fix: sysdb cache removed cause of drop db operation

source/client/src/clientMsgHandler.c

@@ -20,6 +20,7 @@
 #include "query.h"
 #include "tdef.h"
 #include "tname.h"
+#include "systable.h"
 
 static void setErrno(SRequestObj* pRequest, int32_t code) {
   pRequest->code = code;
@@ -326,6 +327,8 @@ int32_t processDropDbRsp(void* param, SDataBuf* pMsg, int32_t code) {
     int32_t          code = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &pCatalog);
     if (TSDB_CODE_SUCCESS == code) {
       catalogRemoveDB(pCatalog, dropdbRsp.db, dropdbRsp.uid);
+      catalogRemoveDB(pCatalog, TSDB_INFORMATION_SCHEMA_DB, 0);
+      catalogRemoveDB(pCatalog, TSDB_PERFORMANCE_SCHEMA_DB, 0);
     }
   }
 

source/libs/catalog/src/catalog.c

@@ -1076,6 +1076,9 @@ int32_t catalogRefreshTableMeta(SCatalog* pCtg, SRequestConnInfo* pConn, const S
   SCtgTbMetaCtx ctx = {0};
   ctx.pName = (SName*)pTableName;
   ctx.flag = CTG_FLAG_FORCE_UPDATE | CTG_FLAG_MAKE_STB(isSTable);
+  if (IS_SYS_DBNAME(ctx.pName->dbname)) {
+    CTG_FLAG_SET_SYS_DB(ctx.flag);
+  }
 
   CTG_API_LEAVE(ctgRefreshTbMeta(pCtg, pConn, &ctx, NULL, true));
 }

source/libs/catalog/src/ctgCache.c

@@ -663,6 +663,7 @@ int32_t ctgDropDbCacheEnqueue(SCatalog *pCtg, const char *dbFName, int64_t dbId)
   int32_t             code = 0;
   SCtgCacheOperation *op = taosMemoryCalloc(1, sizeof(SCtgCacheOperation));
   op->opId = CTG_OP_DROP_DB_CACHE;
+  op->syncOp = true;
 
   SCtgDropDBMsg *msg = taosMemoryMalloc(sizeof(SCtgDropDBMsg));
   if (NULL == msg) {
@@ -1612,11 +1613,11 @@ int32_t ctgOpUpdateVgroup(SCtgCacheOperation *operation) {
 
   dbCache = NULL;
 
-  if (!IS_SYS_DBNAME(dbFName)) {
+  //if (!IS_SYS_DBNAME(dbFName)) {
     tstrncpy(vgVersion.dbFName, dbFName, sizeof(vgVersion.dbFName));
     CTG_ERR_JRET(ctgMetaRentUpdate(&msg->pCtg->dbRent, &vgVersion, vgVersion.dbId, sizeof(SDbVgVersion),
                                    ctgDbVgVersionSortCompare, ctgDbVgVersionSearchCompare));
-  }
+  //}
 
 _return:
 
@@ -1641,7 +1642,7 @@ int32_t ctgOpDropDbCache(SCtgCacheOperation *operation) {
     goto _return;
   }
 
-  if (dbCache->dbId != msg->dbId) {
+  if (msg->dbId && dbCache->dbId != msg->dbId) {
     ctgInfo("dbId already updated, dbFName:%s, dbId:0x%" PRIx64 ", targetId:0x%" PRIx64, msg->dbFName, dbCache->dbId,
             msg->dbId);
     goto _return;