fix: pg read npe (#1201)

Co-authored-by: mikatong <mikatong@tencent.com>

Author: tongyiming

tencentcloud/resource_tc_postgresql_instance.go

@@ -1015,12 +1015,12 @@ func resourceTencentCloudPostgresqlInstanceRead(d *schema.ResourceData, meta int
 		instance, has, inErr = postgresqlService.DescribePostgresqlInstanceById(ctx, d.Id())
 		if inErr != nil {
 			ee, ok := inErr.(*sdkErrors.TencentCloudSDKError)
-			if ok && ee.GetCode() == "ResourceNotFound.InstanceNotFoundError" {
+			if ok && (ee.GetCode() == "ResourceNotFound.InstanceNotFoundError" || ee.GetCode() == "InvalidParameter") {
 				return nil
 			}
 			return retryError(inErr)
 		}
-		if IsContains(POSTGRESQL_RETRYABLE_STATUS, *instance.DBInstanceStatus) {
+		if instance != nil && IsContains(POSTGRESQL_RETRYABLE_STATUS, *instance.DBInstanceStatus) {
 			return resource.RetryableError(fmt.Errorf("instance %s is %s, retrying", *instance.DBInstanceId, *instance.DBInstanceStatus))
 		}
 		return nil

tencentcloud/service_tencentcloud_postgresql.go

@@ -360,18 +360,10 @@ func (me *PostgresqlService) DescribePostgresqlInstanceById(ctx context.Context,
 	ratelimit.Check(request.GetAction())
 	response, err := me.client.UsePostgresqlClient().DescribeDBInstanceAttribute(request)
 	if err != nil {
-		ee, ok := err.(*sdkErrors.TencentCloudSDKError)
-		if !ok {
-			errRet = err
-			return
-		}
-		if ee.Code == "InvalidParameter" || ee.Code == "ResourceNotFound.InstanceNotFoundError" {
-			errRet = nil
-		} else {
-			errRet = err
-		}
+		errRet = err
 		return
 	}
+
 	if response == nil || response.Response == nil {
 		errRet = fmt.Errorf("TencentCloud SDK return nil response, %s", request.GetAction())
 		return