Merge pull request #22527 from taosdata/fix/TD-25902

fix: alter stt_trigger bug

source/dnode/vnode/src/tsdb/tsdbCommit2.c

@@ -235,12 +235,8 @@ static int32_t tsdbCommitOpenReader(SCommitter2 *committer) {
     return 0;
   }
 
-  ASSERT(TARRAY2_SIZE(committer->ctx->fset->lvlArr) == 1);
-
-  SSttLvl *lvl = TARRAY2_FIRST(committer->ctx->fset->lvlArr);
-
-  ASSERT(lvl->level == 0);
-
+  SSttLvl *lvl;
+  TARRAY2_FOREACH(committer->ctx->fset->lvlArr, lvl) {
     STFileObj *fobj = NULL;
     TARRAY2_FOREACH(lvl->fobjArr, fobj) {
       SSttFileReader *sttReader;
@@ -266,6 +262,7 @@ static int32_t tsdbCommitOpenReader(SCommitter2 *committer) {
       code = TARRAY2_APPEND(committer->fopArray, op);
       TSDB_CHECK_CODE(code, lino, _exit);
     }
+  }
 
 _exit:
   if (code) {