随笔分类 - structured_streaming
摘要:是采用的将更新的维度表放在最新的分区的形式。 # coding=utf-8 from pyspark.sql.types import IntegerType, StructType from pyspark.sql import SparkSession import datetime from
阅读全文
摘要:#CSV mySchema = StructType().add("id", IntegerType(), True).add("name",StringType(),True) df = spark.readStream.option("sep",",").option("header","fal
阅读全文
摘要:# ratefrom pyspark.sql import SparkSession spark = SparkSession.builder. \ appName("study_structured_streaming"). \ enableHiveSupport(). \ config("spa
阅读全文