diff --git a/src/cmd/openmldb.cc b/src/cmd/openmldb.cc
index de9c11aeb0e..de5154d6856 100644
--- a/src/cmd/openmldb.cc
+++ b/src/cmd/openmldb.cc
@@ -3355,109 +3355,8 @@ void HandleClientChangeRole(const std::vector<std::string> parts, ::openmldb::cl
 }
 
 void HandleClientPreview(const std::vector<std::string>& parts, ::openmldb::client::TabletClient* client) {
-    if (parts.size() < 3) {
-        std::cout << "preview format error. eg: preview tid pid [limit]" << std::endl;
-        return;
-    }
-    uint32_t limit = FLAGS_preview_default_limit;
-    uint32_t tid = 0;
-    if (auto ret = std::from_chars(parts[1].data(), parts[1].data() + parts[1].size(), tid); ret.ec != std::errc()) {
-        std::cout << "Invalid args, tid should be uint32_t" << std::endl;
-        return;
-    }
-    uint32_t pid = 0;
-    if (auto ret = std::from_chars(parts[2].data(), parts[2].data() + parts[2].size(), pid); ret.ec != std::errc()) {
-        std::cout << "Invalid args, pid should be uint32_t" << std::endl;
-        return;
-    }
-    if (parts.size() > 3) {
-        if (auto ret = std::from_chars(parts[3].data(), parts[3].data() + parts[3].size(), limit);
-            ret.ec != std::errc()) {
-            std::cout << "Invalid args, limit should be uint32_t" << std::endl;
-            return;
-        }
-        if (limit > FLAGS_preview_limit_max_num) {
-            printf("preview error. limit is greater than the max num %u\n", FLAGS_preview_limit_max_num);
-            return;
-        } else if (limit == 0) {
-            printf("preview error. limit must be greater than zero\n");
-            return;
-        }
-    }
-    ::openmldb::api::TableStatus table_status;
-    if (auto st = client->GetTableStatus(tid, pid, true, table_status); !st.OK()) {
-        std::cout << "Fail to get table status, error msg: " << st.GetMsg() << std::endl;
-        return;
-    }
-    /*std::string schema = table_status.schema();
-    std::vector<::openmldb::codec::ColumnDesc> columns;
-    if (!schema.empty()) {
-        ::openmldb::codec::SchemaCodec codec;
-        codec.Decode(schema, columns);
-    }
-    uint32_t column_num = columns.empty() ? 4 : columns.size() + 2;
-    ::baidu::common::TPrinter tp(column_num, FLAGS_max_col_display_length);
-    std::vector<std::string> row;
-    if (schema.empty()) {
-        row.push_back("#");
-        row.push_back("key");
-        row.push_back("ts");
-        row.push_back("data");
-    } else {
-        row.push_back("#");
-        row.push_back("ts");
-        for (uint32_t i = 0; i < columns.size(); i++) {
-            row.push_back(columns[i].name);
-        }
-    }
-    tp.AddRow(row);
-    uint32_t index = 1;
-    uint32_t count = 0;
-    ::openmldb::base::KvIterator* it =
-        client->Traverse(tid, pid, "", "", 0, limit, count);
-    if (it == NULL) {
-        std::cout << "Fail to preview table" << std::endl;
-        return;
-    }
-    while (it->Valid()) {
-        row.clear();
-        row.push_back(std::to_string(index));
-        if (schema.empty()) {
-            std::string value = it->GetValue().ToString();
-            if (table_status.compress_type() ==
-                ::openmldb::type::CompressType::kSnappy) {
-                std::string uncompressed;
-                ::snappy::Uncompress(value.c_str(), value.length(),
-                                     &uncompressed);
-                value = uncompressed;
-            }
-            row.push_back(it->GetPK());
-            row.push_back(std::to_string(it->GetKey()));
-            row.push_back(value);
-        } else {
-            row.push_back(std::to_string(it->GetKey()));
-            ::openmldb::api::TableMeta table_meta;
-            bool ok = client->GetTableSchema(tid, pid, table_meta);
-            if (!ok) {
-                std::cout << "No schema for table, please use command scan"
-                          << std::endl;
-                delete it;
-                return;
-            }
-            std::string value;
-            if (table_meta.compress_type() == ::openmldb::type::CompressType::kSnappy) {
-                ::snappy::Uncompress(it->GetValue().data(),
-                                     it->GetValue().size(), &value);
-            } else {
-                value.assign(it->GetValue().data(), it->GetValue().size());
-            }
-        }
-        tp.AddRow(row);
-        index++;
-        it->Next();
-    }
-    delete it;
-    tp.Print(true);*/
+    std::cout << "unsupport preview" << std::endl;
+    return;
 }
 
 void HandleClientGetFollower(const std::vector<std::string>& parts, ::openmldb::client::TabletClient* client) {