huoyue

### Steps to reproduce the behavior (Required) ``` sr 1. CREATE TABLE '...' CREATE TABLE `duplicate_table_decimal_v3_with_null_flink_sink` ( k0 int,v1 date,v2 datetime,v3 char(20),v4 varchar(20),v5 string,v6 boolean,v7 tinyint ,v8 smallint ,v9 int...

[pipe load] The user does not have insert permission, but pipe load can import data into the table

1

### Steps to reproduce the behavior (Required) create user and grant ``` create database pipe_load_db; use pipe_load_db create table customer ( c_customer_sk integer not null, c_customer_id char(16) not null, c_current_cdemo_sk...

### Steps to reproduce the behavior (Required) 1. CREATE TABLE '...' data file rows is 20 ``` 2020-06-23 2020-06-23 00:00:00 beijing haidian 1 -128 -32768 -2147483648 -9223372036854775808 -18446744073709551616 -3.1 -3.14...