diff --git a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/knowledge/SearchService.java b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/knowledge/SearchService.java
index b029650c3..abb61c923 100644
--- a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/knowledge/SearchService.java
+++ b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/knowledge/SearchService.java
@@ -58,9 +58,8 @@ public class SearchService {
             return new HanlpMapResult(name, entry.getValue(), key, similarity);
         }).sorted((a, b) -> -(b.getName().length() - a.getName().length()))
                 .collect(Collectors.toList());
-        hanlpMapResults = transformAndFilterByDataSet(hanlpMapResults, modelIdToDataSetIds,
-                detectDataSetIds, limit);
-        return hanlpMapResults;
+        return transformAndFilterByDataSet(hanlpMapResults, modelIdToDataSetIds, detectDataSetIds,
+                limit);
     }
 
     /**
@@ -71,15 +70,14 @@ public class SearchService {
      */
     public static List<HanlpMapResult> suffixSearch(String key, int limit,
             Map<Long, List<Long>> modelIdToDataSetIds, Set<Long> detectDataSetIds) {
-        String reverseDetectSegment = StringUtils.reverse(key);
-        return suffixSearch(reverseDetectSegment, limit, suffixTrie, modelIdToDataSetIds,
-                detectDataSetIds);
+        return suffixSearch(key, limit, suffixTrie, modelIdToDataSetIds, detectDataSetIds);
     }
 
     public static List<HanlpMapResult> suffixSearch(String key, int limit,
             BinTrie<List<String>> binTrie, Map<Long, List<Long>> modelIdToDataSetIds,
             Set<Long> detectDataSetIds) {
-        Set<Map.Entry<String, List<String>>> result = search(key, binTrie);
+        String reverseDetectSegment = StringUtils.reverse(key);
+        Set<Map.Entry<String, List<String>>> result = search(reverseDetectSegment, binTrie);
         List<HanlpMapResult> hanlpMapResults = result.stream().map(entry -> {
             String name = entry.getKey().replace("#", " ");
             List<String> natures = entry.getValue().stream()
diff --git a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/MapFilter.java b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/MapFilter.java
index cf388622a..dc02fbccf 100644
--- a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/MapFilter.java
+++ b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/MapFilter.java
@@ -77,9 +77,9 @@ public class MapFilter {
         for (Map.Entry<Long, List<SchemaElementMatch>> entry : dataSetElementMatches.entrySet()) {
             List<SchemaElementMatch> value = entry.getValue();
             if (!CollectionUtils.isEmpty(value)) {
-                value.removeIf(schemaElementMatch -> StringUtils
-                        .length(schemaElementMatch.getDetectWord()) <= 2
-                        && schemaElementMatch.getSimilarity() < 1);
+                value.removeIf(
+                        schemaElementMatch -> StringUtils.length(schemaElementMatch.getWord()) <= 2
+                                && schemaElementMatch.getSimilarity() < 1);
             }
         }
     }
diff --git a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/MapperConfig.java b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/MapperConfig.java
index bbcaecdb8..acf007bca 100644
--- a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/MapperConfig.java
+++ b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/MapperConfig.java
@@ -15,7 +15,7 @@ public class MapperConfig extends ParameterConfig {
                     "number", "Mapper相关配置");
 
     public static final Parameter MAPPER_NAME_THRESHOLD =
-            new Parameter("s2.mapper.name.threshold", "0.5", "指标名、维度名文本相似度阈值",
+            new Parameter("s2.mapper.name.threshold", "0.3", "指标名、维度名文本相似度阈值",
                     "文本片段和匹配到的指标、维度名计算出来的编辑距离阈值, 若超出该阈值, 则舍弃", "number", "Mapper相关配置");
 
     public static final Parameter MAPPER_NAME_THRESHOLD_MIN =
diff --git a/launchers/standalone/src/main/resources/config.update/sql-update.sql b/launchers/standalone/src/main/resources/config.update/sql-update.sql
index 47555be9d..0cefd0fb6 100644
--- a/launchers/standalone/src/main/resources/config.update/sql-update.sql
+++ b/launchers/standalone/src/main/resources/config.update/sql-update.sql
@@ -385,13 +385,12 @@ CREATE TABLE IF NOT EXISTS `s2_chat_model` (
    `viewer` varchar(500) DEFAULT NULL,
    PRIMARY KEY (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='对话大模型实例表';
-ALTER TABLE s2_agent RENAME COLUMN config TO tool_config;
-ALTER TABLE s2_agent RENAME COLUMN model_config TO chat_model_config;
-
+ALTER TABLE s2_agent CHANGE COLUMN config tool_config text;
+ALTER TABLE s2_agent CHANGE COLUMN model_config chat_model_config text;
 --20241011
-ALTER TABLE s2_agent DROP COLUMN IF EXISTS `prompt_config`;
-ALTER TABLE s2_agent DROP COLUMN IF EXISTS `multi_turn_config`;
-ALTER TABLE s2_agent DROP COLUMN IF EXISTS `enable_memory_review`;
+ALTER TABLE s2_agent DROP COLUMN  `prompt_config`;
+ALTER TABLE s2_agent DROP COLUMN  `multi_turn_config`;
+ALTER TABLE s2_agent DROP COLUMN  `enable_memory_review`;
 
 --20241012
 alter table s2_agent add column `enable_feedback` tinyint DEFAULT 1;
\ No newline at end of file
diff --git a/launchers/standalone/src/main/resources/s2-config.yaml b/launchers/standalone/src/main/resources/s2-config.yaml
index 6bdcb4594..6a0e8fee1 100644
--- a/launchers/standalone/src/main/resources/s2-config.yaml
+++ b/launchers/standalone/src/main/resources/s2-config.yaml
@@ -31,4 +31,14 @@ s2:
     token:
       http:
         header:
-          key: Authorization
\ No newline at end of file
+          key: Authorization
+
+  mapper:
+    name:
+      threshold: 0.30
+      min:
+        threshold:value: 0.25
+    value:
+      threshold: 0.5
+      min:
+        threshold: 0.3
\ No newline at end of file