Created
January 24, 2025 18:42
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import pyspark | |
from pyspark.sql import SparkSession | |
from pyspark.sql import SQLContext | |
from pyspark.sql import DataFrame | |
sc = pyspark.SparkContext() | |
sqlCtx = SQLContext(sc) | |
spark = SparkSession \ | |
.builder \ | |
.master('yarn') \ | |
.appName('spark-bigquery-demo') \ | |
.getOrCreate() | |
#// Use the Cloud Storage bucket for temporary BigQuery export data used | |
#// by the connector. | |
bucket = "gs://cjac-docker-on-yarn/spark-bigquery-demo/" | |
spark.conf.set("temporaryGcsBucket", bucket) | |
dataDictionary = [ | |
('James',{'hair':'black','eye':'brown','number':1000000000000000000000000000000000000}), | |
('Michael',{'hair':'brown','eye':None,'number':9999999999999999999999999999999999999}), | |
('Robert',{'hair':'red','eye':'black','number':4500000000000000000000000000000000000}), | |
('Washington',{'hair':'red','eye':'grey','number':420}), | |
('Jefferson',{'hair':'red','eye':'','number':380}) | |
] | |
#load data into a DataFrame object: | |
reproductionDf = spark.createDataFrame(data=dataDictionary, schema = ["name","properties"]) | |
reproductionDf.createOrReplaceTempView("reproduction_view") | |
spark.sql(''' | |
SELECT * FROM reproduction_view | |
''').show(truncate=False) | |
(reproductionDf.write.format("bigquery") | |
.option("table","reproduction_dataset.reproduction_output") | |
.save()) | |
spark.catalog.dropTempView("reproduction_view") |
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