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[SPARK-25465] Refactor Parquet test suites in project Hive - Spark - [issue]
...Current the file parquetSuites.scala(https://github.com/apache/spark/blob/f29c2b5287563c0d6f55f936bd5a75707d7b2b1f/sql/hive/src/test/scala/org/apache/spark/sql/hive/parquetSuites.scala) is n...
http://issues.apache.org/jira/browse/SPARK-25465    Author: Gengliang Wang , 2018-09-22, 16:46
[SPARK-25499] Refactor BenchmarkBase and Benchmark - Spark - [issue]
...Currently there are two classes with the same naming BenchmarkBase:1. org.apache.spark.util.BenchmarkBase2. org.apache.spark.sql.execution.benchmark.BenchmarkBaseHere I propose:1. the packag...
http://issues.apache.org/jira/browse/SPARK-25499    Author: Gengliang Wang , 2018-09-21, 14:21
[SPARK-24777] Add write benchmark for AVRO - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-24777    Author: Gengliang Wang , 2018-09-21, 00:42
[SPARK-24800] Refactor Avro Serializer and Deserializer - Spark - [issue]
...Currently in Avro data source module, the Avro Deserializer converts input Avro format data to Row, and then convert the Row to InternalRow. The Avro Serializer converts InternalRow to Row, ...
http://issues.apache.org/jira/browse/SPARK-24800    Author: Gengliang Wang , 2018-09-17, 16:02
[SPARK-24768] Have a built-in AVRO data source implementation - Spark - [issue]
...Apache Avro (https://avro.apache.org) is a popular data serialization format. It is widely used in the Spark and Hadoop ecosystem, especially for Kafka-based data pipelines.  Using the exter...
http://issues.apache.org/jira/browse/SPARK-24768    Author: Gengliang Wang , 2018-09-17, 05:25
[SPARK-25313] Fix regression in FileFormatWriter output schema - Spark - [issue]
...In the follow example:        val location = "/tmp/t"        val df = spark.range(10).toDF("id")        df.write.format("parquet")...
http://issues.apache.org/jira/browse/SPARK-25313    Author: Gengliang Wang , 2018-09-11, 02:11
[SPARK-21979] Improve QueryPlanConstraints framework - Spark - [issue]
...Improve QueryPlanConstraints framework, make it robust and simple.In apache/spark#15319, constraints for expressions like a = f(b, c) is resolved.However, for expressions likea = f(b, c) &am...
http://issues.apache.org/jira/browse/SPARK-21979    Author: Gengliang Wang , 2018-09-09, 22:49
[SPARK-24771] Upgrade AVRO version from 1.7.7 to 1.8 - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-24771    Author: Gengliang Wang , 2018-09-06, 06:02
[SPARK-25305] Respect attribute name in `CollapseProject` and `ColumnPruning` - Spark - [issue]
...Currently in optimizer rule `CollapseProject`, the lower level project is collapsed into upper level, but the naming of alias in lower level is propagated in upper level.We should reserve al...
http://issues.apache.org/jira/browse/SPARK-25305    Author: Gengliang Wang , 2018-09-01, 16:43
[SPARK-24772] support reading AVRO logical types - Date - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-24772    Author: Gengliang Wang , 2018-08-23, 16:15