database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-20 05:03:10 +03:00
Code Activity

Avoid xid error from age() function when run on Hot Standby

Browse Source
This commit is contained in:
Simon Riggs
2012-05-09 14:00:09 +01:00
parent 14c412da46
commit d02918fc3e
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/backend/utils/adt/xid.c
View File

@ -93,7 +93,10 @@ Datum
xid_age(PG_FUNCTION_ARGS) xid_age(PG_FUNCTION_ARGS)
{ {
TransactionId xid = PG_GETARG_TRANSACTIONID(0); TransactionId xid = PG_GETARG_TRANSACTIONID(0);
TransactionId now = GetTopTransactionId(); TransactionId now = GetTopTransactionIdIfAny();
if (!TransactionIdIsValid(now))
now = ReadNewTransactionId();
/* Permanent XIDs are always infinitely old */ /* Permanent XIDs are always infinitely old */
if (!TransactionIdIsNormal(xid)) if (!TransactionIdIsNormal(xid))