執行SQL查詢
# Load a JSON file
people <- read.df("./examples/src/main/resources/people.json", "json")
# Register this SparkDataFrame as a temporary view.
createOrReplaceTempView(people, "people")
# SQL statements can be run by using the sql method
teenagers <- sql("SELECT name FROM people WHERE age >= 13 AND age <= 19")
head(teenagers)
## name
##1 Justin