SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 1) Function arrayElement (children 1) ExpressionList (children 2) Function array (children 1) ExpressionList (children 1) Identifier number Function arrayJoin (children 1) ExpressionList (children 1) Literal Array_[UInt64_18446744073709551615, UInt64_10000000000, UInt64_0, UInt64_1] TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Function numbers (children 1) ExpressionList (children 1) Literal UInt64_2