commit | a4700afe40c1b10d018bc20eab5805def115337c | [log] [tgz] |
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author | akashrn5 <akashnilugal@gmail.com> | Wed Dec 04 13:46:40 2019 +0530 |
committer | kunal642 <kunalkapoor642@gmail.com> | Wed Jan 08 11:50:17 2020 +0530 |
tree | 2f66ef7f3ea937974cf09f184f4b421dcedc3375 | |
parent | 511dc6d0c7ce9becdd64a640c26e57f8dec25129 [diff] |
[CARBONDATA-3602]Fix MV issues with session level operations Problems: 1. when the same timeseries query is being executed from different session, one session query is not being hit to datamap table. When the query executed from different session, the semantic equals of ScalaUDF expression fails, as object reference is different, when the object equals is checked for that. 2. When same datamap on same table, but in some other database is executed, fails with table not found error. This is because, when first time the datamap catalog map is initialized, it contains the session info, which wont be cleared when session get refreshed. Solution: 1. make the TimeSeriesFunction as case class, as during run time scala generates the equals method, which will check the other equality when the object reference are not equal. 2. when the session info gets updated, clear the entry in map and put again with new session info. This closes #3497
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).