6回答

804浏览

• 余生请多指教 2018-12-31 09:45

Task not serializable: java.io.NotSerializableExce

• scala
• serialization
• apache-spark
• typesafe

3回答

2064浏览

• 梦醉为红颜 2018-12-31 08:32

How to query JSON data column using Spark DataFram

• scala
• apache-spark
• apache-spark-sql
• spark-dataframe
• spark-cassandra-connector

2回答

2083浏览

• 人间绝色 2018-12-31 07:36

How to melt Spark DataFrame?

• pandas
• apache-spark
• pyspark
• apache-spark-sql
• melt

8回答

2063浏览

• 有味是清欢 2018-12-31 07:08

How to store custom objects in Dataset?

• scala
• apache-spark
• apache-spark-dataset

10回答

1756浏览

• 与君花间醉酒 2018-12-31 06:15

Write to multiple outputs by key Spark - one Spark

• scala
• hadoop
• output
• hdfs
• apache-spark

2回答

468浏览

• 柔情千种 2018-12-31 05:43

Find maximum row per group in Spark DataFrame

• sql
• apache-spark
• pyspark
• apache-spark-sql

3回答

1514浏览

• 像晚风撩人 2018-12-31 03:50

Querying Spark SQL DataFrame with complex types

• scala
• apache-spark
• dataframe
• apache-spark-sql
• spark-dataframe

6回答

2043浏览

• 怪性笑人. 2018-12-31 02:25

How to pivot DataFrame?

• scala
• apache-spark
• apache-spark-sql

7回答

1300浏览

• 人气声优 2018-12-31 01:37

How to select the first row of each group?

• scala
• apache-spark
• apache-spark-sql
• spark-dataframe

4回答

836浏览

• 后来的你喜欢了谁 2018-12-31 00:27

How to make good reproducible Apache Spark Datafra

• apache-spark
• pyspark
• apache-spark-sql
• spark-dataframe
• pyspark-sql