esqueleto
rure-go
Our great sponsors
esqueleto | rure-go | |
---|---|---|
5 | 2 | |
177 | 244 | |
0.0% | - | |
0.0 | 3.0 | |
over 7 years ago | 4 months ago | |
Haskell | Go | |
BSD 3-clause "New" or "Revised" License | The Unlicense |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
esqueleto
-
Revisiting Haskell after 10 years
Writing Haskell programs that rely on third-party packages is still an issue when it’s a not actively maintained package. They get out of date with the base library (Haskell’s standard library), and you might see yourself in a situation where you need to downgrade to an older version. This is not exclusive to Haskell, but it happens more often than I’d like to assume. However, if you only rely on known well-maintained libraries/frameworks such as Aeson, Squeleto, Yesod, and Parsec, to name a few, it’s unlikely you will face troubles at all, you just need to be more mindful of what you add as a dependency. There’s stackage.org now, a repository that works with Stack, providing a set of packages that are proven to work well together and help us to have reproducible builds in a more manageable way—not the solution for all the cases but it’s good to have it as an option.
-
What databases do you find the most productive to connect to Haskell?
Postgresql-simple is a great library, it makes a nice use of overloaded strings to do the job. Some other nice libraries to keep an eye on are opaleye (postgres specific, which is equally nice but could be a bit difficult to get why the types are so big) and a combination of persistent (not DB specific! can work on postgres, sqlite, but also noSQL DBs like mongo, it's still easy to learn but you lose some things, such as joins due to the power of being agnostic) + esqueleto for type safe joins (be sure to look up the experimental package, it's a more comfortable syntax that will soon become the default one).
-
Go performance from version 1.2 to 1.18
In Haskell: https://hackage.haskell.org/package/esqueleto
Either it analyzes the given SQL to determine the in/out types of each SQL query, or it calls the database describe feature at compile-time.
rure-go
-
Best regexp alternative for Go. Benchmarks. Plots.
rure-go (regex 1.9.3) - uses the Rust regex engine with CGo bindings. The downside is a Rust library dependency that needs to be compiled;
-
Go performance from version 1.2 to 1.18
Totally agreed: almost all users (me/GoAWK included) want performance and don't care nearly as much about simplicity under the hood. Simplicity of implementation is of value for educational purposes, but we could easily have a small, simple 3rd party package for that. Go's regexp package is kinda too complex for a simple educational demonstration and too simple to be fast. :-)
I actually tried BurntSushi's https://github.com/BurntSushi/rure-go (bindings to Rust's regex engine) with GoAWK and it made regex handling 4-5x as fast for many regexes, despite the CGo overhead. However, rure-go (and CGo in general) is a bit painful to build, so I'm not going to use that. Maybe I'll create a branch for speed freaks who want it.
I've also thought of using https://gitlab.com/cznic/ccgo to convert Mawk's fast regex engine to Go source and see how that performs. Maybe on the next rainy day...
What are some alternatives?
opaleye
yxdb-utils - Utilities for parsing Alteryx Database format
groundhog - This library maps datatypes to a relational model, in a way similar to what ORM libraries do in OOP. See the tutorial https://www.schoolofhaskell.com/user/lykahb/groundhog for introduction
hocilib - A lightweight Haskell binding to the OCILIB C API
beam - A type-safe, non-TH Haskell SQL library and ORM
mysql-simple - A mid-level client library for the MySQL database, intended to be fast and easy to use.
ampersand - Build database applications faster than anyone else, and keep your data pollution free as a bonus.
erd - Translates a plain text description of a relational database schema to a graphical entity-relationship diagram.
squeal-postgresql - Squeal, a deep embedding of SQL in Haskell
selda - A type-safe, high-level SQL library for Haskell
hasql - The fastest PostgreSQL libpq-based driver for Haskell
mysql-haskell - Pure haskell mysql driver