anchor.diff:  
   UPDATE STATISTICS processing time can be lengthy for very large tables.
   One strategy for reducing the time is to create histograms only for
  -columns that actually need them (for example, using the ON NECESSARY COLUMNS 
  +columns that actually need them (for example, using the ON NECESSARY COLUMNS
   column group). Another strategy is to update statistics incrementally. These
   strategies can be used together if desired.
   
  
positive.code: 
  [cols=","]
  |===
  | <<load_statement,LOAD Statement>>                           | Uses the {project-name} Bulk Loader to load data from a source table, either
  a {project-name} table or a Hive table, into a target {project-name} table.
  | <<populate_index_utility,POPULATE INDEX Utility>>           | Loads indexes.
  
negative.code: **** `r_ rows`
  +
  A row sample is used to read _r_ rows from the table. The value _r_ must
  be an integer that is greater than zero
  
  **** `RANDOM _percent_ PERCENT`
  +
  