0. The problem When I hear the term fuzzy searching, I think of high computation cost, but this is not always the case. In the great book Art of Computer Programming by D. Knuth, vol. 3, ch. 6: Searching we can read about the soundex algorithm. It was originally used to deal with misspelled EnglishContinue reading “Poor man’s fuzzy search”
Author Archives: andronicust
Java’s type parameter’s and wildcard’s (lack of) equivalence
Yet another post based on an interesting question I have encountered on StackOverflow quite a while ago. But let us start with a slightly different thing. Once upon a time there was a question: what is the difference between ? extends Sometype and T extends Sometype? For example: <? extends Number> and <T extends Number>Continue reading “Java’s type parameter’s and wildcard’s (lack of) equivalence”
Top mistakes when working with JPA (Hibernate) and SQL [PL]
Recently I have given a talk about top (in my opinion) performance issues we are challenged with when working with JPA (Hibernate) and SQL (Postgres, Oracle). The talk is in polish.
Calculating moving median in Postgres
0. The problem Some time ago I’ve stumbled on this interesting question on stackoverflow (as stated in the title). I could not find any satisfactory answer at that time, so I came up with this solution. I think the problem is interesting enough to make it into a blog post. The following table shows theContinue reading “Calculating moving median in Postgres”
Hello world
Most of the adventures in the IT world start with the hello-world project. In this post I’d like to introduce myself and highlight the topics I’ll cover here. My name is Jędrzej. Currently, I live in Wrocław, Poland. I’m a full-stack developer at iteratec, where my main responsibility is to develop a backend of aContinue reading “Hello world”
