0
votes
3answers
369 views

MySQL InnoDB Sorting Issue

I was surprised to see MySQL's InnoDB showing an interesting behavior, which I cannot fully explain. According to the official MySQL InnoDB Documentation: "All indexes other than the clustered ...
1
vote
1answer
558 views

Sorting Result state taking very long time

I am using a MySQL 5.1.69-log DB for analysis purpose. I've designed my database in a star schema. All tables are using InnoDB. My innodb_buffer_pool_size=2Gb This is the query I am running : ...
1
vote
1answer
225 views

Index strategy for a Queue Table, getting rid of filesort

I am trying to get rid of a filesort operation (and preferably also optimize a bottleneck query). We are using an innodb mysql table as a queue to process various incoming business activities. It is ...
2
votes
1answer
101 views

Are two indexes needed?

Our MySQL database will contain an encyclopedia. The encyclopedia will be shown in pages where every page contains entries starting from a letter. Which indexes should I use? Should I have two ...