GitHub user sounakr opened a pull request: https://github.com/apache/carbondata/pull/1751
[WIP]Measure null Recognise Null values in blocklets so that it can help in filter prunning. - [ ] Any interfaces changed? - [ ] Any backward compatibility impacted? - [ ] Document update required? - [ ] Testing done Please provide details on - Whether new unit test cases have been added or why no new tests are required? - How it is tested? Please attach test report. - Is it a performance related change? Please attach the performance test report. - Any additional information to help reviewers in testing this change. - [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA. You can merge this pull request into a Git repository by running: $ git pull https://github.com/sounakr/incubator-carbondata measure_null Alternatively you can review and apply these changes as the patch at: https://github.com/apache/carbondata/pull/1751.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 #1751 ---- commit 7d0f9709578651ea29fda335663d1d0075091b62 Author: sounakr <sounakr@...> Date: 2017-12-29T13:44:03Z Measure Null Filter commit 82df440e98234661b8027f14c464da30e407f762 Author: sounakr <sounakr@...> Date: 2018-01-03T02:43:06Z Measure Null Value commit 67ea82d752605902fb94c73aa9b9bf31d2e9dafb Author: sounakr <sounakr@...> Date: 2018-01-03T03:06:39Z Measure Null Value ---- ---