when indexes are useless | The Backend Engineering Show

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In this episode of the backend engineering show, I’ll discuss three instances where indexes can be useless and might add overhead to your operations. Let us discuss.

0:00 Intro

1:34 What is an Index?

4:00 The Cost of Indexes

6:40 Most values are the similar

13:00 WHERE UPPER(NAME)=‘RICK’

17:10 Composite Index

23:00 How do I know if I’m using an Index