fix: resolve valgrind memory issues

source/dnode/vnode/src/meta/metaQuery.c

@@ -439,6 +439,7 @@ int32_t metaGetTbTSchemaEx(SMeta *pMeta, tb_uid_t suid, tb_uid_t uid, int32_t sv
   tDecoderInit(&dc, pData, nData);
   tDecodeSSchemaWrapper(&dc, pSchemaWrapper);
   tDecoderClear(&dc);
+  tdbFree(pData);
 
   // convert
   STSchemaBuilder sb = {0};

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

@@ -105,7 +105,7 @@ int32_t tsdbInsertTableData(STsdb *pTsdb, int64_t version, SSubmitMsgIter *pMsgI
 
   // check if table exists (todo: refact)
   SMetaReader mr = {0};
-  SMetaEntry  me = {0};
+  // SMetaEntry  me = {0};
   metaReaderInit(&mr, pTsdb->pVnode->pMeta, 0);
   if (metaGetTableEntryByUid(&mr, pMsgIter->uid) < 0) {
     metaReaderClear(&mr);
@@ -117,6 +117,8 @@ int32_t tsdbInsertTableData(STsdb *pTsdb, int64_t version, SSubmitMsgIter *pMsgI
   if (mr.me.type == TSDB_NORMAL_TABLE) {
     sverNew = mr.me.ntbEntry.schemaRow.version;
   } else {
+    tDecoderClear(&mr.coder);
+
     metaGetTableEntryByUid(&mr, mr.me.ctbEntry.suid);
     sverNew = mr.me.stbEntry.schemaRow.version;
   }