databases

When writing the post on Unicode case-insensitive search in SQLite I got interested in the performance of application-defined functions and collations: they must introduce overhead, the question is how much and whether it is something to be concerned about. To answer these questions I made a simple test suite measuring the performance of both built-in SQLite and application-defined functions and collations – the full code is at the very end of the post....

Recently I needed a case-insensitive search in SQLite to check if an item with the same name already exists in one of my projects – listOK. At first, it looked like a simple task, but upon deeper dive, it turned out to be easy, but not simple at all, with many twists and turns. Built-in SQLite capabilities and their drawbacks In SQLite you can get a case-insensitive search in three ways:...