PostgreSQL LaunchDaemon

org.postgresql.postmaster.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>org.postgresql.postmaster</string>

    <key>RunAtLoad</key>
    <true />

    <key>UserName</key>
    <string>_postgres</string>

    <key>GroupName</key>
    <string>_postgres</string>

    <key>EnvironmentVariables</key>
    <dict>
      <key>PGDATA</key>
      <string>/usr/local/pgsql/data</string>
    </dict>

    <key>ProgramArguments</key>
    <array>
      <string>/usr/local/pgsql/bin/postmaster</string>
    </array>

    <key>StandardOutPath</key>
    <string>/usr/local/pgsql/logfile</string>

    <key>StandardErrorPath</key>
    <string>/usr/local/pgsql/logfile</string>
  </dict>
</plist>