How to show full column content in a Spark Dataframe?
results.show(20, false) will not truncate. Check the source 20 is the default number of rows displayed when show() is called without any arguments.
results.show(20, false) will not truncate. Check the source 20 is the default number of rows displayed when show() is called without any arguments.
Try the below code, you need not specify the schema. When you give inferSchema as true it should take it from your csv file. val pagecount = sqlContext.read.format(“csv”) .option(“delimiter”,” “).option(“quote”,””) .option(“header”, “true”) .option(“inferSchema”, “true”) .load(“dbfs:/databricks-datasets/wikipedia-datasets/data-001/pagecounts/sample/pagecounts-20151124-170000”) If you want to manually specify the schema, you can do it as below: import org.apache.spark.sql.types._ val customSchema = StructType(Array( … Read more
Try the below code, you need not specify the schema. When you give inferSchema as true it should take it from your csv file. val pagecount = sqlContext.read.format(“csv”) .option(“delimiter”,” “).option(“quote”,””) .option(“header”, “true”) .option(“inferSchema”, “true”) .load(“dbfs:/databricks-datasets/wikipedia-datasets/data-001/pagecounts/sample/pagecounts-20151124-170000”) If you want to manually specify the schema, you can do it as below: import org.apache.spark.sql.types._ val customSchema = StructType(Array( … Read more
It is creating a folder with multiple files, because each partition is saved individually. If you need a single output file (still in a folder) you can repartition (preferred if upstream data is large, but requires a shuffle): df .repartition(1) .write.format(“com.databricks.spark.csv”) .option(“header”, “true”) .save(“mydata.csv”) or coalesce: df .coalesce(1) .write.format(“com.databricks.spark.csv”) .option(“header”, “true”) .save(“mydata.csv”) data frame before … Read more