SELECT parent.gid FROM proc.gfn_rdsid78 parent

SELECT the_geom::geometry(Polygon, 4326) as geom
FROM DE_RegularQuadGrid((SELECT child.geom FROM proc.gfn_rdsid78 child WHERE child.gid = 1276643),
                    'rds_autogenerated.rdsid78_pointseed_urbanflood_singlepoint',
                    'geom',
                    3,
                    10)