[fix][headless]Fix a set of known issues.

headless/chat/src/main/java/com/tencent/supersonic/headless/chat/parser/llm/PromptHelper.java

@@ -114,7 +114,7 @@ public class PromptHelper {
             dimensionStr.append(dimension.getName());
             if (!CollectionUtils.isEmpty(dimension.getAlias())) {
                 StringBuilder alias = new StringBuilder();
-                dimension.getAlias().stream().forEach(a -> alias.append(a + ","));
+                dimension.getAlias().stream().forEach(a -> alias.append(a + ";"));
                 dimensionStr.append(" ALIAS '" + alias + "'");
             }
             if (StringUtils.isNotEmpty(dimension.getTimeFormat())) {

headless/core/src/main/java/com/tencent/supersonic/headless/core/executor/JdbcExecutor.java

@@ -45,7 +45,7 @@ public class JdbcExecutor implements QueryExecutor {
             sqlUtil.queryInternal(queryStatement.getSql(), queryResultWithColumns);
             queryResultWithColumns.setSql(sql);
         } catch (Exception e) {
-            log.error("queryInternal error [{}]", StringUtils.normalizeSpace(e.toString()));
+            log.error("queryInternal with error [{}]", StringUtils.normalizeSpace(e.getMessage()));
             queryResultWithColumns.setErrorMsg(e.getMessage());
         }
         return queryResultWithColumns;

headless/core/src/main/java/com/tencent/supersonic/headless/core/translator/parser/SqlQueryParser.java

@@ -45,6 +45,8 @@ public class SqlQueryParser implements QueryParser {
         // build ontologyQuery
         SqlQuery sqlQuery = queryStatement.getSqlQuery();
         List<String> queryFields = SqlSelectHelper.getAllSelectFields(sqlQuery.getSql());
+        Set<String> queryAliases = SqlSelectHelper.getAliasFields(sqlQuery.getSql());
+        queryFields.removeAll(queryAliases);
         Ontology ontology = queryStatement.getOntology();
         OntologyQuery ontologyQuery = buildOntologyQuery(ontology, queryFields);
         // check if there are fields not matched with any metric or dimension