diff --git a/src/gausskernel/optimizer/commands/subscriptioncmds.cpp b/src/gausskernel/optimizer/commands/subscriptioncmds.cpp
index 9c2f23ac1..10448434f 100644
--- a/src/gausskernel/optimizer/commands/subscriptioncmds.cpp
+++ b/src/gausskernel/optimizer/commands/subscriptioncmds.cpp
@@ -559,6 +559,7 @@ ObjectAddress CreateSubscription(CreateSubscriptionStmt *stmt, bool isTopLevel)
         }
 
         if (!CheckPublicationsExistOnPublisher(publications)) {
+            (WalReceiverFuncTable[GET_FUNC_IDX]).walrcv_disconnect();
             ereport(ERROR, (errmsg("There are some publications not exist on the publisher.")));
         }
 
@@ -947,6 +948,7 @@ ObjectAddress AlterSubscription(AlterSubscriptionStmt *stmt, bool isTopLevel)
             ereport(ERROR, (errcode(ERRCODE_CONNECTION_FAILURE), errmsg( "Failed to connect to publisher.")));
         }
         if (!CheckPublicationsExistOnPublisher(publications)) {
+            (WalReceiverFuncTable[GET_FUNC_IDX]).walrcv_disconnect();
             ereport(ERROR, (errmsg("There are some publications not exist on the publisher.")));
         }
         (WalReceiverFuncTable[GET_FUNC_IDX]).walrcv_disconnect();
@@ -967,6 +969,7 @@ ObjectAddress AlterSubscription(AlterSubscriptionStmt *stmt, bool isTopLevel)
         }
 
         if (!CheckPublicationsExistOnPublisher(publications)) {
+            (WalReceiverFuncTable[GET_FUNC_IDX]).walrcv_disconnect();
             ereport(ERROR, (errmsg("There are some publications not exist on the publisher.")));
         }
 
