Table point_2d holds the coordinates (x,y) of some unique points (more than two) in a plane.
Write a query to find the shortest distance between these points rounded to 2 decimals.
| x | y | |----|----| | -1 | -1 | | 0 | 0 | | -1 | -2 |
The shortest distance is 1.00 from point (-1,-1) to (-1,2). So the output should be:
| shortest | |----------| | 1.00 |
Note: The longest distance among all the points are less than 10000.
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