Company
Date Published
Author
Bryn Llewellyn
Word count
5188
Language
English
Hacker News points
None

Summary

The key points of the text are that the author, who is familiar with PostgreSQL and YugabyteDB, presents a solution to the Bacon Numbers problem using recursive Common Table Expressions (CTEs) in both databases. The Bacon Numbers problem involves finding the shortest chain of connections between two actors in a movie database, where an actor's Bacon Number is the length of the shortest chain connecting them to Kevin Bacon. The author explains how to use recursive CTEs to solve this problem in both PostgreSQL and YugabyteDB, highlighting similarities and differences between the approaches used for hierarchical and cyclic graphs. They also discuss the importance of early pruning in solving large-scale problems like this one.