diff --git a/src/gausskernel/storage/replication/logical/tablesync.cpp b/src/gausskernel/storage/replication/logical/tablesync.cpp
index 2e457e679..11484ae5d 100644
--- a/src/gausskernel/storage/replication/logical/tablesync.cpp
+++ b/src/gausskernel/storage/replication/logical/tablesync.cpp
@@ -696,7 +696,8 @@ static void fetch_remote_table_info(char *nspname, char *relname, LogicalRepRela
         "       ON (i.indexrelid = pg_get_replica_identity_index(%u))"
         " WHERE a.attnum > 0::pg_catalog.int2"
         "   AND NOT a.attisdropped"
-        "   AND NOT EXISTS (SELECT * FROM pg_attrdef b WHERE b.adrelid = a.attrelid AND b.adnum = a.attnum)"
+        "   AND NOT EXISTS (SELECT * FROM pg_attrdef b WHERE b.adrelid = a.attrelid AND b.adnum = a.attnum"
+        " AND b.adgencol = 's')"
         "   AND a.attrelid = %u"
         " ORDER BY a.attnum",
         lrel->remoteid, lrel->remoteid);
diff --git a/src/test/subscription/schedule b/src/test/subscription/schedule
index 123fe13d0..c66d5af9b 100644
--- a/src/test/subscription/schedule
+++ b/src/test/subscription/schedule
@@ -7,3 +7,6 @@ diff_schema
 generated
 rewrite
 sync
+encoding
+ddl
+matviews
\ No newline at end of file
diff --git a/src/test/subscription/testcase/bugs.sh b/src/test/subscription/testcase/bugs.sh
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/test/subscription/testcase/ddl.sh b/src/test/subscription/testcase/ddl.sh
new file mode 100644
index 000000000..944391687
--- /dev/null
+++ b/src/test/subscription/testcase/ddl.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+
+source $1/env_utils.sh $1 $2
+
+case_db="ddl_db"
+
+# Test some logical replication DDL behavior
+function test_1() {
+	echo "create database and tables."
+	exec_sql $db $pub_node1_port "CREATE DATABASE $case_db"
+	exec_sql $db $sub_node1_port "CREATE DATABASE $case_db"
+
+	exec_sql $case_db $pub_node1_port "CREATE TABLE test1 (a int, b text);"
+	exec_sql $case_db $sub_node1_port "CREATE TABLE test1 (a int, b text);"
+
+	# Setup logical replication
+	echo "create publication and subscription."
+	publisher_connstr="port=$pub_node1_port host=$g_local_ip dbname=$case_db user=$username password=$passwd"
+	exec_sql $case_db $pub_node1_port "CREATE PUBLICATION mypub FOR ALL TABLES;"
+
+	# One of the specified publications exists.
+	exec_sql $case_db $sub_node1_port "CREATE SUBSCRIPTION mysub CONNECTION '$publisher_connstr' PUBLICATION mypub, non_existent_pub" 2> exec.out
+	if [ "$(cat exec.out)" = "ERROR:  There are some publications not exist on the publisher." ]; then
+		echo "check create subscription throws warning for non-existent publication success"
+	else
+		echo "$failed_keyword when check create subscription throws warning for non-existent publication"
+		exit 1
+	fi
+	rm exec.out
+
+	exec_sql $case_db $sub_node1_port "CREATE SUBSCRIPTION mysub CONNECTION '$publisher_connstr' PUBLICATION mypub"
+
+	wait_for_subscription_sync $case_db $sub_node1_port "mysub"
+
+	# Specifying non-existent publication along with set publication.
+	exec_sql $case_db $sub_node1_port "ALTER SUBSCRIPTION mysub SET PUBLICATION non_existent_pub" 2> exec.out
+	if [ "$(cat exec.out)" = "ERROR:  There are some publications not exist on the publisher." ]; then
+		echo "check alter subscription set publication throws warning for non-existent publications success"
+	else
+		echo "$failed_keyword when check alter subscription set publication throws warning for non-existent publications"
+		exit 1
+	fi
+	rm exec.out
+}
+
+function tear_down() {
+	exec_sql $case_db $sub_node1_port "DROP SUBSCRIPTION IF EXISTS mysub"
+	exec_sql $case_db $pub_node1_port "DROP PUBLICATION IF EXISTS mypub"
+
+	exec_sql $db $sub_node1_port "DROP DATABASE $case_db"
+	exec_sql $db $pub_node1_port "DROP DATABASE $case_db"
+
+	echo "tear down"
+}
+
+test_1
+tear_down
\ No newline at end of file
diff --git a/src/test/subscription/testcase/encoding.sh b/src/test/subscription/testcase/encoding.sh
new file mode 100644
index 000000000..290ba6a8a
--- /dev/null
+++ b/src/test/subscription/testcase/encoding.sh
@@ -0,0 +1,48 @@
+#!/bin/sh
+
+source $1/env_utils.sh $1 $2
+
+case_db="encoding_db"
+
+# Test replication between databases with different encodings
+function test_1() {
+	echo "create database and tables."
+	exec_sql $db $pub_node1_port "CREATE DATABASE $case_db WITH encoding 'UTF8'"
+	exec_sql $db $sub_node1_port "CREATE DATABASE $case_db WITH LC_CTYPE 'en_US' encoding 'LATIN1' lc_collate 'en_US'"
+
+	exec_sql $case_db $pub_node1_port "CREATE TABLE test1 (a int, b text);"
+	exec_sql $case_db $sub_node1_port "CREATE TABLE test1 (a int, b text);"
+
+	# Setup logical replication
+	echo "create publication and subscription."
+	publisher_connstr="port=$pub_node1_port host=$g_local_ip dbname=$case_db user=$username password=$passwd"
+	exec_sql $case_db $pub_node1_port "CREATE PUBLICATION mypub FOR ALL TABLES;"
+	exec_sql $case_db $sub_node1_port "CREATE SUBSCRIPTION mysub CONNECTION '$publisher_connstr' PUBLICATION mypub"
+
+	# Wait for initial sync to finish
+	wait_for_subscription_sync $case_db $sub_node1_port "mysub"
+
+	exec_sql $case_db $pub_node1_port "INSERT INTO test1 VALUES (1, E'Mot\xc3\xb6rhead')"
+
+	wait_for_catchup $case_db $pub_node1_port "mysub"
+
+	if [ "$(exec_sql $case_db $sub_node1_port "SELECT a FROM test1 WHERE b = E'Mot\xf6rhead'")" = "1" ]; then
+		echo "check data replicated to subscriber success"
+	else
+		echo "$failed_keyword when check data replicated to subscriber"
+		exit 1
+	fi
+}
+
+function tear_down() {
+	exec_sql $case_db $sub_node1_port "DROP SUBSCRIPTION IF EXISTS mysub"
+	exec_sql $case_db $pub_node1_port "DROP PUBLICATION IF EXISTS mypub"
+
+	exec_sql $db $sub_node1_port "DROP DATABASE $case_db"
+	exec_sql $db $pub_node1_port "DROP DATABASE $case_db"
+
+	echo "tear down"
+}
+
+test_1
+tear_down
\ No newline at end of file
diff --git a/src/test/subscription/testcase/generated.sh b/src/test/subscription/testcase/generated.sh
index 5c7de1f73..b369d4be2 100644
--- a/src/test/subscription/testcase/generated.sh
+++ b/src/test/subscription/testcase/generated.sh
@@ -11,10 +11,13 @@ function test_1() {
 	exec_sql $db $sub_node1_port "CREATE DATABASE $case_db"
 
     exec_sql $case_db $pub_node1_port "CREATE TABLE tab1 (a int PRIMARY KEY, b int GENERATED ALWAYS AS (a * 2) STORED)"
+	exec_sql $case_db $pub_node1_port "CREATE TABLE tab2 (a int PRIMARY KEY, b int default 5)"
 	exec_sql $case_db $sub_node1_port "CREATE TABLE tab1 (a int PRIMARY KEY, b int GENERATED ALWAYS AS (a * 22) STORED)"
+	exec_sql $case_db $sub_node1_port "CREATE TABLE tab2 (a int PRIMARY KEY, b int default 10)"
 
