[jira] [Created] (IOTDB-479) JMX connection failed

Xiangdong Huang created IOTDB-479: - Summary: JMX connection failed Key: IOTDB-479 URL: https://issues.apache.org/jira/browse/IOTDB-479 Project: Apache IoTDB Issue Type: Bug

[jira] [Created] (IOTDB-478) Redesign the cache in TsFile/Engine

Jialin Qiao created IOTDB-478: - Summary: Redesign the cache in TsFile/Engine Key: IOTDB-478 URL: https://issues.apache.org/jira/browse/IOTDB-478 Project: Apache IoTDB Issue Type: Improvement

[jira] [Commented] (IOTDB-471) NullPoint exception when merging all TsFiles (may caused by TimeRange Partition)

[ https://issues.apache.org/jira/browse/IOTDB-471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17036170#comment-17036170 ] Jialin Qiao commented on IOTDB-471: --- We do not figure out how it occurs, only add some log. So this

working on issue "Improve the ExpressionOptimizer"

Hi, all I'm working on issue [IOTDB-476], "Improve the ExpressionOptimizer". --- Yuyuan KANG School of Software, Tsinghua University

[jira] [Created] (IOTDB-480) upgrade TsFileTools to support the time partition feature

Xiangdong Huang created IOTDB-480: - Summary: upgrade TsFileTools to support the time partition feature Key: IOTDB-480 URL: https://issues.apache.org/jira/browse/IOTDB-480 Project: Apache IoTDB

Re: Suggestions for new TsFile

Hi, I have a suggestion. We could add a Statistics in TimeseriesMetadata to support fast aggregations. Thanks, -- Jialin Qiao School of Software, Tsinghua University 乔嘉林 清华大学 软件学院 > -原始邮件- > 发件人: "Jialin Qiao" > 发送时间: 2020-02-13 16:16:54 (星期四) > 收件人: dev@iotdb.apache.org > 抄送: > 主题:

Re: Suggestions for new TsFile

Hi, +1 for most queries contains a time filter But I don't know what do you mean by "add a time attribute", add to where? Thanks, -- Jialin Qiao School of Software, Tsinghua University 乔嘉林 清华大学 软件学院 > -原始邮件- > 发件人: "Dawei Liu" > 发送时间: 2020-02-13 15:55:48 (星期四) > 收件人:

Re: Suggestions for new TsFile

Hi， Sorry，i overlooked that the first step in server was to filter files through startTime/endTime Map. +1 for add a Statistics in TimeseriesMetadata， For example: Device Shadow (设备影子) , it is often necessary to find the last information about a device Thanks Dawei Liu > 2020年2月13日

[jira] [Created] (IOTDB-477) Add file level statistics

Jialin Qiao created IOTDB-477: - Summary: Add file level statistics Key: IOTDB-477 URL: https://issues.apache.org/jira/browse/IOTDB-477 Project: Apache IoTDB Issue Type: Wish

Re: Suggestions for new TsFile

+1 It’s a good idea. Thanks, Haonan Hou > On Feb 13, 2020, at 5:20 PM, Dawei Liu wrote: > > Hi， > > Sorry，i overlooked that the first step in server was to filter files through > startTime/endTime Map. > > +1 for add a Statistics in TimeseriesMetadata， > > For example: > Device Shadow