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-rw-r--r--contrib/amcheck/verify_heapam.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/contrib/amcheck/verify_heapam.c b/contrib/amcheck/verify_heapam.c
index 4fcfd6df72d..33c5b338959 100644
--- a/contrib/amcheck/verify_heapam.c
+++ b/contrib/amcheck/verify_heapam.c
@@ -1576,6 +1576,9 @@ FullTransactionIdFromXidAndCtx(TransactionId xid, const HeapCheckContext *ctx)
{
uint32 epoch;
+ Assert(TransactionIdIsNormal(ctx->next_xid));
+ Assert(FullTransactionIdIsNormal(ctx->next_fxid));
+
if (!TransactionIdIsNormal(xid))
return FullTransactionIdFromEpochAndXid(0, xid);
epoch = EpochFromFullTransactionId(ctx->next_fxid);
@@ -1597,8 +1600,8 @@ update_cached_xid_range(HeapCheckContext *ctx)
LWLockRelease(XidGenLock);
/* And compute alternate versions of the same */
- ctx->oldest_fxid = FullTransactionIdFromXidAndCtx(ctx->oldest_xid, ctx);
ctx->next_xid = XidFromFullTransactionId(ctx->next_fxid);
+ ctx->oldest_fxid = FullTransactionIdFromXidAndCtx(ctx->oldest_xid, ctx);
}
/*