commit | d1b4221c28542bed634aed7fb995d519ea363536 | [log] [tgz] |
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author | ajantha-bhat <ajanthabhat@gmail.com> | Wed Apr 15 11:41:47 2020 +0530 |
committer | kunal642 <kunalkapoor642@gmail.com> | Mon Apr 20 12:48:42 2020 +0530 |
tree | 9124d649fa5fc145b0e6d658a4ce05f6388273ab | |
parent | edfb30aff5e4231e4229808e0edacd603bc2366d [diff] |
[HOTFIX] Avoid reading table status file again per query Why is this PR needed? After add segment feature, we take snapshot twice (which leads in two times table status IO), we can refuse the original snapshot a. First time snapshot in LateDecodeStrategy.pruneFilterProjectRaw() b. second time in CarbonTableInputFormat.getSplits() What changes were proposed in this PR? Take snapshot only once and reuse in the second place This closes #3709
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).