SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 4) Function isDecimalOverflow (children 1) ExpressionList (children 2) Function toDecimal32 (children 1) ExpressionList (children 2) Literal UInt64_999999999 Literal UInt64_0 Literal UInt64_9 Function isDecimalOverflow (children 1) ExpressionList (children 1) Function toDecimal32 (children 1) ExpressionList (children 2) Literal UInt64_999999999 Literal UInt64_0 Function isDecimalOverflow (children 1) ExpressionList (children 2) Function toDecimal32 (children 1) ExpressionList (children 2) Literal Int64_-999999999 Literal UInt64_0 Literal UInt64_9 Function isDecimalOverflow (children 1) ExpressionList (children 1) Function toDecimal32 (children 1) ExpressionList (children 2) Literal Int64_-999999999 Literal UInt64_0