| Type: | real |
| Default: | 0.1 |
| Min: | 0 |
| Max: | 1.79769e+308 |
| Context: | user |
| Restart: | false |
| Since: | 9.6 |
Sets the planner's estimate of the cost of transferring one tuple from a parallel worker process to another process. The default is 0.1.