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33 lines
921 B
Python
33 lines
921 B
Python
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from pyspark.sql import SparkSession
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DATA_DIR = "../resources/data"
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TEST_CASE_NAME = "PythonHdfsIn2HdfsOut2"
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spark = SparkSession \
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.builder \
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.appName(TEST_CASE_NAME) \
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.enableHiveSupport() \
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.getOrCreate()
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df1 = spark.read.option("header", "true").csv(DATA_DIR + "/in1.csv")
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df2 = spark.read.option("header", "true").csv(DATA_DIR + "/in2.csv")
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df1.createOrReplaceTempView("v1")
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df2.createOrReplaceTempView("v2")
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df = spark.sql("select v1.c1 as a, v1.c2 as b, v2.c1 as c, v2.c2 as d from v1 join v2 on v1.id = v2.id")
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#InsertIntoHadoopFsRelationCommand
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df.write.mode('overwrite').csv(DATA_DIR + "/" + TEST_CASE_NAME+"/out1.csv")
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df_o = spark.sql("select v1.c1 as a1, v1.c2 as b1, v2.c1 as c1, v2.c2 as d1 from v1 join v2 on v1.id = v2.id")
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#InsertIntoHadoopFsRelationCommand
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df_o.write.mode('overwrite').csv(DATA_DIR + "/" + TEST_CASE_NAME+"/out2.csv")
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spark.sparkContext.stop()
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spark.stop()
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