SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 3) Identifier a Identifier b Function ntile (children 1) ExpressionList (children 1) Literal UInt64_3 TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Subquery (children 1) SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 2) Function intDiv (alias a) (children 1) ExpressionList (children 2) Identifier number Literal UInt64_10 Function modulo (alias b) (children 1) ExpressionList (children 2) Identifier number Literal UInt64_10 TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Function numbers (children 1) ExpressionList (children 1) Literal UInt64_20