This article is referenced from stackoverflow:
If installed PostgreSQL with homebrew , enter brew uninstall postgresql
If you used the EnterpriseDB installer , follow the following step.
Run the uninstaller on terminal window
sudo /Library/PostgreSQL/9.X/uninstall-postgresql.app/Contents/MacOS/installbuilder.sh
If installed with Postgres Installer, do:
open /Library/PostgreSQL/9.X/uninstall-postgresql.app
Remove the PostgreSQL and data folders. The Wizard will notify you that these were not removed.
sudo rm -rf /Library/PostgreSQL
Remove the ini file:
sudo rm /etc/postgres-reg.ini
Remove the PostgreSQL user using System Preferences -> Users & Groups.
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Unlock the settings panel by clicking on the padlock and entering your password.
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Select the PostgreSQL user and click on the minus button.
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Restore your shared memory settings: sudo rm /etc/sysctl.conf
本文转自 h2appy 51CTO博客，原文链接：http://blog.51cto.com/h2appy/1860812，如需转载请自行联系原作者
