viktorianer

viktorianer

High Performance PostgreSQL for Rails: Contains non-printing unicode characters

I found it challenging to use code examples from this book, particularly because the queries containing non-printing Unicode characters. E.g.,

epub book:

rideshare_development=> REINDEX ​INDEX​ index_users_on_email;
ERROR:  syntax error at or near "​INDEX​"
LINE 1: REINDEX ​INDEX​ index_users_on_email;
                ^
Time: 0.917 ms

pdf book:

rideshare_development=> REINDEX INDEX index_users_on_email;
REINDEX
Time: 5906.267 ms (00:05.906)

Is there any way, to create epub format book, with printing Unicode characters only?

Thanks a lot!
Viktor

Marked As Solved

viktorianer

viktorianer

Oh, I just realized that you can click on each example to download the code :blush:. Did I miss this feature because I’ve been using the book without internet access? Or is there an explanation for this in the book that I might have overlooked?

Anyway, downloading the examples does help solve this problem, as I will go back to the code on my notebook eventually.

Initially, I was looking for the files in the repository itself and was surprised not to find those examples there. It was a bit frustrating not to find those files directly. Now, with the link, I understand why they are not included. :smiley:

But isn’t the book repository the best place for those code examples?

Also Liked

viktorianer

viktorianer

Hi Andrew,

Thank you for your response and suggestion.

I understand that the recommended approach is to download the code sample directory separately and work with the text files from there.

However, I’m actually using the epub format because I primarily use a Kindle for reading. The book seems to be generally written with the approach of going to the posts and code on the web, which doesn’t work well for me as I often read while on the go with my Kindle and don’t have access to those resources.

My current approach is to read as much as possible in the book and take notes along the way. When I’m back at my notebook, I then start again with the examples and links to posts.

It’s not the best method, but it works to some extent. Ideally, I would prefer to have the examples directly in the book for convenience.

I would appreciate any further suggestions or adjustments that could make the code examples more accessible within the epub format.

Thank you again for your help and understanding.

Best regards,

Viktor

Where Next?

Popular Pragmatic Bookshelf topics Top

Chrichton
Dear Sophie. I tried to do the “Authorization” exercise and have two questions: When trying to plug in an email-service, I found the ...
New
curtosis
Running mix deps.get in the sensor_hub directory fails with the following error: ** (Mix) No SSH public keys found in ~/.ssh. An ssh aut...
New
oaklandgit
Hi, I completed chapter 6 but am getting the following error when running: thread 'main' panicked at 'Failed to load texture: IoError(O...
New
dsmith42
Hey there, I’m enjoying this book and have learned a few things alredayd. However, in Chapter 4 I believe we are meant to see the “>...
New
taguniversalmachine
Hi, I am getting an error I cannot figure out on my test. I have what I think is the exact code from the book, other than I changed “us...
New
jonmac
The allprojects block listed on page 245 produces the following error when syncing gradle: “org.gradle.api.GradleScriptException: A prob...
New
jwandekoken
Book: Programming Phoenix LiveView, page 142 (157/378), file lib/pento_web/live/product_live/form_component.ex, in the function below: d...
New
andreheijstek
After running /bin/setup, the first error was: The foreman' command exists in these Ruby versions: That was easy to fix: gem install fore...
New
a.zampa
@mfazio23 I’m following the indications of the book and arriver ad chapter 10, but the app cannot be compiled due to an error in the Bas...
New
gorkaio
root_layout: {PentoWeb.LayoutView, :root}, This results in the following following error: no “root” html template defined for PentoWeb...
New

Other popular topics Top

New
PragmaticBookshelf
Rust is an exciting new programming language combining the power of C with memory safety, fearless concurrency, and productivity boosters...
New
AstonJ
Continuing the discussion from Thinking about learning Crystal, let’s discuss - I was wondering which languages don’t GC - maybe we can c...
New
rustkas
Intensively researching Erlang books and additional resources on it, I have found that the topic of using Regular Expressions is either c...
New
foxtrottwist
A few weeks ago I started using Warp a terminal written in rust. Though in it’s current state of development there are a few caveats (tab...
New
AstonJ
If you get Can't find emacs in your PATH when trying to install Doom Emacs on your Mac you… just… need to install Emacs first! :lol: bre...
New
PragmaticBookshelf
Build efficient applications that exploit the unique benefits of a pure functional language, learning from an engineer who uses Haskell t...
New
New
PragmaticBookshelf
Get the comprehensive, insider information you need for Rails 8 with the new edition of this award-winning classic. Sam Ruby @rubys ...
New
PragmaticBookshelf
Fight complexity and reclaim the original spirit of agility by learning to simplify how you develop software. The result: a more humane a...
New

Sub Categories: