Is your feature request related to a problem?
Some aggregation functions are supported in the legacy engine and not the V2 engine. As Legacy engine is becoming deprecated we need to support this functionality in the V2 engine.

What solution would you like?
Port over functionality for the aggregation functions to the V2 engine. Additionally we will want these functions added to the PPL query language.

Release-Schedule

• P[0] histogram
• P[0] date_histogram
• P[0] percentiles
• P[0] topHits
• P[0] geo_polygon
• P[0] geo_bounding_box
• P[0] geo_distance
• P[0] geo_intersects
• P[0] stats
• P[0] extended_stats
• P[0] ... GROUP BY terms(...
• P[0] ... GROUP BY range(...

What alternatives have you considered?
N/A

Do you have any additional context?
N/A