SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 1) Function arrayShiftLeft (children 1) ExpressionList (children 3) Literal Array_[Array_[UInt64_1, UInt64_2], Array_[UInt64_3, UInt64_4], Array_[UInt64_5, UInt64_6]] Literal UInt64_2 Literal Array_[UInt64_7, UInt64_8]