Merge branch 'develop' into feature/slguan

documentation/webdocs/markdowndocs/Connector.md

@@ -745,7 +745,7 @@ TDengine also provides a Go client package named _taosSql_ for users to access T
 ```Go
 import (
     "database/sql"
-    _ "taosSql"
+    _ "github.com/taosdata/driver-go/taosSql"
 )
 ```
 

src/client/src/tscServer.c

@@ -157,6 +157,7 @@ void tscProcessActivityTimer(void *handle, void *tmrId) {
       return;
     }
 
+    pSql->cmd.command = TSDB_SQL_HB;
     pSql->param = pObj;
     pSql->pTscObj = pObj;
     pSql->signature = pSql;

tests/examples/go/src/taosapp/taosapp.go

@@ -19,7 +19,7 @@ import (
     "time"
     "log"
     "fmt"
-	_ "taosSql"
+	_ "github.com/taosdata/driver-go/taosSql"
 )
 
 func main() {