SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 2) Function avgWeighted (alias t) (children 1) ExpressionList (children 2) Identifier number Function if (children 1) ExpressionList (children 3) Function less (children 1) ExpressionList (children 2) Identifier number Literal UInt64_10000 Literal NULL Identifier number Function toTypeName (children 1) ExpressionList (children 1) Identifier t TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Function numbers (children 1) ExpressionList (children 1) Literal UInt64_100