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Installing Postgres via Brew (OSX)

Installing Postgres via Brew

Pre-Reqs

Brew Package Manager

In your command-line run the following commands:

  1. brew doctor
  2. brew update

Installing

  1. In your command-line run the command: brew install postgresql

  2. Run the command: ln -sfv /usr/local/opt/postgresql/*.plist ~/Library/LaunchAgents

  3. Create two new aliases to start and stop your postgres server. They could look something like this:

    alias pg_start="launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist"
    alias pg_stop="launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist"
    
  4. Run the alias you just created: pg_start. Use this comment to start your database service.

    • alternatively, pg_stop stops your database service.
  5. Run the command: createdb `whoami`

  6. Connect to your postgres with the command: psql

  7. brew reinstall readline - if needed

  8. createuser -s postgres - fixes role "postgres" does not exist

  9. Test with psql command

    $ psql
    psql (10.0)
    Type "help" for help.
    
    ibraheem=# 
    

Details

What is this ln command I ran in my Terminal?

from the man ln command

The ln utility creates a new directory entry (linked file) which has the same modes as the original file. It is useful for maintaining multiple copies of a file in many places at once without using up storage for the copies''; instead, a link points'' to the original copy. There are two types of links; hard links and symbolic links. How a link ``points'' to a file is one of the differences between a hard and symbolic link.

What is launchctl?

from the man launchctl command

launchctl interfaces with launchd to manage and inspect daemons, angents and XPC services.

Commands

Create database

createdb <database_name>

createdb mydjangoproject_development

List databases

psql -U postgres -l

Show tables in database

psql -U postgres -d <database_name>

psql -U postgres -d mydjangoproject_development

Drop database

dropdb <database_name>

dropdb mydjangoproject_development

Restart database

dropdb <database_name> && createdb <database_name>

dropdb mydjangoproject_development && createdb mydjangoproject_development

@nydiarra

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nydiarra commented Aug 20, 2018

I like your post. Very useful.

@Piglacquer

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Piglacquer commented Sep 10, 2018

Nice post, one little typo: Between steps 3 & 4 the aliases are different. Step 3 is pg_start // pg_stop, and step 4 is pg-start // pg-stop. Thanks!

@sandro-git

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sandro-git commented Sep 22, 2018

thanks it help me a lot

@leftsider

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leftsider commented Oct 17, 2018

Simple and clear. Cheers!

@cyzanfar

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cyzanfar commented Oct 18, 2018

awesome stuffffff

@Darius-Ndubi

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Darius-Ndubi commented Nov 6, 2018

Works like a charm.

@sergeev

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sergeev commented Nov 21, 2018

Thx! очень помогли!

@Physsi07

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Physsi07 commented Dec 11, 2018

Super helpful, thank you so much 👍 💯

@Sylvance

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Sylvance commented Dec 13, 2018

Works like a charm.

True.

@balanka

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balanka commented Dec 31, 2018

Login as default PostgreSQL user (postgres)

sudo -u postgres -i

@BesatZardosht

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BesatZardosht commented Jan 9, 2019

I had to change step 3 to make it work:

alias pg_start="launchctl load ~/Library/LaunchAgents"
alias pg_stop="launchctl unload ~/Library/LaunchAgents"
@AyoAlfonso

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AyoAlfonso commented Jan 17, 2019

I think you meant to write 'pg_start' you wrote 'pg-start' instead.
Thanks for this guide Ibraheem.

@rajeshksv

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rajeshksv commented Jan 27, 2019

7th step - Read carefully. Don't reinstall readline until and unless needed.

I did it and it broke my whole system. Bash, Awk commands stopped working. Had to do "brew upgrade" to fix the issue.

@meniltiac

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meniltiac commented Feb 5, 2019

Thanks so much for putting this together! It looks like the brew command has been updated, though. It's now brew install postgres and not brew install postgresql.

@ibraheem4

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ibraheem4 commented Feb 16, 2019

Nice post, one little typo: Between steps 3 & 4 the aliases are different. Step 3 is pg_start // pg_stop, and step 4 is pg-start // pg-stop. Thanks!

Thanks for catching this, updated :)

@ibraheem4

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ibraheem4 commented Feb 16, 2019

7th step - Read carefully. Don't reinstall readline until and unless needed.

I did it and it broke my whole system. Bash, Awk commands stopped working. Had to do "brew upgrade" to fix the issue.

Thanks for the comment, I've bolded if needed so hopefully others don't have this issue.

@ibraheem4

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ibraheem4 commented Feb 16, 2019

Thanks so much for putting this together! It looks like the brew command has been updated, though. It's now brew install postgres and not brew install postgresql.

Thanks for the comment, I've updated to postgres instead of postgresql since it's the latest / greatest naming :)

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