diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/commands/vacuumparallel.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/backend/commands/vacuumparallel.c b/src/backend/commands/vacuumparallel.c index 49e605a6ffc..dc3322c256b 100644 --- a/src/backend/commands/vacuumparallel.c +++ b/src/backend/commands/vacuumparallel.c @@ -1032,6 +1032,13 @@ parallel_vacuum_main(dsm_segment *seg, shm_toc *toc) vac_open_indexes(rel, RowExclusiveLock, &nindexes, &indrels); Assert(nindexes > 0); + /* + * Apply the desired value of maintenance_work_mem within this process. + * Really we should use SetConfigOption() to change a GUC, but since we're + * already in parallel mode guc.c would complain about that. Fortunately, + * by the same token guc.c will not let any user-defined code change it. + * So just avert your eyes while we do this: + */ if (shared->maintenance_work_mem_worker > 0) maintenance_work_mem = shared->maintenance_work_mem_worker; |