diff --git a/chat2db-community-server/chat2db-community-plugins/chat2db-community-kingbase/src/main/java/ai/chat2db/plugin/kingbase/enums/type/KingBaseIndexTypeEnum.java b/chat2db-community-server/chat2db-community-plugins/chat2db-community-kingbase/src/main/java/ai/chat2db/plugin/kingbase/enums/type/KingBaseIndexTypeEnum.java
index df1080bc8a..4883ba1832 100644
--- a/chat2db-community-server/chat2db-community-plugins/chat2db-community-kingbase/src/main/java/ai/chat2db/plugin/kingbase/enums/type/KingBaseIndexTypeEnum.java
+++ b/chat2db-community-server/chat2db-community-plugins/chat2db-community-kingbase/src/main/java/ai/chat2db/plugin/kingbase/enums/type/KingBaseIndexTypeEnum.java
@@ -92,10 +92,10 @@ private String buildForeignColum(TableIndex tableIndex) {
             StringBuilder script = new StringBuilder();
             script.append(" REFERENCES ");
             if (StringUtils.isNotBlank(tableIndex.getForeignSchemaName())) {
-                script.append(tableIndex.getForeignSchemaName()).append(".");
+                script.append("\"").append(tableIndex.getForeignSchemaName()).append("\".");
             }
             if (StringUtils.isNotBlank(tableIndex.getForeignTableName())) {
-                script.append(tableIndex.getForeignTableName()).append(" ");
+                script.append("\"").append(tableIndex.getForeignTableName()).append("\" ");
             }
             if (CollectionUtils.isNotEmpty(tableIndex.getForeignColumnNamelist())) {
                 script.append("(");
diff --git a/chat2db-community-server/chat2db-community-plugins/chat2db-community-postgresql/src/main/java/ai/chat2db/plugin/postgresql/enums/type/PostgreSQLIndexTypeEnum.java b/chat2db-community-server/chat2db-community-plugins/chat2db-community-postgresql/src/main/java/ai/chat2db/plugin/postgresql/enums/type/PostgreSQLIndexTypeEnum.java
index e4ecc099fa..3e36f0706d 100644
--- a/chat2db-community-server/chat2db-community-plugins/chat2db-community-postgresql/src/main/java/ai/chat2db/plugin/postgresql/enums/type/PostgreSQLIndexTypeEnum.java
+++ b/chat2db-community-server/chat2db-community-plugins/chat2db-community-postgresql/src/main/java/ai/chat2db/plugin/postgresql/enums/type/PostgreSQLIndexTypeEnum.java
@@ -92,10 +92,10 @@ private String buildForeignColum(TableIndex tableIndex) {
             StringBuilder script = new StringBuilder();
             script.append(" REFERENCES ");
             if (StringUtils.isNotBlank(tableIndex.getForeignSchemaName())) {
-                script.append(tableIndex.getForeignSchemaName()).append(".");
+                script.append("\"").append(tableIndex.getForeignSchemaName()).append("\".");
             }
             if (StringUtils.isNotBlank(tableIndex.getForeignTableName())) {
-                script.append(tableIndex.getForeignTableName()).append(" ");
+                script.append("\"").append(tableIndex.getForeignTableName()).append("\" ");
             }
             if (CollectionUtils.isNotEmpty(tableIndex.getForeignColumnNamelist())) {
                 script.append("(");