Execute a side effect function for every row in the frame, returning the same Frame.
Execute a side effect function for every row in the frame, returning the same Frame.
the function to execute
this frame, to allow for builder style chaining
Execute some arbitary sql against this Frame.
Returns a new Frame where only each "step" row is retained.
Returns a new Frame where only each "step" row is retained. Ie, if step is 2 then rows 1,3,5,7 will be retainined and if step was 10, then 1,11,21,31 etc.