fix: [Bug]doris数据源，sql数据集中使用参数时，sql中含有两行空行时执行报错 #7750

core/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java

@@ -1053,7 +1053,7 @@ public class DataSetTableService {
     }
 
     public String removeVariables(final String sql, String dsType) throws Exception {
-        String tmpSql = sql;
+        String tmpSql = sql.replaceAll("(?m)^\\s*$[\n\r]{0,}", "");
         Pattern pattern = Pattern.compile(regex);
         Matcher matcher = pattern.matcher(tmpSql);
         boolean hasVariables = false;