     # data for initial sync
     exec_sql $case_db $pub_node1_port "INSERT INTO tab1 (a) VALUES (1), (2), (3)"
+	exec_sql $case_db $pub_node1_port "INSERT INTO tab2 (a) VALUES (1), (2), (3)"
 
     echo "create publication and subscription."
     publisher_connstr="port=$pub_node1_port host=$g_local_ip dbname=$case_db user=$username password=$passwd"
@@ -37,9 +40,19 @@ function test_1() {
 		exit 1
 	fi
 
+	if [ "$(exec_sql $case_db $sub_node1_port "SELECT a, b FROM tab2")" = "1|5
+2|5
+3|5" ]; then
+		echo "check default columns initial sync success"
+	else
+		echo "$failed_keyword when default columns initial sync"
+		exit 1
+	fi
+
     # data to replicate
     exec_sql $case_db $pub_node1_port "INSERT INTO tab1 VALUES (4), (5)"
     exec_sql $case_db $pub_node1_port "UPDATE tab1 SET a = 6 WHERE a = 5"
+	exec_sql $case_db $pub_node1_port "INSERT INTO tab2 VALUES (4), (5)"
 
     wait_for_catchup $case_db $pub_node1_port "sub1"
 
@@ -53,6 +66,17 @@ function test_1() {
 		echo "$failed_keyword when generated columns replicated"
 		exit 1
 	fi
+
+	if [ "$(exec_sql $case_db $sub_node1_port "SELECT a, b FROM tab2")" = "1|5
+2|5
+3|5
+4|5
+5|5" ]; then
+		echo "check default columns replicated success"
+	else
+		echo "$failed_keyword when default columns replicated"
+		exit 1
+	fi
 }
 
 function tear_down() {
diff --git a/src/test/subscription/testcase/matviews.sh b/src/test/subscription/testcase/matviews.sh
new file mode 100644
index 000000000..c04e57758
--- /dev/null
+++ b/src/test/subscription/testcase/matviews.sh
@@ -0,0 +1,51 @@
+#!/bin/sh
+
+source $1/env_utils.sh $1 $2
+
+case_db="matviews_db"
+
+# Test materialized views behavior
+function test_1() {
+	echo "create database and tables."
+	exec_sql $db $pub_node1_port "CREATE DATABASE $case_db"
+	exec_sql $db $sub_node1_port "CREATE DATABASE $case_db"
+
+	exec_sql $case_db $pub_node1_port "CREATE TABLE test1 (a int PRIMARY KEY, b text)"
+	exec_sql $case_db $pub_node1_port "INSERT INTO test1 (a, b) VALUES (1, 'one'), (2, 'two')"
+	exec_sql $case_db $sub_node1_port "CREATE TABLE test1 (a int PRIMARY KEY, b text)"
+
+	# Setup logical replication
+	echo "create publication and subscription."
+	publisher_connstr="port=$pub_node1_port host=$g_local_ip dbname=$case_db user=$username password=$passwd"
+	exec_sql $case_db $pub_node1_port "CREATE PUBLICATION mypub FOR ALL TABLES;"
+	exec_sql $case_db $sub_node1_port "CREATE SUBSCRIPTION mysub CONNECTION '$publisher_connstr' PUBLICATION mypub"
+
+	# Wait for initial sync to finish
+	wait_for_subscription_sync $case_db $sub_node1_port "mysub"
+
+	# Materialized views are not supported by logical replication, but
+	# logical decoding does produce change information for them, so we
+	# need to make sure they are properly ignored.
+
+	# create a MV with some data
+	exec_sql $case_db $pub_node1_port "CREATE MATERIALIZED VIEW testmv1 AS SELECT * FROM test1;"
+	wait_for_catchup $case_db $pub_node1_port "mysub"
+
+	# There is no equivalent relation on the subscriber, but MV data is
+	# not replicated, so this does not hang.
+
+	echo "materialized view data not replicated";
+}
+
+function tear_down() {
+	exec_sql $case_db $sub_node1_port "DROP SUBSCRIPTION IF EXISTS mysub"
+	exec_sql $case_db $pub_node1_port "DROP PUBLICATION IF EXISTS mypub"
+
+	exec_sql $db $sub_node1_port "DROP DATABASE $case_db"
+	exec_sql $db $pub_node1_port "DROP DATABASE $case_db"
+
+	echo "tear down"
+}
+
+test_1
+tear_down
\ No newline at end of file