enh: make the error codes of 2.0 and 3.0 error as same

source/client/src/clientSml.c

@@ -499,7 +499,7 @@ static int32_t smlModifyDBSchemas(SSmlHandle *info) {
 
     code = catalogGetSTableMeta(info->pCatalog, &conn, &pName, &pTableMeta);
 
-    if (code == TSDB_CODE_PAR_TABLE_NOT_EXIST || code == TSDB_CODE_MND_INVALID_STB) {
+    if (code == TSDB_CODE_PAR_TABLE_NOT_EXIST || code == TSDB_CODE_MND_STB_NOT_EXIST) {
       SSchemaAction schemaAction;
       schemaAction.action = SCHEMA_ACTION_CREATE_STABLE;
       memset(&schemaAction.createSTable, 0, sizeof(SCreateSTableActionInfo));

source/dnode/mnode/impl/src/mndInfoSchema.c

@@ -66,7 +66,7 @@ static int32_t mndInsInitMeta(SHashObj *hash) {
 
 int32_t mndBuildInsTableSchema(SMnode *pMnode, const char *dbFName, const char *tbName, STableMetaRsp *pRsp) {
   if (NULL == pMnode->infosMeta) {
-    terrno = TSDB_CODE_MND_NOT_READY;
+    terrno = TSDB_CODE_APP_NOT_READY;
     return -1;
   }
 
@@ -92,7 +92,7 @@ int32_t mndBuildInsTableSchema(SMnode *pMnode, const char *dbFName, const char *
 
 int32_t mndBuildInsTableCfg(SMnode *pMnode, const char *dbFName, const char *tbName, STableCfgRsp *pRsp) {
   if (NULL == pMnode->infosMeta) {
-    terrno = TSDB_CODE_MND_NOT_READY;
+    terrno = TSDB_CODE_APP_NOT_READY;
     return -1;
   }
 

source/dnode/mnode/impl/src/mndPerfSchema.c

@@ -68,7 +68,7 @@ int32_t mndPerfsInitMeta(SHashObj *hash) {
 
 int32_t mndBuildPerfsTableSchema(SMnode *pMnode, const char *dbFName, const char *tbName, STableMetaRsp *pRsp) {
   if (NULL == pMnode->perfsMeta) {
-    terrno = TSDB_CODE_MND_NOT_READY;
+    terrno = TSDB_CODE_APP_NOT_READY;
     return -1;
   }
 
@@ -94,7 +94,7 @@ int32_t mndBuildPerfsTableSchema(SMnode *pMnode, const char *dbFName, const char
 
 int32_t mndBuildPerfsTableCfg(SMnode *pMnode, const char *dbFName, const char *tbName, STableCfgRsp *pRsp) {
   if (NULL == pMnode->perfsMeta) {
-    terrno = TSDB_CODE_MND_NOT_READY;
+    terrno = TSDB_CODE_APP_NOT_READY;
     return -1;
   }