[TBASE-1047] Go connector prints all the SQL. This will harm the performance...

[TBASE-1047] Go connector prints all the SQL. This will harm the performance and consume unnecessary hard disk space. Modified to print only the SQLs which returns error.

src/connector/go/src/taosSql/taosSqlCgo.go

@@ -29,46 +29,47 @@ import (
 	"unsafe"
 )
 
-func (mc *taosConn) taosConnect(ip, user, pass, db string, port int) (taos unsafe.Pointer, err error){
+func (mc *taosConn) taosConnect(ip, user, pass, db string, port int) (taos unsafe.Pointer, err error) {
 	cuser := C.CString(user)
 	cpass := C.CString(pass)
-	cip   := C.CString(ip)
-	cdb   := C.CString(db)
+	cip := C.CString(ip)
+	cdb := C.CString(db)
 	defer C.free(unsafe.Pointer(cip))
 	defer C.free(unsafe.Pointer(cuser))
 	defer C.free(unsafe.Pointer(cpass))
 	defer C.free(unsafe.Pointer(cdb))
 
 	taosObj := C.taos_connect(cip, cuser, cpass, cdb, (C.int)(port))
-    if taosObj == nil {
-        return nil, errors.New("taos_connect() fail!")
-    }
+	if taosObj == nil {
+		return nil, errors.New("taos_connect() fail!")
+	}
 
-    return (unsafe.Pointer)(taosObj), nil
-} 
+	return (unsafe.Pointer)(taosObj), nil
+}
 
 func (mc *taosConn) taosQuery(sqlstr string) (int, error) {
-	taosLog.Printf("taosQuery() input sql:%s\n", sqlstr)
+	//taosLog.Printf("taosQuery() input sql:%s\n", sqlstr)
 
-    csqlstr   := C.CString(sqlstr)
+	csqlstr := C.CString(sqlstr)
 	defer C.free(unsafe.Pointer(csqlstr))
-    code := int(C.taos_query(mc.taos, csqlstr))
+	code := int(C.taos_query(mc.taos, csqlstr))
 
-    if 0 != code {
-    	mc.taos_error()
-    	errStr := C.GoString(C.taos_errstr(mc.taos))
-    	taosLog.Println("taos_query() failed:", errStr)
-	    return 0, errors.New(errStr)
-    }
+	if 0 != code {
+		mc.taos_error()
+		errStr := C.GoString(C.taos_errstr(mc.taos))
+		taosLog.Println("taos_query() failed:", errStr)
+		taosLog.Printf("taosQuery() input sql:%s\n", sqlstr)
+		return 0, errors.New(errStr)
+	}
 
-    // read result and save into mc struct
-    num_fields := int(C.taos_field_count(mc.taos))
-    if 0 == num_fields { // there are no select and show kinds of commands
-        mc.affectedRows = int(C.taos_affected_rows(mc.taos))
-        mc.insertId     = 0
-    }
+	// read result and save into mc struct
+	num_fields := int(C.taos_field_count(mc.taos))
+	if 0 == num_fields { // there are no select and show kinds of commands
+		mc.affectedRows = int(C.taos_affected_rows(mc.taos))
+		mc.insertId = 0
+	}
 
-    return num_fields, nil
+	return num_fields, nil
 }
 
 func (mc *taosConn) taos_close() {
@@ -76,8 +77,8 @@ func (mc *taosConn) taos_close() {
 }
 
 func (mc *taosConn) taos_error() {
-    // free local resouce: allocated memory/metric-meta refcnt
-    //var pRes unsafe.Pointer
-    pRes := C.taos_use_result(mc.taos)
-    C.taos_free_result(pRes)
+	// free local resouce: allocated memory/metric-meta refcnt
+	//var pRes unsafe.Pointer
+	pRes := C.taos_use_result(mc.taos)
+	C.taos_free_result(pRes)
 }