commit | 6ebf10b3a2ee996a31d7a830391b83f9bd5c9a7a | [log] [tgz] |
---|---|---|
author | haomarch <marchpure@126.com> | Fri Mar 06 21:08:42 2020 +0800 |
committer | Jacky Li <jacky.likun@qq.com> | Sun Mar 08 10:45:26 2020 +0800 |
tree | ac7eee8853bbed60d029bd5086e912809c12a69e | |
parent | 20179f8ed0d6feb63b49aebee6f5a91f21c756e2 [diff] |
[HOTFIX] Remove Useless filepath truncation During prunning Why is this PR needed? During prunning, it will truncate the filepath with the keyword "/Part0". But it is useless. Specially, for partition table, the filepath is like '/tablename/partitionkey=value/segment0/.carbondata', it even have no keywork '/Part0'. Then for non-partition table, it is also meaningless to do this work. If there are a huge amount of blocklets, such as 400 million blocklets are going to do prunned, the truncation hampers the query performance heavily. What changes were proposed in this PR? Remove the filepath truncation. Does this PR introduce any user interface change? No Is any new testcase added? No This closes #3660
Apache CarbonData is an indexed columnar data store solution for fast analytics on big data platform, e.g.Apache Hadoop, Apache Spark, etc.
You can find the latest CarbonData document and learn more at: http://carbondata.apache.org
CarbonData file format is a columnar store in HDFS, it has many features that a modern columnar format has, such as splittable, compression schema ,complex data type etc, and CarbonData has following unique features:
CarbonData is built using Apache Maven, to build CarbonData
This is an active open source project for everyone, and we are always open to people who want to use this system or contribute to it. This guide document introduce how to contribute to CarbonData.
To get involved in CarbonData:
Apache CarbonData is an open source project of The Apache Software Foundation (ASF).