sparklyr (version 0.5.6)

sdf_schema: Read the Schema of a Spark DataFrame

Description

Read the schema of a Spark DataFrame.

Usage

sdf_schema(x)

Arguments

x

An object coercable to a Spark DataFrame (typically, a tbl_spark).

Value

An R list, with each list element describing the name and type of a column.

Details

The type column returned gives the string representation of the underlying Spark type for that column; for example, a vector of numeric values would be returned with the type "DoubleType". Please see the Spark Scala API Documentation for information on what types are available and exposed by Spark.