arrow (version 0.15.1)

Schema: Schema class

Description

Create a Schema when you want to convert an R data.frame to Arrow but don't want to rely on the default mapping of R types to Arrow types, such as when you want to choose a specific numeric precision.

Usage

schema(...)

Arguments

...

named list of data types

Usage

s <- schema(...)
s$ToString()
s$num_fields()
s$field(i)

Methods

• $ToString(): convert to a string

• $num_fields(): returns the number of fields

• $field(i): returns the field at index i (0-based)