Webbpipelinedrdd' object has no attribute 'flatmap' 这个错误通常是因为您正在尝试在一个 PipelinedRDD 对象上调用 flatmap () 方法，但是该对象并没有 flatmap () 方法。 flatmap () 是 RDD 的方法，而 PipelinedRDD 是一种特殊类型的RDD，表示从前一个阶段的任务到下一个阶段的任务的中间结果。 因此，您需要首先将 PipelinedRDD 转换为普通的 RDD 对 … Webb10 maj 2016 · 'RDD' object has no attribute 'select' This means that test is in fact an RDD and not a dataframe (which you are assuming it to be). Either you convert it to a dataframe and then apply select or do a map operation over the RDD. Please let me know if you need any help around this. Share Improve this answer Follow answered May 18, 2016 at 9:52

Converting rdd to dataframe: AttributeError:

Webb19 apr. 2016 · 基本上我从这段代码错误：. a = data.mapPartitions (helper (locations)) 数据是RDD，我的助手定义为：. def helper (iterator, locations): for x in iterator: c = … Webb5 maj 2024 · toDF方法在SparkSession in和SQLContex 1.x版本下执行。 所以. spark = SparkSession(sc) hasattr(rdd, "toDF") 如果你是在Scala中，你需要运行轨迹import spark.implicits._. 希望这有助于！ lafeber emeraid

python - Explode in PySpark - Stack Overflow

Webb24 sep. 2013 · Perform a right outer join of self and other. For each element (k, w) in other, the resulting RDD will either contain all pairs (k, (v, w)) for v in this, or the pair (k, (None, … Webb24 sep. 2013 · PipelinedRDD A Resilient Distributed Dataset (RDD), the basic abstraction in Spark. Represents an immutable, partitioned collection of elements that can be operated on in parallel. Instance Methods __init__ (self, jrdd, ctx) x.__init__ (...) initializes x; see help (type (x)) for signature source code cache(self) jedenastka odc 68