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[SPARK-27579] remove BaseStreamingSource and BaseStreamingSink - Spark - [issue]    Author: Wenchen Fan , 2019-05-06, 12:42
[SPARK-27675] do not use MutableColumnarRow in ColumnarBatch - Spark - [issue]    Author: Wenchen Fan , 2019-05-12, 11:00
[SPARK-27674] the hint should not be dropped after cache lookup - Spark - [issue]    Author: Wenchen Fan , 2019-05-15, 22:48
[SPARK-20292] string representation of TreeNode is messy - Spark - [issue]
...Currently we have a lot of string representations for QueryPlan/Expression: toString, simpleString, verboseString, treeString, sql, etc.The logic between them is not very clear and as a resu...    Author: Wenchen Fan , 2019-05-21, 04:14
[SPARK-19756] drop the table cache after inserting into a data source table - Spark - [issue]    Author: Wenchen Fan , 2019-05-21, 04:12
[SPARK-14146] Imported implicits can't be found in Spark REPL in some cases - Spark - [issue]
...class I(i: Int) {  def double: Int = i * 2}class Context {  implicit def toI(i: Int): I = new I(i)}val c = new Contextimport c._// OK1.double// Failclass A; 1.doubleThe above code ...    Author: Wenchen Fan , 2019-05-21, 04:13
[SPARK-19651] ParallelCollectionRDD.collect should not issue a Spark job - Spark - [issue]    Author: Wenchen Fan , 2019-05-21, 04:11
[SPARK-13801] DataFrame.col should return unresolved attribute - Spark - [issue]
...Recently I saw some JIRAs complain about wrong result when using DataFrame API. After checking their queries, I found it was caused by un-direct self-join and they build wrong join condition...    Author: Wenchen Fan , 2019-05-21, 04:12
[SPARK-19847] port hive read to FileFormat API - Spark - [issue]    Author: Wenchen Fan , 2019-05-21, 04:16
[SPARK-13762] support only column names in schema string at createDataFrame - Spark - [issue]
...for example, `createDataFrame(rdd, "a b c")`...    Author: Wenchen Fan , 2019-05-21, 04:36