SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 1) Function floor (alias distance) (children 1) ExpressionList (children 1) Function greatCircleDistance (children 1) ExpressionList (children 4) Literal Float64_33.3 Literal Float64_55.3 Literal Float64_33.3 Literal Float64_55.3