ST_Hexagon
Name
ST_Hexagon — Returns a single hexagon, using the provided edge size and cell coordinate within the hexagon grid space.
Synopsis
    
     geometry
     
      ST_Hexagon
     
     (
    
    float8
    
     size
    
    , integer
    
     cell_i
    
    , integer
    
     cell_j
    
    , geometry
    
     origin
    
    
     )
    
    ;
   
Description
Uses the same hexagon tiling concept as ST_HexagonGrid , but generates just one hexagon at the desired cell coordinate. Optionally, can adjust origin coordinate of the tiling, the default origin is at 0,0.
Hexagons are generated with no SRID set, so use ST_SetSRID to set the SRID to the one you expect.
Availability: 3.1.0