Home Edition,
with the command line of the service being:

    D:\me\usr\PostgreSQL\bin/pg_ctl.exe runservice -N "pgsql" -D "d:/me/etc/PostgreSQL"

In the postgresql.conf file I have the following settings:

    data_directory = '../../data/PostgreSQL'
    external_pid_file = '../../var/run/PostgreSQL.pid'
    log_directory = '../../var/log/PostgreSQL'

In this configuration the PostgreSQL service fails to start with the message:

    FATAL:  data directory "C:/WINDOWS/system32/../../data/PostgreSQL" does not exist

If using an absolute path for data_directory like this:

  data_directory = 'd:/me/data/PostgreSQL'

then the service starts ok, with the curent directory of pg_ctl.exe
being C:\WINDOWS\system32\, while the pid file and the logs
are set to the desired location.

I can confirm this behavior by running postgres.exe from the console,
and for relative paths the data_directory is relative to the current folder
from where postgres.exe is launched, and both external_pid_file and log_directory
are relative to the directory specified with the -D option of the command line.

For the record, there is no PGDATA environment variable defined.

Have a nice day,
  Eduard

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