Calculates and returns the convex hull for the values in a table specified by input parameter table_name.
Input Parameter Description
| Name | Type | Description |
|---|---|---|
| table_name | string | Name of table on which the operation will be performed. Must be an existing table, in [schema_name.]table_name format, using standard name resolution rules. |
| x_column_name | string | Name of the column containing the x coordinates of the points for the operation being performed. |
| y_column_name | string | Name of the column containing the y coordinates of the points for the operation being performed. |
| options | map of string to strings | Optional parameters. The default value is an empty map ( {} ). |
Output Parameter Description
| Name | Type | Description |
|---|---|---|
| x_vector | array of doubles | Array of x coordinates of the resulting convex set. |
| y_vector | array of doubles | Array of y coordinates of the resulting convex set. |
| count | int | Count of the number of points in the convex set. |
| is_valid | boolean | |
| info | map of string to strings | Additional information. |
