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Diffstat (limited to 'src/backend/access/transam/README.parallel')
| -rw-r--r-- | src/backend/access/transam/README.parallel | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/backend/access/transam/README.parallel b/src/backend/access/transam/README.parallel index dfcbafabf08..db9ac3d504d 100644 --- a/src/backend/access/transam/README.parallel +++ b/src/backend/access/transam/README.parallel @@ -222,7 +222,9 @@ pattern looks like this: ExitParallelMode(); -If desired, after WaitForParallelWorkersToFinish() has been called, another -call to LaunchParallelWorkers() can be made using the same parallel context. -Calls to these two functions can be alternated any number of times before -destroying the parallel context. +If desired, after WaitForParallelWorkersToFinish() has been called, the +context can be reset so that workers can be launched anew using the same +parallel context. To do this, first call ReinitializeParallelDSM() to +reinitialize state managed by the parallel context machinery itself; then, +perform any other necessary resetting of state; after that, you can again +call LaunchParallelWorkers. |