Sorry, Amazon DynamoDB is not column-based, and it is not OLAP

LORY
7 min readMay 1, 2024

Another interview story.

The story

It was an architect position.

Me: “Okay let’s start the interview Here you mentioned that redesigned the database and improved System performance by 50%, could you elaborate more ?”

A: “Sure, our existing database was MySQL and it was very slow when generating reports, we needed to move into a column-based database, so we looked into OLAP.”

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