aboutsummaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/backend/catalog/pg_subscription.c18
-rw-r--r--src/include/catalog/pg_subscription_rel.h13
2 files changed, 27 insertions, 4 deletions
diff --git a/src/backend/catalog/pg_subscription.c b/src/backend/catalog/pg_subscription.c
index 8705d8b1d36..0ce08f7c5b5 100644
--- a/src/backend/catalog/pg_subscription.c
+++ b/src/backend/catalog/pg_subscription.c
@@ -457,13 +457,20 @@ GetSubscriptionRelations(Oid subid)
{
Form_pg_subscription_rel subrel;
SubscriptionRelState *relstate;
+ Datum d;
+ bool isnull;
subrel = (Form_pg_subscription_rel) GETSTRUCT(tup);
relstate = (SubscriptionRelState *) palloc(sizeof(SubscriptionRelState));
relstate->relid = subrel->srrelid;
relstate->state = subrel->srsubstate;
- relstate->lsn = subrel->srsublsn;
+ d = SysCacheGetAttr(SUBSCRIPTIONRELMAP, tup,
+ Anum_pg_subscription_rel_srsublsn, &isnull);
+ if (isnull)
+ relstate->lsn = InvalidXLogRecPtr;
+ else
+ relstate->lsn = DatumGetLSN(d);
res = lappend(res, relstate);
}
@@ -509,13 +516,20 @@ GetSubscriptionNotReadyRelations(Oid subid)
{
Form_pg_subscription_rel subrel;
SubscriptionRelState *relstate;
+ Datum d;
+ bool isnull;
subrel = (Form_pg_subscription_rel) GETSTRUCT(tup);
relstate = (SubscriptionRelState *) palloc(sizeof(SubscriptionRelState));
relstate->relid = subrel->srrelid;
relstate->state = subrel->srsubstate;
- relstate->lsn = subrel->srsublsn;
+ d = SysCacheGetAttr(SUBSCRIPTIONRELMAP, tup,
+ Anum_pg_subscription_rel_srsublsn, &isnull);
+ if (isnull)
+ relstate->lsn = InvalidXLogRecPtr;
+ else
+ relstate->lsn = DatumGetLSN(d);
res = lappend(res, relstate);
}
diff --git a/src/include/catalog/pg_subscription_rel.h b/src/include/catalog/pg_subscription_rel.h
index 556cb94841d..b907b4468d7 100644
--- a/src/include/catalog/pg_subscription_rel.h
+++ b/src/include/catalog/pg_subscription_rel.h
@@ -34,8 +34,17 @@ CATALOG(pg_subscription_rel,6102,SubscriptionRelRelationId) BKI_WITHOUT_OIDS
Oid srsubid; /* Oid of subscription */
Oid srrelid; /* Oid of relation */
char srsubstate; /* state of the relation in subscription */
- XLogRecPtr srsublsn; /* remote lsn of the state change used for
- * synchronization coordination */
+
+ /*
+ * Although srsublsn is a fixed-width type, it is allowed to be NULL, so
+ * we prevent direct C code access to it just as for a varlena field.
+ */
+#ifdef CATALOG_VARLEN /* variable-length fields start here */
+
+ XLogRecPtr srsublsn; /* remote LSN of the state change used for
+ * synchronization coordination, or NULL if
+ * not valid */
+#endif
} FormData_pg_subscription_rel;
typedef FormData_pg_subscription_rel *Form_pg_subscription_rel;