fix issue in RunQuery related to incomplete column spec

[samussiah]

Overview

An issue popped up running the Groups workflow where RunQuery couldn't find a type attribute on a column spec. This PR enforces the column spec data structure.

Test Notes/Sample Code

  # Create a sample data frame
  df <- data.frame(
    Name = c("John", "Jane", "Bob")
  )
  lColumnMapping <- list(
    emaN = list(
      source = 'Name'
    )
  )

  # Define the query and mapping
  query <- "SELECT Name as emaN FROM df WHERE Name LIKE '%o%'"

  # Call the RunQuery function and expect no error
  expect_no_error(result <- RunQuery(query, df, bUseSchema = T, lColumnMapping = lColumnMapping))
  expect_equal(class(result$emaN), "character")

Connected Issues

• Closes #XXX

[lauramaxwell]

looks good- thanks!