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I've got a weird bug with the MySQL prompt which has always annoyed me. Sometimes when I type for example:

mysql > select * from users where

I will press backspace and the prompt will suddenly look broken like this:

mysql > mysql > om users wher

It will basically add a mysql > before and overwrite part of the query. Internally the query is still valid (if I finish it and press enter it will work) but it's the display that's broken.

I'm wondering what could be causing this? Is there any way to prevent it?

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    Do you have an ~/.inputrc file with something in it that may be influencing the way that the Readline library handles the command line? (I believe that the mysql client uses Readline) – Kusalananda Sep 13 '17 at 15:21
  • Are you using a colorized bash prompt? This can cause readline to do weird things as well. – datUser Sep 13 '17 at 17:39
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I had this issue and discovered (thanks to @datUser) that colourisation can cause lots of weird things to happen in terminals. You can remove this for execution of a single command by prefixing it with '\' so try starting mysql using \mysql. That worked for me.

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