Dba: Why is MySQL not using the index with the higher cardinality?

Channel:
Peter Schneider
Subscribers:
4,440
Published on ● Video Link: https://www.youtube.com/watch?v=9mXIXyF8ZnM


Duration: 0:00
3 views
2

Why is MySQL not using the index with the higher cardinality?
I hope you found a solution that worked for you :)
The Content is licensed under (https://meta.stackexchange.com/help/licensing) CC BY-SA.
Attention! This video does always use the same license as the source!
Thanks to all those great people for their contributions!

(dba.stackexchange.com/users/37011/rayhan-muktader)Rayhan Muktader
(dba.stackexchange.com/users/877/rolandomysqldba)RolandoMySQLDBA
(dba.stackexchange.com/users/33041/alexandros)Alexandros
A special thanks goes out to the (dba.stackexchange.com/questions/63047/why-is-mysql-not-using-the-index-with-the-higher-cardinality)Stackexchange community

I wish you all a wonderful day! Stay safe :)
If anything is off, please write me at peter D.O.T schneider A.T ois42.de

mysql myisam index mysql-5



Other Videos By Peter Schneider


2024-12-29Mount needs manual action after each reboot for it to work
2024-12-29Security: CSP: no sandbox, or sandbox with Access-Control-Allow-Origin: "null"?
2024-12-29Tex: How can I put node at center (left or right) of a tikzpicture automatically?
2024-12-29Security: Is it bad practice to state the purpose of a verification code?
2024-12-29Do I really have to have my ISP's router?
2024-12-29Networkengineering: Why isn't the instantaneous rate of sender considered during the congestion c...
2024-12-29How can I sort a vector of floats in Rust?
2024-12-29Unix: Hundreds of strange connections in iftop
2024-12-29How to hide "/" character delimiter in total time when using the native audio player in Chromium ...
2024-12-29Electronics: What circuit could I use to extract energy from a 4-20mA signal?
2024-12-28Dba: Why is MySQL not using the index with the higher cardinality?
2024-12-27Bitcoin: How to generate a native Segwit address and P2SH Segwit address from a standard WIF?
2024-12-27Bitcoin: Bulletproof++ as generic ZKP à la SNARKs?
2024-12-27Bitcoin: What prevents miners from mining more bitcoin after 21million btc?
2024-12-27Bitcoin: Should I verify the Bitcoin Core release signing keys?
2024-12-27Codereview: Sending activation email for sqlmembership
2024-12-27Bitcoin: non-mandatory-script-verify-flag (Invalid Schnorr signature) when I try to send a P2TR t...
2024-12-27Bitcoin: What is 'birthday' in the context of BIP39 / Lightning seed generation?
2024-12-27Codereview: Simple yet Hackable WhatsApp API UNOFFICIAL
2024-12-27Codereview: Game of Tic-Tac-Toe
2024-12-27Bitcoin: Is there a way to disable a blockchain validation?