Required columns that the result tables must have.
Source:R/classSummarisedResult.R
      resultColumns.RdRequired columns that the result tables must have.
Examples
library(omopgenerics)
resultColumns()
#>  [1] "result_id"        "cdm_name"         "group_name"       "group_level"     
#>  [5] "strata_name"      "strata_level"     "variable_name"    "variable_level"  
#>  [9] "estimate_name"    "estimate_type"    "estimate_value"   "additional_name" 
#> [13] "additional_level"