Select Columns

It lets the user select a list of columns from the dataframe.

This transformation expects user to provide below inputs:

Input Arguments	Mandatory	Default Value	Description
column-names	Yes	-	It is the list of columns required by user

For example, consider we have below restonomer response in json:

{
  "col_A": 5,
  "col_B": 4,
  "col_C": 3.4678
}

Now, suppose the requirement is to select 2 columns from dataframe :

  "col_B": 4,
  "col_C": 3.4678

Then, user can configure the SelectColumns transformation in the below manner:

{
  type = "SelectColumns"
  column-names= ["col_B", "col_C"]
  }

The transformed response will select the desired column from dataframe as shown below.

{
  "col_B": 4,
  "col_C": 3.4678
}