hi all, above helped me solve a solid of revolution, but now I have to do the solid of intersection of the following graphs

ContourPlot[{y^2 - 2 y == x, y == x}, {x, -1, 3}, {y, -1, 3}]

the problem is that I have not yet a clear idea of ??how to make this work,I have tried to convert it to its polar form as follows,

y^2 - 2 y == x /. {x -> r Cos[\[Theta]] , y -> r*Sin[\[Theta]]}

Solve[%, r]

mpediment remains the 3d intersection graph of functions, any solution to this is welcome