In this episode of the backend engineering show I'll discuss the difference between b-tree and b+tree why they were invented, what problems do they solve, and the advantages and disadvantages of both. I'll also discuss the limitation of implementing b-tree over b+tree and how Discord ran into a memory limitation using b-tree Mongo.

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https://husseinnasser.com/courses

Learn the fundamentals of database systems to understand and build performant backend apps

Chapters
0:00 Data structure and algorithms
1:30 Working with large datasets
6:00 Binary Tree
8:30 B-tree
19:30 B+ tree
22:00 B-tree vs B+ tree benefits
25:00 MongoDB Btree Indexes Trouble
30:00 Summary


working with a billion-row table (Members only)
   • Best Practices Working with Billion-r...  

indexing video
   • Database Indexing Explained (with Pos...  

Discord moving from MongoDB to Cassandra
   • Why Discord Moved from MongoDB to Apa...  
  / discord  
MongoDB Indexes
https://docs.mongodb.com/manual/indexes/
Postgres Indexes
https://www.postgresql.org/docs/13/bt...

b-tree code from ‪@usfcalifornia‬
https://www.cs.usfca.edu/~galles/visu...
b+tree
https://www.cs.usfca.edu/~galles/visu...



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💾 Database Engineering Videos
   • Database Engineering  

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Stay Awesome,
Hussein