diff --git a/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java b/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java
index dfa03a002c..e904ea5769 100644
--- a/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java
+++ b/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java
@@ -281,7 +281,7 @@ public class DataSetTableService {
         DatasourceRequest datasourceRequest = new DatasourceRequest();
         datasourceRequest.setDatasource(dorisDatasource);
         DDLProvider ddlProvider = ProviderFactory.getDDLProvider(dorisDatasource.getType());
-        if (StringUtils.equalsIgnoreCase("custom", table.getType())) {
+        if (StringUtils.equalsIgnoreCase("custom", table.getType()) || StringUtils.equalsIgnoreCase("union", table.getType())) {
             datasourceRequest.setQuery(ddlProvider.dropView(dorisTableName));
             jdbcProvider.exec(datasourceRequest);
             datasourceRequest.setQuery(ddlProvider.dropView(DorisTableUtils.dorisTmpName(dorisTableName)));
@@ -1070,7 +1070,7 @@ public class DataSetTableService {
     private Map<String, Object> getUnionSQLDoris(DataTableInfoDTO dataTableInfoDTO) {
         List<UnionDTO> union = dataTableInfoDTO.getUnion();
         // 所有选中的字段，即select后的查询字段
-        Map<String, String[]> checkedInfo = new TreeMap<>();
+        Map<String, String[]> checkedInfo = new LinkedHashMap<>();
         List<UnionParamDTO> unionList = new ArrayList<>();
         List<DatasetTableField> checkedFields = new ArrayList<>();
         String sql = "";
@@ -1183,7 +1183,7 @@ public class DataSetTableService {
 
         List<UnionDTO> union = dataTableInfoDTO.getUnion();
         // 所有选中的字段，即select后的查询字段
-        Map<String, String[]> checkedInfo = new TreeMap<>();
+        Map<String, String[]> checkedInfo = new LinkedHashMap<>();
         List<UnionParamDTO> unionList = new ArrayList<>();
         List<DatasetTableField> checkedFields = new ArrayList<>();
         String sql = "";
@@ -1272,12 +1272,12 @@ public class DataSetTableService {
             UnionDTO unionDTO = childrenDs.get(i);
 
             DatasetTable datasetTable = datasetTableMapper.selectByPrimaryKey(unionDTO.getCurrentDs().getId());
-            String table = new Gson().fromJson(datasetTable.getInfo(), DataTableInfoDTO.class).getTable();
             String tableId = unionDTO.getCurrentDs().getId();
-
             if (ObjectUtils.isEmpty(datasetTable)) {
                 DEException.throwException(Translator.get("i18n_custom_ds_delete") + String.format(":table id [%s]", tableId));
             }
+            String table = new Gson().fromJson(datasetTable.getInfo(), DataTableInfoDTO.class).getTable();
+
             List<DatasetTableField> fields = dataSetTableFieldsService.getListByIdsEach(unionDTO.getCurrentDsField());
             if (CollectionUtils.isEmpty(fields)) {
                 DEException.throwException(Translator.get("i18n_cst_ds_tb_or_field_deleted") + String.format(":table id [%s]", tableId));
@@ -1473,7 +1473,11 @@ public class DataSetTableService {
                     datasetTableField.setTableId(datasetTable.getId());
                     datasetTableField.setOriginName(filed.getFieldName());
                     datasetTableField.setName(filed.getRemarks());
-                    datasetTableField.setDataeaseName(DorisTableUtils.columnName(filed.getFieldName()));
+                    if (datasetTable.getMode() == 1 && StringUtils.equalsIgnoreCase("union", datasetTable.getType())) {
+                        datasetTableField.setDataeaseName(filed.getFieldName());
+                    } else {
+                        datasetTableField.setDataeaseName(DorisTableUtils.columnName(filed.getFieldName()));
+                    }
                     datasetTableField.setType(filed.getFieldType());
                     if (ObjectUtils.isEmpty(ds)) {
                         datasetTableField.setDeType(transFieldType(filed.getFieldType()));
diff --git a/frontend/src/views/dataset/add/union/UnionEdit.vue b/frontend/src/views/dataset/add/union/UnionEdit.vue
index 486a70d80c..321b2117c2 100644
--- a/frontend/src/views/dataset/add/union/UnionEdit.vue
+++ b/frontend/src/views/dataset/add/union/UnionEdit.vue
@@ -2,11 +2,11 @@
   <div v-if="unionParam.type" style="height:600px;">
     <div class="field-style">
       <div class="fields">
-        <p>{{ unionParam.parent.currentDs.name }}</p>
+        <p :title="unionParam.parent.currentDs.name">{{ unionParam.parent.currentDs.name }}</p>
         <union-field-list :field-list="parentField" :node="unionParam.parent" @checkedFields="changeParentFields" />
       </div>
       <div class="fields">
-        <p>{{ unionParam.node.currentDs.name }}</p>
+        <p :title="unionParam.parent.currentDs.name">{{ unionParam.node.currentDs.name }}</p>
         <union-field-list :field-list="nodeField" :node="unionParam.node" @checkedFields="changeNodeFields" />
       </div>
     </div>
@@ -81,6 +81,9 @@ export default {
 p{
   font-size: 14px;
   margin: 6px 0!important;
+  text-overflow: ellipsis;
+  overflow: hidden;
+  white-space: nowrap;
 }
 .el-divider--horizontal {
   margin: 12px 0;