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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