Re: [jira] [Created] (IOTDB-205) Support retention policy

2019-09-16 Thread Xiangdong Huang
+1 for the feature. Cassandra names it as TTL. So, how about for each storage group, there is a retention policy. And, clean the old data when merging. --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Jialin Qiao (Jira) 于2019年9月9日周一

[jira] [Created] (IOTDB-216) Release of 0.8.1

2019-09-16 Thread Jialin Qiao (Jira)
Jialin Qiao created IOTDB-216: - Summary: Release of 0.8.1 Key: IOTDB-216 URL: https://issues.apache.org/jira/browse/IOTDB-216 Project: Apache IoTDB Issue Type: Task Reporter: Jialin

Re: Release of 0.8.1

2019-09-16 Thread Jialin Qiao
Hi, I went through recent PRs and list those related to bug-fix of 0.8.0. * bug in updating startTime and endTime in TsFileResource * https://github.com/apache/incubator-iotdb/pull/347 * bug of Mix unsequence folder in sequence folder *

Re: Re: [jira] [Created] (IOTDB-201) Query parsing runs slower when using ANTLR v4

2019-09-16 Thread Xiangdong Huang
Hi, > However, If prefixPath is not a leaf node, a StringBuilder will be created instead of reference access. In your example, prefixPath is a leaf node, is that right? Maybe it is the incorrect of the API call that lead to the bad performance. Can we do some unit tests? e.g. just implement 1 ~

Re: [jira] [Created] (IOTDB-207) Bug about the method query(QueryExpression queryExpression, long partitionStartOffset, long partitionEndOffset) in ReadOnlyTsFile

2019-09-16 Thread Xiangdong Huang
Hi, please comment which version is impacted by this bug (0.8, or 0.9?) and record it on JIRA, as well as which version has solved it. --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Yuan Tian (Jira) 于2019年9月10日周二 下午4:12写道： > Yuan

Re: Support retention policy

2019-09-16 Thread Jialin Qiao
Hi, Each storage group has its own retention policy is fine. In our configuration, merging can be disabled or at very low frequency. Is it better to execute a global (bounded with the storage group) delete plan periodically? Best, -- Jialin Qiao School of Software, Tsinghua University 乔嘉林

[jira] [Created] (IOTDB-215) Make users aware of auxiliary tools such as print-tsfile-resource-files by fulfilling docs

2019-09-16 Thread Lei Rui (Jira)
Lei Rui created IOTDB-215: - Summary: Make users aware of auxiliary tools such as print-tsfile-resource-files by fulfilling docs Key: IOTDB-215 URL: https://issues.apache.org/jira/browse/IOTDB-215 Project:

[jira] [Created] (IOTDB-217) A new predicate of time

2019-09-16 Thread Jialin Qiao (Jira)
Jialin Qiao created IOTDB-217: - Summary: A new predicate of time Key: IOTDB-217 URL: https://issues.apache.org/jira/browse/IOTDB-217 Project: Apache IoTDB Issue Type: New Feature

回复：Apache project meetup in ShangHai Sep 21st

2019-09-16 Thread Liu Ted
Hi Willem, What's the current status if the captioned meeting in Shanghai on Seot. 21st? Has the venue and time been decided yet? Best regards, Ted Liu,  ASF Member, Sponsor Ambassador, Incubator PMC Member 2019 年 8 月 21 日周三 10:55，Willem Jiang 写道： Hi, We would like to hold a meetup in

Re: [jira] [Created] (IOTDB-210) One else if branch will never be reached in the method optimize of ExpressionOptimizer

2019-09-16 Thread Xiangdong Huang
Hi, Is it a bug? or just removing the last else-if clause will solve it? Jinrui may know more about that. Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Yuan Tian (Jira) 于2019年9月12日周四 上午10:01写道： > Yuan Tian created IOTDB-210:

Re: One else if branch will never be reached in the method optimize of ExpressionOptimizer

2019-09-16 Thread Jialin Qiao
Hi, I checked the code, it is NOT a bug, just removing the last else-if clause will solve it. -- 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: "Xiangdong Huang" > 发送时间: 2019-09-17 08:53:17 (星期二) > 收件人: dev@iotdb.apache.org, xingtan...@apache.org >

Re: Confused about one read method in TsFileInput interface

2019-09-16 Thread Xiangdong Huang
yes, The method does not change the position of the FileChannel Reader. Add it in the javadoc is a good idea. --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Yuan Tian 于2019年9月9日周一 下午9:33写道： > Hi, > > While implementing one read

Re: [IoTDB-164] Convert Path(String) to ID(Long)

2019-09-16 Thread Xiangdong Huang
Hi, The same question with Lei Rui. Show the codes is better. --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Lei Rui 于2019年9月11日周三 上午10:32写道： > Hi, > > > I am also confused about the "six times worse" when creating timeseries. > >

[jira] [Created] (IOTDB-213) query optimization for repeated paths in SELECT clause

2019-09-16 Thread Lei Rui (Jira)
Lei Rui created IOTDB-213: - Summary: query optimization for repeated paths in SELECT clause Key: IOTDB-213 URL: https://issues.apache.org/jira/browse/IOTDB-213 Project: Apache IoTDB Issue Type:

[jira] [Created] (IOTDB-214) TSExecuteStatementResp's ignoreTimeStamp is not set in the TSServiceImpl.executeQueryStatement

2019-09-16 Thread Lei Rui (Jira)
Lei Rui created IOTDB-214: - Summary: TSExecuteStatementResp's ignoreTimeStamp is not set in the TSServiceImpl.executeQueryStatement Key: IOTDB-214 URL: https://issues.apache.org/jira/browse/IOTDB-214