sdf_schema
From sparklyr v0.6.3
by Javier Luraschi
Read the Schema of a Spark DataFrame
Read the schema of a Spark DataFrame.
Usage
sdf_schema(x)
Arguments
- x
An object coercable to a Spark DataFrame (typically, a
tbl_spark
).
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.
Value
An R list
, with each list
element describing the
name
and type
of a column.
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