If something is starting at boot, it's probably located in a LaunchAgents folder you can see with the `ps auxw | grep postgres`. If you've ever installed PostgreSQL before you might want to reboot and check again, to make sure it's not starting at boot. If there are more results than that, you need to find the existing PostgreSQL installation and make sure it is shut down. The result should look something like this:ĭyld: DYLD_ environment variables being ignored because main executable (/bin/ps) is setuid or setgid Make sure that there are no existing installations of PostgreSQL running. If you used the EnterpriseDB installer, find and run uninstall-postgres.app. If via macports, run sudo port uninstall postgres. If you installed via homebrew, run brew remove postgresql. If you've installed PostgreSQL previously, uninstall it. (You might find that running something like Ubuntu, possibly in a virtual machine such as VMWare Fusion or VirtualBox more convenient.) If any of these describe you, this isn't what you want. You want to use embedded languages other than PL/pgSQL or PL/v8 Javascript.You're developing extensions to PostgreSQL.You want to modify core PostgreSQL code.You need your database to be available when you're not logged in.You're deploying a production (as opposed to development or QA) database.If any of these describe you, and you use OS X, keep reading. You want to use PostGIS for Geographical Information work.You want a solid database running on your laptop for data analysis.You're developing desktop applications intended to connect to PostgreSQL.You're developing web applications that use PostgreSQL as a database.This document intends to make that process simpler, by offering a single good solution rather than many alternatives. If the user installs two conflicting installations that can lead to PostgreSQL mysteriously breaking, or appearing to lose data after a reboot. The different installations are subtly incompatible - the clients from one won't connect to the server from another without additional configuration - and which server will "win" and start up correctly on a reboot isn't terribly well defined. That variety is good in that the different installations have advantages and disadvantages, but it makes starting with PostgreSQL on OS X much more complex than it needs to be, particularly for beginners who just want to get a database up and running. There are many different ways to install and use PostgreSQL on OS X. 2.4 Accessing the database from other applications.
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