State machines in Rust
Now that we've looked at what state machines are, and hopefully
convinced you of their usefulness, let's take a look at how to
implement them in Rust. Much of what I'm saying here was inspired by
Hoverbear's "Rust state machine pattern"
I recommend reading.
Machines, an article by
Useful Queries For PostgreSQL Index Maintenance
PostgreSQL has a rich set of indexing functionality, and there are
many articles explaining the syntax, usage, and value of the
index. In this article, I will write basic and useful queries to see
the state of database indexes.
Source: Useful Queries For PostgreSQL Index
an article by Ibrar Ahmed.
Falsehoods programmers believe about time
I have repeatedly been confounded to discover just how many mistakes
in both test and application code stem from misunderstandings or
misconceptions about time. By this I mean both the interesting way
in which computers handle time, and the fundamental gotchas inherent
in how we humans have constructed our calendar – daylight savings
being just the tip of the iceberg.
In fact I have seen so many of these misconceptions crop up in other
people’s (and my own) programs that I thought it would be worthwhile
to collect a list of the more common problems here.
Source: Falsehoods programmers believe about
an article by Noah Sussman.