R/sdf_wrapper.R
sdf_read_column.Rd
Read a single column from a Spark DataFrame, and return the contents of that column back to R.
sdf_read_column(x, column)
A spark_connection, ml_pipeline, or a tbl_spark.
spark_connection
ml_pipeline
tbl_spark
The name of a column within x.
x
It is expected for this operation to preserve row order.