enh: add the errorcode TSDB_CODE_MND_DB_RETENTION_PERIOD_ZERO

include/util/taoserror.h

@@ -288,6 +288,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_MND_INVALID_DB_ACCT           TAOS_DEF_ERROR_CODE(0, 0x0389) // internal
 #define TSDB_CODE_MND_DB_OPTION_UNCHANGED       TAOS_DEF_ERROR_CODE(0, 0x038A) // 
 #define TSDB_CODE_MND_DB_INDEX_NOT_EXIST        TAOS_DEF_ERROR_CODE(0, 0x038B)
+#define TSDB_CODE_MND_DB_RETENTION_PERIOD_ZERO  TAOS_DEF_ERROR_CODE(0, 0x038C)
 // #define TSDB_CODE_MND_INVALID_DB_OPTION_DAYS TAOS_DEF_ERROR_CODE(0, 0x0390) // 2.x
 // #define TSDB_CODE_MND_INVALID_DB_OPTION_KEEP TAOS_DEF_ERROR_CODE(0, 0x0391) // 2.x
 // #define TSDB_CODE_MND_INVALID_TOPIC          TAOS_DEF_ERROR_CODE(0, 0x0392) // 2.x

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

@@ -855,7 +855,7 @@ static int32_t mndProcessAlterDbReq(SRpcMsg *pReq) {
   }
 
   if (numOfTopics != 0 && alterReq.walRetentionPeriod == 0) {
-    terrno = TSDB_CODE_MND_INVALID_DB_OPTION;
+    terrno = TSDB_CODE_MND_DB_RETENTION_PERIOD_ZERO;
     mError("db:%s, not allowed to set WAL_RETENTION_PERIOD 0 when there are topics defined. numOfTopics:%d", pDb->name,
            numOfTopics);
     goto _OVER;

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

@@ -606,7 +606,7 @@ static int32_t mndProcessCreateTopicReq(SRpcMsg *pReq) {
   }
 
   if (pDb->cfg.walRetentionPeriod == 0) {
-    terrno = TSDB_CODE_MND_INVALID_DB_OPTION;
+    terrno = TSDB_CODE_MND_DB_RETENTION_PERIOD_ZERO;
     mError("db:%s, not allowed to create topic when WAL_RETENTION_PERIOD is zero", pDb->name);
     goto _OVER;
   }

source/util/src/terror.c

@@ -224,6 +224,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_DB,               "Invalid database name
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_TOO_MANY_DATABASES,       "Too many databases for account")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_DB_IN_DROPPING,           "Database in dropping status")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_DB_NOT_EXIST,             "Database not exist")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_DB_RETENTION_PERIOD_ZERO, "WAL retention period is zero")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_DB_ACCT,          "Invalid database account")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_DB_OPTION_UNCHANGED,      "Database options not changed")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_DB_INDEX_NOT_EXIST,       "Index not exist")