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spark运行报错
Truncated the string representation of a plan since it was too large. This behavior can be adjusted by setting 'spark.debug.maxToStringFields' in SparkEnv.conf.
需要设置.config("spark.debug.maxToStringFields", "100")
SparkSession .builder() .master("local[4]") .appName("report") .config("spark.debug.maxToStringFields", "100") .getOrCreate();