Initialize work_mem using current guc.c default.
Do the same for the maintenance_work_mem global variable.
Oversight in commit which increased the previous defaults
for work_mem and maintenance_work_mem by 4X.
@@ -118,8 +118,8 @@ int IntervalStyle = INTSTYLE_POSTGRES;
bool enableFsync = true;
bool allowSystemTableMods = false;
-int work_mem = 1024;
-int maintenance_work_mem = 16384;
+int work_mem = 4096;
+int maintenance_work_mem = 65536;
int max_parallel_maintenance_workers = 2;
/*
