title: Will the performance be worse if bitwise operations are used in MYSQL?
body: <p>There are several boolean columns in one table. For convenience in my code, I want to use one column to replace all of them. In the new column, each bit represents an original boolean column. But if I do like this, I must do bitwise operation in the where clause, so I can't use index for it.</p>
  
  <p>Will the performance be worse if bitwise operations are used in MYSQL?</p>