SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 5) ExpressionList (children 2) Identifier number Function count (children 1) ExpressionList TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Subquery (children 1) SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 1) Identifier number TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier system.numbers Literal UInt64_200000 ExpressionList (children 1) Identifier number ExpressionList (children 2) OrderByElement (children 1) Function count (children 1) ExpressionList OrderByElement (children 1) Identifier number Literal UInt64_10