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Diffstat (limited to 'src/backend/utils/time/snapmgr.c')
| -rw-r--r-- | src/backend/utils/time/snapmgr.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/backend/utils/time/snapmgr.c b/src/backend/utils/time/snapmgr.c index f68a15b90b6..9029fd0ed3b 100644 --- a/src/backend/utils/time/snapmgr.c +++ b/src/backend/utils/time/snapmgr.c @@ -1447,6 +1447,14 @@ DeleteAllExportedSnapshotFiles(void) FreeDir(s_dir); } +/* + * ThereAreNoPriorRegisteredSnapshots + * Is the registered snapshot count less than or equal to one? + * + * Don't use this to settle important decisions. While zero registrations and + * no ActiveSnapshot would confirm a certain idleness, the system makes no + * guarantees about the significance of one registered snapshot. + */ bool ThereAreNoPriorRegisteredSnapshots(void) { |