ruby-pg VS chruby

If you installed Postgres via Homebrew, you need to configure bundler so that when it installs the pg gem, it knows where to find the pg_config executable, which is installed as part of Postgres. The pg gem is the Ruby interface to Postgres and requires pg_config during installation. We can use this command to configure bundler so that it can find it and successfully install pg.

Before we proceed, are you aware that a lot of popular database drivers for Ruby (and Python? not sure) implement the performance-critical bits in good old natively compiled C?

For example, the Ruby postgres gem: https://github.com/ged/ruby-pg/tree/master/ext

(I wasn't sure until I checked just now, so I'm not questioning your familiarity with the tech. Just not sure if that's commonly known)

    So no, it's not the database, it's your interpreted language.

$ gem info pg *** LOCAL GEMS *** pg (1.3.4) Authors: Michael Granger, Lars Kanis Homepage: https://github.com/ged/ruby-pg License: BSD-2-Clause Installed at: /Users/jvon1904/.rvm/gems/ruby-3.0.3 Pg is the Ruby interface to the PostgreSQL RDBMS

The low level pg gem has support for Postgres streaming, but this is row-based. You're wanting to stream effectively from a single field, which Postgres won't do for you.

The ruby-pg gem provides an interface between your Ruby code and your PostgreSQL database.

set RUBY_DLL_PATH=/bin as in our CI before running the ruby app.

> each is in its own OS thread and GVL releases when the thread blocks.

The GVL isn't automatically released when a thread blocks on IO. Each bit of native code performing IO has to explicitly release it like in the pg gem here: https://github.com/ged/ruby-pg/blob/fb465855ce1dd12cf7eb69c9...

Let’s get started. I prefer to manage my Ruby installations on my development machine with chruby paired with ruby-install. Another outstanding set of tools is rbenv with ruby-build. I highly recommend installing Ruby with one of those two sets of tools. Follow the instructions on their project’s READMEs. For this article, I’ll be running Ruby (MRI) v3.3.0.

To fix this, you’d need to install Ruby correctly using a version manager such as chruby. You’d need to install Homebrew on your Mac first using the command below in your terminal:

Now about the second point on the complexity of the shim strategy (cf. the rbenv implementation) with respect to the PATH update strategy (cf. the chruby implementation), what do you think?

I don’t want any of the bells & whistles that come with rvm and rbenv; I prefer the simplicity of chruby. I’ve used it for 10 years (is that possible?!) and I’ve never cursed at it.

When you type chruby, the function is executed. If it doesn't do what you expect, it's either an issue with the function or your expectations aren't warranted. In any case you'll need to seek help from people who supplied you with this function. If your chrubby function is this one, you can ask from help on https://github.com/postmodern/chruby.

I knew I saw your username somewhere in my investigation: Properly handle gems installed via --user-install.

I use homebrew, chruby, and ruby-install.