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| author | Robert Haas <rhaas@postgresql.org> | 2015-10-16 17:18:05 -0400 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2015-10-16 17:18:05 -0400 |
| commit | b0b0d84b3d663a148022e900ebfc164284a95f55 (patch) | |
| tree | 4bf51bc140d3a8a0a094e1353c57c40bfa4315ca /src/include/access/parallel.h | |
| parent | afdfcd3f7617c9b7be5966d66ddabdc2e92eb99b (diff) | |
Allow a parallel context to relaunch workers.
This may allow some callers to avoid the overhead involved in tearing
down a parallel context and then setting up a new one, which means
releasing the DSM and then allocating and populating a new one. I
suspect we'll want to revise the Gather node to make use of this new
capability, but even if not it may be useful elsewhere and requires
very little additional code.
Diffstat (limited to 'src/include/access/parallel.h')
| -rw-r--r-- | src/include/access/parallel.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/access/parallel.h b/src/include/access/parallel.h index 44f0616cb86..d4b7c5dd75b 100644 --- a/src/include/access/parallel.h +++ b/src/include/access/parallel.h @@ -35,6 +35,7 @@ typedef struct ParallelContext dlist_node node; SubTransactionId subid; int nworkers; + int nworkers_launched; parallel_worker_main_type entrypoint; char *library_name; char *function_name; |