Hi Julian, I cloned your repo https://github.com/JulianFeinauer/incubator-iotdb/tree/ calcite-integration, but an error appeared as below.
Could not resolve dependencies for project >> org.apache.iotdb:iotdb-calcite:jar:0.8.0-SNAPSHOT: Failure to find >> org.apache.calcite:calcite-core:jar:1.19.0-SNAPSHOT in >> https://repository.apache.org/snapshots was cached in the local >> repository, resolution will not be reattempted until the update interval of >> apache.snapshots has elapsed or updates are forced -> [Help 1] > > > And I cloned Apache-Calcite, checkout to the branch branch-1.19, executed `mvn clean install -Dmaven.test.skip=true`, but an error appeared as below. [ERROR] Failed to execute goal >> org.apache.maven.plugins:maven-dependency-plugin:3.1.1:analyze-only >> (analyze) on project calcite-linq4j: Dependency problems found -> [Help 1] > > [ERROR] > > [ERROR] To see the full stack trace of the errors, re-run Maven with the >> -e switch. > > [ERROR] Re-run Maven using the -X switch to enable full debug logging. > > [ERROR] > > [ERROR] For more information about the errors and possible solutions, >> please read the following articles: > > [ERROR] [Help 1] >> http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException > > [ERROR] > > [ERROR] After correcting the problems, you can resume the build with the >> command > > [ERROR] mvn <goals> -rf :calcite-linq4j > > > So how to solve this problem. And maybe i think it's better to ask this problem in Calcite community haha. 😂 Thanks & Best Regards Gaofei Julian Feinauer <[email protected]> 于2019年2月28日周四 上午12:23写道： > Hi Tianan, > > personally I found it difficould to learn Calcite from the Documentation, > but the csv Examples are quite okay to follow. > I also filed a Jira for this issue [1] and prepared a minimal working > example for Calcite on top of a tsfile in my fork [2]. > > The Example in the Repo is fully functional and maps each device from a > tsfile to one Table and each measurement to a column (+ timestamp). > It supports basically all SQL Queries. > > Of course there is no efficiency yet like predicate pushdown or path > selection pushdown or so... this is the fun work for the future : ) > > Best > Julian > > [1] https://issues.apache.org/jira/browse/IOTDB-28 > [2] > https://github.com/JulianFeinauer/incubator-iotdb/tree/calcite-integration > > Am 27.02.19, 16:12 schrieb "李天安" <[email protected]>: > > Hi Julian, > Nice to hear from you. > I’m very glad to hear that you’d like to help us with the > integration. > We want to proceed the integration as follows: > Firstly, we will learn how you integrate calcite with other > products from official website. > After that, we discuss the structure of Calcite Integration with > you. > > Tianan Li > > > 在 2019年2月26日，上午4:39，Julian Feinauer <[email protected]> > 写道： > > > > Hi Tianan, > > > > nice to hear from you! > > I just recently recognized how far you have come and how less time I > commited to IoTDB. > > I would really love to participate in this effort and help you with > the Calcite Adapter. > > What do you think is the best way to proceed? > > I can tell you something about the structure of Calcite > Integratioons (or make a walkthrough through the Plc4x integration I’ve > done). > > > > What do the others think? > > > > Julian > > > > Von: 李天安 <[email protected]> > > Datum: Montag, 25. Februar 2019 um 17:01 > > An: "[email protected]" <[email protected]> > > Betreff: Fwd: Integrate Calcite in IoTDB > > > > > > > > > > 下面是被转发的邮件： > > > > 发件人: 李天安 <[email protected]<mailto: > [email protected]>> > > 主题: Integrate Calcite in IoTDB > > 日期: 2019年2月25日 GMT+8 下午2:56:56 > > 收件人: [email protected]<mailto:[email protected]> > > 回复－收件人: [email protected]<mailto:[email protected]> > > > > Hi Julian, > > > > My name is Tianan Li, one of the initial committers of IoTDB > project. Over the past few months, we have optimized the structure and > content of the IoTDB project and basically completed it. Now we hope to > integrate with Calcite. I wonder if you would like to instruct us to > complete the Calcite-IoTDB Adapter. > > > > Best > > Tianan Li > > > > > > 在 2018年12月3日，上午5:25，Julian Feinauer <[email protected]<mailto: > [email protected]>> 写道： > > > > Hi, > > > > my name is Julian Feinauer and I come from Apache Calcite, Edgent > and PLC4X. My interest is mostly in time series processing at the edge. In > my daytime job I work for two companies called pragmatic minds and > pragmatic industries which we founded nearly 3 years ago in South Germany. > > I love the idea behind iotDB as it is realy the materialization of > many of my thoughts about what we really need for efficient storage of ts > data. > > I would love to get my hands dirty on the query and filter api and > perhaps even write a small Calcite Adapter, when I find some time in the > next weeks. > > > > We have many "IoT" projects with practical use cases in the industry > so I'll try to bring my perspective in as best as possible. > > > > Best > > Julian > > > > > > > >
