anchor.diff:  |count()
   |
   |java.lang.Long
  -|number of rows, similar to _count(*)_ in SQL
  +|number of rows, similar to `count(*)` in SQL
   
   |count(_expression_)
   |any
  
positive.code: |count()
  |
  |java.lang.Long
  |number of rows, similar to _count(*)_ in SQL
  
  |count(_expression_)
  |any
  
negative.code: |ntile(_expression_)
  |java.lang.Long
  |java.lang.Long
  |bucket index ranging from `0` to `expression - 1`, dividing the partition as equally as possible
  
  |lead(_expression_ [, _offset_ [, _default_]])
  |any [, java.lang.Long [, same as _expression_ type]]
  