addConstantColumn: Add constant to a table.

In WinVector/replyr: Patches to Use 'dplyr' on Remote Data Sources

Description

Work around different treatment of character types across remote data sources when adding a constant column to a table. Deals with issues such as Postgresql requiring a character-cast and MySQL not allowing such.

Usage

addConstantColumn(
  d,
  colName,
  val,
  ...,
  tempNameGenerator = mk_tmp_name_source("replyr_addConstantColumn")
)

Arguments

d	data.frame like object to add column to.
colName	character, name of column to add.
val	scalar, value to add.
...	force later arguments to be bound by name.
tempNameGenerator	temp name generator produced by wrapr::mk_tmp_name_source, used to record dplyr::compute() effects.

Value

table with new column added.

Examples

d <- data.frame(x= c(1:3))
addConstantColumn(d, 'newCol', 'newVal')

WinVector/replyr documentation built on Oct. 22, 2020, 8:07 p.m.