You should remove duplicated changes in the former versions. For example, "IOTDB-172fix a bug of TsFileResource updateTime" has already been listed in 0.8.1.
Besides, "[IOTDB-165][TsFile] Fix a example" does not only fix a bug, but also change the TsFile structure, which is unfortunately reflected neither from the JIRA issue title nor the pr name. From this example, we can also see that it is necessary to name our pr as accurate as possible. And the release manager better double check if there is inconsistency between the JIRA issue and the linked pr. Lei Rui On 10/29/2019 17:11，Jialin Qiao<qj...@mails.tsinghua.edu.cn> wrote： Hi, As 0.8.1 has been released, the release of 0.9.0 could start. I would like to do the release manager of 0.9.0, and I gathered the change list: ## New Features * IOTDB-143Compaction of data file * IOTDB-205Support storage-group-level Time To Live (TTL) * IoTDB 226Hive connect TsFile * IOTDB-188Delete storage group * IOTDB-253support time expression * IOTDB-239Add interface for showing devices * IOTDB-249enable lowercase in create_timeseries sql * IOTDB-203add "group by device" function for narrow table display * IOTDB-193Create schema automatically when inserting * IOTDB-241Add query and non query interface in session * IOTDB-223Add a TsFile sketch tool * IOTDB-158add metrics web service * IOTDB-234Refactor TsFile storage on HDFS * IOTDB-199Add a log visulization tool * IoTDB-174Add interfaces for querying device or timeseries number * IOTDB-173add batch write interface in session * IOTDB-151support number format in timeseries path * Spark-iotdb-connector * generate cpp, go, and python thrift files under service-rpc * display cache hit rate through jconsole * support time < 0: Fix initial value of minTimestamp to Long.MIN_VALUE in ChunkBuffer * Add interface (Delete timeseries) in session * Add a tool to print tsfileResources (each device's start and end time) * Support watermark feature * Add micro and nano timestamp precision ## Incompatible changes * RPC is incompatible, you can not use client-0.8.0 to connect with server-0.9.0 or use client-0.9.8 to connect with server-0.8.0. * Server is backward compatible, server-0.9.0 could run on data folder of 0.8.0. The data file will be upgraded background. https://github.com/apache/incubator-iotdb/pull/467 ## Miscellaneous changes * IOTDB-258 Add documents for Query History Visualization Tool and Shared Storage Architecture * IOTDB-233keep metadata plan clear * IOTDB-267reduce IO operations in deserializing chunk header * IOTDB-265Re-adjust the threshold size of memtable * IOTDB-251improve TSQueryDataSet structure in RPC * IOTDB-221Add a python client example * IOTDB-180Get rid of JSON format in "show timeseries" * IOTDB-161Add ErrorCode of different response errors * IOTDB-160External sort * IOTDB-153further limit fetchSize to speed up LIMIT&OFFSET query * reconstruct antlrv3 grammar to improve performance * Tooling for release * Modified Decoder and SequenceReader to support old version of TsFile * Remove jdk constrain of jdk8 and 11 ## Known Issues * IOTDB-20 Need to support UPDATE ## Bug Fixes * IOTDB-266 NullPoint exception when reading not existed devices using ReadOnlyTsFile * IOTDB-264restart failure due to WAL replay error * IOTDB-165[TsFile] Fix a example * IOTDB-240fix unknown time series in where clause * IOTDB-244fix bug when querying with duplicated columns * IOTDB-174Fix querying timeseries interface cannot make a query by the specified path prefix * IOTDB-195using String.getBytes(utf-9).length to replace string.length() in ChunkGroupMetadata for supporting Chinese * IOTDB-211use "%IOTDB_HOME%\lib\*" to refers to all .jar files in the directory in start-server.bat * IOTDB-172fix a bug of TsFileResource updateTime * fix start-walchecker scripts for leting user define the wal folder Is there any missing? Thanks, -- Jialin Qiao School of Software, Tsinghua University 乔嘉林 清华大学 软件学院
