jiayuasu commented on code in PR #1294:
URL: https://github.com/apache/sedona/pull/1294#discussion_r1540068565


##########
docs/api/sql/Function.md:
##########
@@ -2940,9 +2940,17 @@ POINT (-70.01 44.37)
 
 ## ST_Union
 
-Introduction: Return the union of geometry A and B
+Introduction:
+
+Variant 1: Return the union of geometry A and B.

Review Comment:
   1. Can you also update the ST_H3toGeom and ST_S2toGeom doc to explain how 
this ST_Union works in conjunction with these functions?
   
   2. What happens to polygons that could not be unioned (polygons that share 
no boundaries)?



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