fix(db): 修复Kingbase MySQL模式下V2验收脚本兼容性

RuoYi-Vue/sql/train/v2/010_verify.sql

@@ -66,7 +66,7 @@ BEGIN
         LEFT JOIN expected_tables e ON a.table_name = e.table_name
         WHERE e.table_name IS NULL
     ) LOOP
-        v_diff_text := v_diff_text || r.diff_type || ':' || r.table_name || '; ';
+        v_diff_text := concat(v_diff_text, r.diff_type, ':', r.table_name, '; ');
     END LOOP;
 
     IF v_diff_text <> '' THEN
@@ -114,7 +114,7 @@ BEGIN
             'train_student_portrait'
         ]) AS tbl
     ) LOOP
-        EXECUTE 'SELECT count(*) FROM ' || r.tbl INTO v_cnt;
+        EXECUTE format('SELECT count(*) FROM public.%I', r.tbl) INTO v_cnt;
         IF v_cnt <> 0 THEN
             RAISE EXCEPTION '>>> [Verify-FATAL] 表 % 包含非预期数据，当前行数为 % (期望 0 行)', r.tbl, v_cnt;
         END IF;
@@ -170,7 +170,7 @@ BEGIN
            AND a.column_list = e.column_list
         WHERE e.table_name IS NULL
     ) LOOP
-        v_diff_text := v_diff_text || r.diff_type || ': ' || r.table_name || '.' || r.constraint_name || '(' || r.column_list || '); ';
+        v_diff_text := concat(v_diff_text, r.diff_type, ': ', r.table_name, '.', r.constraint_name, '(', r.column_list, '); ');
     END LOOP;
 
     IF v_diff_text <> '' THEN
@@ -251,7 +251,7 @@ BEGIN
            AND a.foreign_column_name = e.foreign_column_name
         WHERE e.table_name IS NULL
     ) LOOP
-        v_diff_text := v_diff_text || r.diff_type || ': ' || r.table_name || '.' || r.constraint_name || '; ';
+        v_diff_text := concat(v_diff_text, r.diff_type, ': ', r.table_name, '.', r.constraint_name, '; ');
     END LOOP;
 
     IF v_diff_text <> '' THEN
@@ -368,7 +368,7 @@ BEGIN
             ON a.table_name = e.table_name AND a.column_name = e.column_name
         WHERE e.table_name IS NULL
     ) LOOP
-        v_diff_text := v_diff_text || r.diff_type || ': ' || r.table_name || '.' || r.column_name || '; ';
+        v_diff_text := concat(v_diff_text, r.diff_type, ': ', r.table_name, '.', r.column_name, '; ');
     END LOOP;
 
     IF v_diff_text <> '' THEN