diff --git a/common/src/main/java/com/tencent/supersonic/common/jsqlparser/SqlReplaceHelper.java b/common/src/main/java/com/tencent/supersonic/common/jsqlparser/SqlReplaceHelper.java
index 1e5bd50c3..e4373485b 100644
--- a/common/src/main/java/com/tencent/supersonic/common/jsqlparser/SqlReplaceHelper.java
+++ b/common/src/main/java/com/tencent/supersonic/common/jsqlparser/SqlReplaceHelper.java
@@ -146,6 +146,10 @@ public class SqlReplaceHelper {
     public static String replaceFields(String sql, Map<String, String> fieldNameMap,
             boolean exactReplace) {
         Select selectStatement = SqlSelectHelper.getSelect(sql);
+        // alias field should not be replaced
+        Set<String> aliases = SqlSelectHelper.getAliasFields(sql);
+        aliases.forEach(alias -> fieldNameMap.put(alias, alias));
+
         Set<Select> plainSelectList = SqlSelectHelper.getAllSelect(selectStatement);
         for (Select plainSelect : plainSelectList) {
             if (plainSelect instanceof PlainSelect) {
diff --git a/headless/chat/src/test/java/com/tencent/supersonic/headless/chat/corrector/AggCorrectorTest.java b/headless/chat/src/test/java/com/tencent/supersonic/headless/chat/corrector/AggCorrectorTest.java
index e8f730c16..2f5328773 100644
--- a/headless/chat/src/test/java/com/tencent/supersonic/headless/chat/corrector/AggCorrectorTest.java
+++ b/headless/chat/src/test/java/com/tencent/supersonic/headless/chat/corrector/AggCorrectorTest.java
@@ -41,6 +41,27 @@ class AggCorrectorTest {
                 semanticParseInfo.getSqlInfo().getCorrectedS2SQL());
     }
 
+    @Test
+    void testSchemaCorrector() {
+        SchemaCorrector corrector = new SchemaCorrector();
+        Long dataSetId = 1L;
+        ChatQueryContext chatQueryContext = buildQueryContext(dataSetId);
+        SemanticParseInfo semanticParseInfo = new SemanticParseInfo();
+        SchemaElement dataSet = new SchemaElement();
+        dataSet.setDataSetId(dataSetId);
+        semanticParseInfo.setDataSet(dataSet);
+        SqlInfo sqlInfo = new SqlInfo();
+        String sql = "WITH 总停留时长 AS (SELECT 用户, SUM(停留时长) AS _总停留时长_ FROM 超音数数据集 WHERE 用户 IN ('alice', 'lucy') AND 数据日期 >= '2025-03-01' AND 数据日期 <= '2025-03-12' GROUP BY 用户) SELECT 用户, _总停留时长_ FROM 总停留时长";
+        sqlInfo.setParsedS2SQL(sql);
+        sqlInfo.setCorrectedS2SQL(sql);
+        semanticParseInfo.setSqlInfo(sqlInfo);
+        corrector.correct(chatQueryContext, semanticParseInfo);
+        Assert.assertEquals(
+                "WITH 总停留时长 AS (SELECT 用户名, SUM(停留时长) AS _总停留时长_ FROM 超音数数据集 WHERE 用户名 IN ('alice', 'lucy') AND 数据日期 " +
+                        ">= '2025-03-01' AND 数据日期 <= '2025-03-12' GROUP BY 用户名) SELECT 用户名, _总停留时长_ FROM 总停留时长",
+                semanticParseInfo.getSqlInfo().getCorrectedS2SQL());
+    }
+
     private ChatQueryContext buildQueryContext(Long dataSetId) {
         ChatQueryContext chatQueryContext = new ChatQueryContext();
         List<DataSetSchema> dataSetSchemaList = new ArrayList<>();
@@ -51,18 +72,30 @@ class AggCorrectorTest {
         schemaElement.setDataSetId(dataSetId);
         dataSetSchema.setDataSet(schemaElement);
         Set<SchemaElement> dimensions = new HashSet<>();
-        SchemaElement element1 = new SchemaElement();
-        element1.setDataSetId(1L);
-        element1.setName("部门");
-        dimensions.add(element1);
+
+        dimensions.add(SchemaElement.builder()
+                .dataSetId(1L)
+                .name("部门")
+                .build());
+
+        dimensions.add(SchemaElement.builder()
+                        .dataSetId(1L)
+                        .name("用户名")
+                        .build());
 
         dataSetSchema.setDimensions(dimensions);
 
         Set<SchemaElement> metrics = new HashSet<>();
-        SchemaElement metric1 = new SchemaElement();
-        metric1.setDataSetId(1L);
-        metric1.setName("访问次数");
-        metrics.add(metric1);
+
+        metrics.add(SchemaElement.builder()
+                .dataSetId(1L)
+                .name("访问次数")
+                .build());
+
+        metrics.add(SchemaElement.builder()
+                .dataSetId(1L)
+                .name("停留时长")
+                .build());
 
         dataSetSchema.setMetrics(metrics);
         dataSetSchemaList.add(dataSetSchema);
diff --git a/launchers/standalone/src/main/java/com/tencent/supersonic/demo/S2VisitsDemo.java b/launchers/standalone/src/main/java/com/tencent/supersonic/demo/S2VisitsDemo.java
index b858a51be..37ea8ec1c 100644
--- a/launchers/standalone/src/main/java/com/tencent/supersonic/demo/S2VisitsDemo.java
+++ b/launchers/standalone/src/main/java/com/tencent/supersonic/demo/S2VisitsDemo.java
@@ -333,7 +333,6 @@ public class S2VisitsDemo extends S2BaseDemo {
         metricReq.setSensitiveLevel(SensitiveLevelEnum.HIGH.getCode());
         metricReq.setDescription("每个用户平均访问的次数");
         metricReq.setClassifications(Collections.singletonList("核心指标"));
-        metricReq.setAlias("平均访问次数");
         MetricDefineByMetricParams metricTypeParams = new MetricDefineByMetricParams();
         metricTypeParams.setExpr("pv/uv");
         List<MetricParam> metrics = new ArrayList<>();
diff --git a/launchers/standalone/src/test/java/com/tencent/supersonic/evaluation/Text2SQLEval.java b/launchers/standalone/src/test/java/com/tencent/supersonic/evaluation/Text2SQLEval.java
index 028f269cf..b93158dde 100644
--- a/launchers/standalone/src/test/java/com/tencent/supersonic/evaluation/Text2SQLEval.java
+++ b/launchers/standalone/src/test/java/com/tencent/supersonic/evaluation/Text2SQLEval.java
@@ -155,16 +155,6 @@ public class Text2SQLEval extends BaseTest {
         assert result.getTextResult().contains("3");
     }
 
-    @Test
-    public void test_detail_query() throws Exception {
-        long start = System.currentTimeMillis();
-        QueryResult result = submitNewChat("特斯拉旗下有哪些品牌", agent.getId());
-        durations.add(System.currentTimeMillis() - start);
-        assert result.getQueryColumns().size() >= 1;
-        assert result.getTextResult().contains("Model Y");
-        assert result.getTextResult().contains("Model 3");
-    }
-
     public Agent getLLMAgent() {
         Agent agent = new Agent();
         agent.setName("Agent for Test");