[td-225]disable alter wal level after create databases.

src/client/src/tscSQLParser.c

@@ -7809,19 +7809,37 @@ static STableMeta* extractTempTableMetaFromSubquery(SQueryInfo* pUpstream) {
   meta->tableType = TSDB_TEMP_TABLE;
 
   STableComInfo *info = &meta->tableInfo;
-  info->numOfColumns = numOfColumns;
+
+  // todo : row size, numOfTags, numOfCols, tag info
+//  info->numOfColumns = numOfColumns;
   info->precision    = pUpstreamTableMetaInfo->pTableMeta->tableInfo.precision;
-  info->numOfTags    = 0;
+//  info->numOfTags    = 0;
 
   int32_t n = 0;
   for(int32_t i = 0; i < numOfColumns; ++i) {
     SInternalField* pField = tscFieldInfoGetInternalField(&pUpstream->fieldsInfo, i);
-    if (pField->visible) {
-      meta->schema[n].bytes = pField->field.bytes;
-      meta->schema[n].type  = pField->field.type;
-      meta->schema[n].colId = pField->pExpr->base.resColId;
-      tstrncpy(meta->schema[n].name, pField->pExpr->base.aliasName, TSDB_COL_NAME_LEN);
-      n += 1;
+    if (!pField->visible) {
+      continue;
+    }
+
+    meta->schema[n].bytes = pField->field.bytes;
+    meta->schema[n].type  = pField->field.type;
+
+    SExprInfo* pExpr = pField->pExpr;
+    meta->schema[n].colId = pExpr->base.resColId;
+    tstrncpy(meta->schema[n].name, pField->pExpr->base.aliasName, TSDB_COL_NAME_LEN);
+    info->rowSize += meta->schema[n].bytes;
+
+    n += 1;
+
+    if (pExpr->pExpr != NULL) {
+      info->numOfColumns += 1;
+    } else {
+      if (TSDB_COL_IS_TAG(pExpr->base.colInfo.flag)) {
+        info->numOfTags += 1;
+      } else {
+        info->numOfColumns += 1;
+      }
     }
   }