[jira] [Commented] (IOTDB-462) Failed to execute goal for `download-maven-plugin`.

[ https://issues.apache.org/jira/browse/IOTDB-462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17034983#comment-17034983 ] Jialin Qiao commented on IOTDB-462: --- Hi, a user also encounters this problem. Reducing

[DISCUSS] Restructure QueryPlan: RawDataQueryPlan and AlignByDevicePlan

Hi all, I'm currently fixing this issue: Seperate AlignByDevicePlan from QueryPlan[1]. There are three aspects that I changed: (1) Restructure QueryPlan The general query aligning by time and the AlignByDevice query ( which is called groupByDevice before ) were both storaged in QueryPlan

[jira] [Commented] (IOTDB-462) Failed to execute goal for `download-maven-plugin`.

[ https://issues.apache.org/jira/browse/IOTDB-462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17034985#comment-17034985 ] Jialin Qiao commented on IOTDB-462: --- [https://github.com/apache/incubator-iotdb/pull/794] > Failed to

[jira] [Commented] (IOTDB-298) Last time-value query

[ https://issues.apache.org/jira/browse/IOTDB-298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17035005#comment-17035005 ] Shao Wei commented on IOTDB-298: Hi, a last query scan just work as normal query scan. I've learned that

[jira] [Closed] (IOTDB-462) Failed to execute goal for `download-maven-plugin`.

[ https://issues.apache.org/jira/browse/IOTDB-462?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jialin Qiao closed IOTDB-462. - Fix Version/s: 0.10.0-SNAPSHOT Resolution: Fixed > Failed to execute goal for

Re: About changing Github description topics

Hi, It looks good, only one thing that all topics need to be lowercase. Thanks, — Jialin Qiao School of Software, Tsinghua University 乔嘉林 清华大学 软件学院 atoiLiu 于2020年2月11日周二 下午12:03写道： > Hi， > > Infra said it was a self-serve service and provided a link to the > explanatory

Re: [DISCUSS] Remove PropertyPlan and PTree?

Hi The property tree is a semi-finished function, whose use cases are not clear. I suggest removing it. Thanks, — Jialin Qiao School of Software, Tsinghua University 乔嘉林 清华大学 软件学院 孙泽嵩 于2020年2月11日周二 上午10:08写道： > Hi all, > > I’m currently working on refactoring MManager [1] ,

Re: Suggestions for new TsFile

Hi Dawei, Thank you so much that you share your opinion about new TsFile! I am very happy to take your suggestions. You said we can remove TsOffsetArray and directly store the offset of TimeseriesMetaData. I agree with you. It is better than my version. Besides, for the optimization of

Suggestions for new TsFile

Hi, I’m learning new TsFile in PR [1], but I think TsFileMetaData has a bad design. TsFileMetaData has a TsOffsetArray, TsOffsetArray is record every offset of TimeseriesMetaData, and use Map to record startIndex , endIndex of TsOffsetArray, it’s looks like : TsFileMetaData —>{ [0,1,2,3,4,5,

Re: [DISCUSS] Table schema of group by device

Hi, If we use text when a column has multiple types, I'm ok with (3). Thanks, — Jialin Qiao School of Software, Tsinghua University 乔嘉林 清华大学 软件学院 魏祥威 <526213...@qq.com> 于2020年2月9日周日 下午5:30写道： > Hi, > > > I agree with the opinion of Xiangdong Huang. > > > (3) is the most

Re: Suggestions for new TsFile

Hi, Thank you for your reply. I am very happy that you can take my suggestion. Thanks Dawei Liu > 2020年2月11日 下午6:04，Haonan Hou 写道： > > Hi Dawei, > > Thank you so much that you share your opinion about new TsFile! > I am very happy to take your suggestions. > > You said we can remove

remove the log of "login" and "close session" or move them into a separate log file

Hi, Is there someone being troubled with the following server log: IoTDB: Login status: Login successfully. User : root IoTDB: receive close operation IoTDB: receive close session When I checked one user's IoTDB log, I am stuck with so many "login" and "close log records... I know audit is

Re: [DISCUSS] Remove PropertyPlan and PTree?

Hi, +1. We can pick the removed codes back from the git repo if really necessary in the future. --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Jialin Qiao 于2020年2月11日周二 下午5:48写道： > Hi > > The property tree is a semi-finished

Re: [DISCUSS] Table schema of group by device

Hi Jialin, Very glad that you can agree with that. :-D --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Jialin Qiao 于2020年2月11日周二 下午5:50写道： > Hi, > > If we use text when a column has multiple types, I'm ok with (3). > > Thanks, >

Re: Suggestions for new TsFile

Hi, If each device only stores each offset of TimeseriesMetadata like this: TsFileMetaData ---> [ {deviceId(d0), [0,1,2] }, {deviceId(d1), [3,4,5] }, … } It could be simplified to recording the start offset and end offset: TsFileMetaData ---> [ {deviceId(d0), [0, 2] }, {deviceId(d1), [3,5] }, …

[jira] [Commented] (IOTDB-298) Last time-value query

[ https://issues.apache.org/jira/browse/IOTDB-298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17034666#comment-17034666 ] atoildw commented on IOTDB-298: --- i have a question， if i'm in step 2 for scanning last result ，at the same

[jira] [Commented] (IOTDB-298) Last time-value query

[ https://issues.apache.org/jira/browse/IOTDB-298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17034640#comment-17034640 ] Shao Wei commented on IOTDB-298: Here is a brief design specification of *Last* query 1. "Last" query

Re: [DISCUSS] Remove PropertyPlan and PTree?

Hi Zesong， Thanks for bring up this discussion! +1 for your proposal! Best, Jincheng Xiangdong Huang 于2020年2月11日周二 下午9:39写道： > Hi, > > +1. We can pick the removed codes back from the git repo if really > necessary in the future. > > --- > Xiangdong Huang >