Efficient way to ensure unique rows in SQLite3

Question

I am using SQLite3 in one of my projects and I need to ensure that the rows that are inserted into a table are unique with regard to a combination of some of their columns. In m

Answer 1

In addition to all the other great answers, one thing that you can do is partition data into several tables.

SQLite INSERTs get slower and slower as the number of rows increases, but if you can split a table into several ones that effect is diminished (e.g.: "names" -> "names_a", "names_b", ... for names starting with the letter x). Later on, you can do CREATE VIEW "names" AS SELECT * FROM "names_a" UNION SELECT * FROM "names_b" UNION ....