Its a trick.
There are 2 vessels:
the outer that we saw, and an inner one, transparent and soft.
Stopt it at 1:48 you will see the water move out from the bottom. Under atmospheric pression the vessel merge down. The image after this moment is truncated and we can not see the remnants in the table.
The water was previously set in rotational motion (before the image restarts after those words).
It is not needed to explore the inner characteristics of the inner vessel but I will try.
My first tough : It can be a soft plastic bag.
My second try: It can be made of ice. But I suspect it is not so. Rinse the interoir of the vessel, then fridge until ice coated. Rinse again, and repeat,...or two equal vessels one inside the other separated by water and fridge.
Now, with the tiny ice coating prepared. Rinse the exterior of the vessel with warm water. Wait a little and the exterior will be decoupled from the interior vessel. Start the show
added again, my final conclusion
It is a soft bag. The rotational effect is really need to keep the vertical wall under more tension and will prevent the object from immediate collapse. The centrifugal force will add strength to the vertical wall and the vertical component of force will be lower.
If it was the icy vessel the rotational effect was not needed.