I'm building a relational lang (that could feel like a in memory db) and explored the idea of using a columnar backed structures. How well could be apply the s

I'm building a relational lang (that could feel like a in memory db) and explored the idea of using a columnar backed structures. How well could be apply the same ideas for in-memory processing? If I understand correctly, you have something alike: - Store each column on a array of N=1000 - Store the group of columns in pages, with metadata of ranges of keys to locate rows in the adequate page