Questions:
- Can it be better to get one key to each column, a combo of columns depending on the combinations required in a question, or a set of columns under one key?
- does with all the above mentioned affect the speed/efficiency of this question, versus only with the keys needed according to the EXPLAIN outputsignal?
- Are there any ways to utilize indexes/keys INCORRECTLY that will interfere with the operation greater than simply not using them?
Thank you!
omegle online chat
