commit | d8a5b7b6e27330d6efe345d1001b55b1cd6b5a45 | [log] [tgz] |
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author | ajantha-bhat <ajanthabhat@gmail.com> | Thu May 21 22:39:12 2020 +0530 |
committer | QiangCai <qiangcai@qq.com> | Tue Jul 21 10:29:36 2020 +0800 |
tree | 4e9f2be32aabcbf99e4498b271c4ffab0e7bff94 | |
parent | 6165901032d1acf6a053b395928df9298fd1c2e0 [diff] |
[CARBONDATA-3849] Push down array_contains filter for array<primitive type> column Why is this PR needed? Currently array_contains() UDF is not pushed down to carbon. So, carbon has to scan all the rows for query having this UDF. Scanning all the rows reduces the query performance. Hence need to pushdown. What changes were proposed in this PR? Push down array_contains() for all the array of primitive type as equalsTo filter. Having as equals to filter, we can break the scanning of elements in array once found. Does this PR introduce any user interface change? No Is any new testcase added? Yes This closes #3771
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
Some features are marked as experimental because the syntax/implementation might change in the future.
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).