diff options
Diffstat (limited to 'src/backend/access/transam/xact.c')
| -rw-r--r-- | src/backend/access/transam/xact.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c index 5ae46dee9b5..49c14cb64c0 100644 --- a/src/backend/access/transam/xact.c +++ b/src/backend/access/transam/xact.c @@ -393,8 +393,10 @@ GetCurrentTransactionIdIfAny(void) /* * GetStableLatestTransactionId * - * Get the XID once and then return same value for rest of transaction. - * Acts as a useful reference point for maintenance tasks. + * Get the transaction's XID if it has one, else read the next-to-be-assigned + * XID. Once we have a value, return that same value for the remainder of the + * current transaction. This is meant to provide the reference point for the + * age(xid) function, but might be useful for other maintenance tasks as well. */ TransactionId GetStableLatestTransactionId(void) |