[ https://issues.apache.org/jira/browse/NIFI-3268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15787701#comment-15787701 ]
ASF GitHub Bot commented on NIFI-3268: -------------------------------------- GitHub user qfdk opened a pull request: https://github.com/apache/nifi/pull/1376 NIFI-3268 Add AUTO_INCREMENT column in GenerateTableFetch to benefit index Thank you for submitting a contribution to Apache NiFi. In order to streamline the review of the contribution we ask you to ensure the following steps have been taken: ### For all changes: - [X] Is there a JIRA ticket associated with this PR? Is it referenced in the commit message? - [X] Does your PR title start with NIFI-XXXX where XXXX is the JIRA number you are trying to resolve? Pay particular attention to the hyphen "-" character. - [X] Has your PR been rebased against the latest commit within the target branch (typically master)? - [X] Is your initial contribution a single, squashed commit? ### For code changes: - [X] Have you ensured that the full suite of tests is executed via mvn -Pcontrib-check clean install at the root nifi folder? - [X] Have you written or updated unit tests to verify your changes? - [ ] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)? - [ ] If applicable, have you updated the LICENSE file, including the main LICENSE file under nifi-assembly? - [ ] If applicable, have you updated the NOTICE file, including the main NOTICE file found under nifi-assembly? - [ ] If adding new Properties, have you added .displayName in addition to .name (programmatic access) for each of the new properties? ### For documentation related changes: - [ ] Have you ensured that format looks appropriate for the output in which it is rendered? ### Note: Please ensure that once the PR is submitted, you check travis-ci for build issues and submit an update to your PR as soon as possible. You can merge this pull request into a Git repository by running: $ git pull https://github.com/qfdk/nifi NIFI-JOUVE Alternatively you can review and apply these changes as the patch at: https://github.com/apache/nifi/pull/1376.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 #1376 ---- commit a488d4ae5f4212196ceb30bafae7f3050c5ff8cc Author: HAOZHI Li <lhao...@jouve.fr> Date: 2016-12-30T13:38:38Z Add AUTO_INCREMENT column in GenerateTableFetch to benefit index ---- > Add AUTO_INCREMENT column in GenerateTableFetch to benefit index > ---------------------------------------------------------------- > > Key: NIFI-3268 > URL: https://issues.apache.org/jira/browse/NIFI-3268 > Project: Apache NiFi > Issue Type: Improvement > Components: Core Framework > Affects Versions: 1.1.1 > Environment: - ubuntu 16.04 > - java version "1.8.0_111" > - Java(TM) SE Runtime Environment (build 1.8.0_111-b14) > - Java HotSpot(TM) 64-Bit Server VM (build 25.111-b14, mixed mode) > Reporter: qfdk > Labels: easyfix > Fix For: 1.2.0 > > > I added AUTO_INCREMENT column in GenerateTableFetch to benefit index column > By default this processor uses OFFSET, i have problems with large data. > somme column has index so we could use index to speed up query time. > I posted question here : > https://community.hortonworks.com/questions/72586/how-can-i-use-an-array-with-putelasticsearch.html > If you indexed un column (id), you could use this sql > ``` > select xxx > From xxxxx > where 200000=>id > order by id > limit 200000 > ``` > “OFFSET is bad for skipping previous rows.” [Online]. Available: > http://Use-The-Index-Luke.com/sql/partial-results/fetch-next-page. [Accessed: > 27-Dec-2016]. > Thank you in advance -- This message was sent by Atlassian JIRA (v6.3.4#6332)