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Diffstat (limited to 'src/backend/access/transam/xact.c')
| -rw-r--r-- | src/backend/access/transam/xact.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c index 3dab45c2da6..c151d3be191 100644 --- a/src/backend/access/transam/xact.c +++ b/src/backend/access/transam/xact.c @@ -2067,6 +2067,16 @@ PrepareTransaction(void) (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), errmsg("cannot PREPARE a transaction that has operated on temporary tables"))); + /* + * Likewise, don't allow PREPARE after pg_export_snapshot. This could be + * supported if we added cleanup logic to twophase.c, but for now it + * doesn't seem worth the trouble. + */ + if (XactHasExportedSnapshots()) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot PREPARE a transaction that has exported snapshots"))); + /* Prevent cancel/die interrupt while cleaning up */ HOLD_INTERRUPTS(); |