SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 1) Function deltaSumTimestamp (children 1) ExpressionList (children 2) Identifier value Identifier timestamp TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Subquery (children 1) SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 2) Identifier number (alias timestamp) Function arrayElement (alias value) (children 1) ExpressionList (children 2) Literal Array_[UInt64_0, UInt64_4, UInt64_8, UInt64_3, UInt64_0, UInt64_0, UInt64_0, UInt64_1, UInt64_3, UInt64_5] Identifier number TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Function numbers (children 1) ExpressionList (children 2) Literal UInt64_1 Literal UInt64_10