SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 3) Function sum (children 1) ExpressionList (children 1) Identifier AdvEngineID Function count (children 1) ExpressionList Function avg (children 1) ExpressionList (children 1) Identifier ResolutionWidth TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier test.hits