diff options
Diffstat (limited to 'src/include/postmaster/postmaster.h')
| -rw-r--r-- | src/include/postmaster/postmaster.h | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/src/include/postmaster/postmaster.h b/src/include/postmaster/postmaster.h index d8a9f14b3b8..b6a3f275a1b 100644 --- a/src/include/postmaster/postmaster.h +++ b/src/include/postmaster/postmaster.h @@ -127,18 +127,6 @@ extern bool ReleasePostmasterChildSlot(PMChild *pmchild); extern PMChild *FindPostmasterChildByPid(int pid); /* - * Note: MAX_BACKENDS is limited to 2^18-1 because that's the width reserved - * for buffer references in buf_internals.h. This limitation could be lifted - * by using a 64bit state; but it's unlikely to be worthwhile as 2^18-1 - * backends exceed currently realistic configurations. Even if that limitation - * were removed, we still could not a) exceed 2^23-1 because inval.c stores - * the ProcNumber as a 3-byte signed integer, b) INT_MAX/4 because some places - * compute 4*MaxBackends without any overflow check. This is rechecked in the - * relevant GUC check hooks and in RegisterBackgroundWorker(). - */ -#define MAX_BACKENDS 0x3FFFF - -/* * These values correspond to the special must-be-first options for dispatching * to various subprograms. parse_dispatch_option() can be used to convert an * option name to one of these values. |