SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 1) Function round (children 1) ExpressionList (children 2) Function covarPop (children 1) ExpressionList (children 2) Identifier ResolutionWidth Identifier ResolutionHeight Literal UInt64_6 TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier test.hits