iotdb
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Apache IoTDB
Bumps `netty.version` from 4.1.82.Final to 4.1.84.Final. Updates `netty-all` from 4.1.82.Final to 4.1.84.Final Commits 889f4fa [maven-release-plugin] prepare release netty-4.1.84.Final 433f8ef [maven-release-plugin] prepare for next development iteration e81dc90 [maven-release-plugin] prepare release netty-4.1.83.Final...
1. Improve the RowRecord computing speed in GroupByWithoutValueFilterDataSet by multi thread strategy
**Describe the bug** 配置如下: ``` timestamp_precision=ns default_ttl=600000 ``` 1. 我不确定我设置的这个 600000 是ns 还是 ms级别的。 2. 所有我插入了5条数据(如下)  3. 如果 600000 是ms级别,则过了10分钟后,数据依然存在  -- 版本: 
 Given a column index, the data type is unique, so we should provide users with a single "Get" api instead of apis with type. Besides, getting timestamp can be...
当进行大量的历史数据导入时(TB级),IoTDB会出现明显的查询变慢问题,同时CPU的使用率明显上升。以目前我们的使用场景为例,导入80000个测点两年以上的历史数据,数据量大概在7-8TB。导入前,IoTDB中测点最新值查询耗时在10ms以下,在导入历史数据的过程中发现:同样的最新值查询竟花费了9秒,对应用的数据查询体验造成了较大影响。希望IoTDB团队优化历史数据导入处理流程,降低对查询的影响。此外,希望能给出历史数据导入过程的制约因素,指导用户进行数据库参数配置或者硬件资源的升级。
In this pr: 1. Support translating snapshot file to statements, so you can use schema region snapshot parser to construct a same Schema tree in another cluster. 2. Add some...
Since jol is in GPL2 license and belong to category X, so we need to remove it. Luckily, I found an useful class in Apache Lucene, named `RamUsageEstimator`. Actually, we've...
## Description This PR adds a UDF function for envelope demodulation analysis. The function of envelope demodulation analysis is designed to realize the demodulation and envelope extraction of the signal...
Thanks @Caideyipi @DanielWang2035 :_)