Myth Directory


In an attempt to thin out the dark woods of database performance myths, I list and explain some of the most common myth and misbeliefs here.

About the Author

Photo of Markus Winand
Markus Winand tunes developers for high SQL performance. He also published the book SQL Performance Explained and offers in-house training as well as remote coaching at http://winand.at/

?Recent questions at
Ask.Use-The-Index-Luke.com

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PostgreSQL Bitmap Heap Scan on index is very slow but Index Only Scan is fast

13 hours ago Markus Winand ♦♦ 881
index postgresql postgres sql
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pagination with nulls

2 days ago Rocky 46
pagination
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