enh: optimize the error code when create and delete a database in a dropping state

source/client/src/clientMsgHandler.c

@@ -175,7 +175,8 @@ int32_t processCreateDbRsp(void* param, SDataBuf* pMsg, int32_t code) {
 int32_t processUseDbRsp(void* param, SDataBuf* pMsg, int32_t code) {
   SRequestObj* pRequest = param;
 
-  if (TSDB_CODE_MND_DB_NOT_EXIST == code) {
+  if (TSDB_CODE_MND_DB_NOT_EXIST == code || TSDB_CODE_MND_DB_IN_CREATING == code ||
+      TSDB_CODE_MND_DB_IN_DROPPING == code) {
     SUseDbRsp usedbRsp = {0};
     tDeserializeSUseDbRsp(pMsg->pData, pMsg->len, &usedbRsp);
     struct SCatalog* pCatalog = NULL;

source/libs/catalog/inc/catalogInt.h

@@ -538,7 +538,8 @@ typedef struct SCtgOperation {
   (sizeof(STableMeta) + ((pMeta)->tableInfo.numOfTags + (pMeta)->tableInfo.numOfColumns) * sizeof(SSchema))
 
 #define CTG_TABLE_NOT_EXIST(code) (code == CTG_ERR_CODE_TABLE_NOT_EXIST)
-#define CTG_DB_NOT_EXIST(code)    (code == TSDB_CODE_MND_DB_NOT_EXIST)
+#define CTG_DB_NOT_EXIST(code) \
+  (code == TSDB_CODE_MND_DB_NOT_EXIST || code == TSDB_CODE_MND_DB_IN_CREATING || code == TSDB_CODE_MND_DB_IN_DROPPING)
 
 #define ctgFatal(param, ...) qFatal("CTG:%p " param, pCtg, __VA_ARGS__)
 #define ctgError(param, ...) qError("CTG:%p " param, pCtg, __VA_ARGS__)

source/libs/parser/src/parTranslater.c

@@ -2181,7 +2181,8 @@ static int32_t getTagsTableVgroupListImpl(STranslateContext* pCxt, SName* pTarge
 
   if (TSDB_DB_NAME_T == pTargetName->type) {
     int32_t code = getDBVgInfoImpl(pCxt, pTargetName, pVgroupList);
-    if (TSDB_CODE_MND_DB_NOT_EXIST == code) {
+    if (TSDB_CODE_MND_DB_NOT_EXIST == code || TSDB_CODE_MND_DB_IN_CREATING == code ||
+        TSDB_CODE_MND_DB_IN_DROPPING == code) {
       code = TSDB_CODE_SUCCESS;
     }
     return code;
@@ -2196,7 +2197,8 @@ static int32_t getTagsTableVgroupListImpl(STranslateContext* pCxt, SName* pTarge
     } else {
       taosArrayPush(*pVgroupList, &vgInfo);
     }
-  } else if (TSDB_CODE_MND_DB_NOT_EXIST == code) {
+  } else if (TSDB_CODE_MND_DB_NOT_EXIST == code || TSDB_CODE_MND_DB_IN_CREATING == code ||
+             TSDB_CODE_MND_DB_IN_DROPPING == code) {
     code = TSDB_CODE_SUCCESS;
   }
   return code;