GitHub user maryannxue opened a pull request: https://github.com/apache/phoenix/pull/281
PHOENIX-4288 Indexes not used when ordering by primary key 1. Add class Cost. 2. Add method getCost() in QueryPlan. 3. Let QueryOptimizer choose the best plan based on Cost; meanwhile if stats are not available the QueryOptimizer will keep the original behavior. You can merge this pull request into a Git repository by running: $ git pull https://github.com/maryannxue/phoenix phoenix-4388 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/phoenix/pull/281.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #281 ---- commit f75c1b095683c153f8749107c5505304309dcb36 Author: maryannxue <maryann....@gmail.com> Date: 2017-11-07T21:40:37Z PHOENIX-4288 Indexes not used when ordering by primary key ---- ---