Fix oldest xmin in logical decoding.

Offering: openGaussDev

More detail: Fix oldest xmin in logical decoding.

Match-id-d652068e86f96a843c7212f959f72c855635a2ed

src/gausskernel/process/tcop/postgres.cpp

@@ -9237,6 +9237,7 @@ int PostgresMain(int argc, char* argv[], const char* dbname, const char* usernam
                                               InvalidTransactionTimeline, ss_need_sync_wait_all);
                         /* quickly set my recent global xmin */
                         u_sess->utils_cxt.RecentGlobalXmin = GetOldestXmin(NULL, true);
+                        u_sess->utils_cxt.RecentGlobalCatalogXmin = GetOldestCatalogXmin();
                     }
                 }
                 /* check gtm mode, remote should be false, local cannot be true */