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Posted to user-zh@flink.apache.org by xuzh <hu...@qq.com> on 2020/09/10 09:36:24 UTC

回复： localtimestamp和current_timestamp插入mysql时区错乱

CREATE TABLE product2 (
  id INT,
  prod_nm STRING,
 primary key(id)  NOT ENFORCED --  '这个是官方给出'
) 
WITH (
    'connector' = 'jdbc',
    'url' = 'jdbc:mysql://10.12.5.37:3306/rs_report?useUnicode=true&amp;characterEncoding=UTF-8',
    'table-name' = 'sink',
    'driver' = 'com.mysql.jdbc.Driver',
    'username' = 'dps',
    'password' = 'dps1234'
);																																				




CREATE TABLE `sink2` (
  `local_dtm` varchar(100) DEFAULT NULL,
  `curr_dtm` varchar(100) DEFAULT NULL,
  `local_dtm_no_zone` varchar(100) DEFAULT NULL,
  `curr_dtm_no_zone` varchar(100) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8


drop table if exists sk;
CREATE TABLE sk (																																																																																																																																																																																																
 local_dtm TIMESTAMP,
 curr_dtm TIMESTAMP,
 local_dtm_no_zone   TIMESTAMP WITHOUT TIME ZONE,
 curr_dtm_no_zone   TIMESTAMP WITHOUT TIME ZONE
) 
WITH (
    'connector' = 'jdbc',
    'url' = 'jdbc:mysql://10.12.5.37:3306/rs_report?useUnicode=true&amp;characterEncoding=UTF-8',
    'table-name' = 'sink2',
    'driver' = 'com.mysql.jdbc.Driver',
    'username' = 'dps',
    'password' = 'dps1234'
);


insert into sk values(localtimestamp,current_timestamp,localtimestamp		,current_timestamp);


插入时间是：2020-09-09 15:25:55.416		
插入后结果：
local_dtm                           | curr_dtm                            | local_dtm_no_zone          | curr_dtm_no_zone           |
------------------------            | ------------------------            | ------------------------           | ------------------------            |
2020-09-09 02:25:55.416  | 2020-09-08 18:25:55.416 | 2020-09-09 02:25:55.416 | 2020-09-08 18:25:55.416 |						





------------------&nbsp;原始邮件&nbsp;------------------
发件人: "Leonard Xu"<xbjtdcq@gmail.com&gt;; 
发送时间: 2020年9月9日(星期三) 晚上9:51
收件人: "user-zh"<user-zh@flink.apache.org&gt;; 
主题: Re: localtimestamp和current_timestamp插入mysql时区错乱



Hi,

&gt;&nbsp;这样插入mysql&nbsp;后dtm时区是乱的，&nbsp;应该插入的是当前时间减8个小时的，变成了当前时间减21小时

变成当前时间减21小时这个感觉好奇怪，方便贴下完整的代码和数据吗？

Best
Leonard

Re: localtimestamp和current_timestamp插入mysql时区错乱

Posted by Leonard Xu <xb...@gmail.com>.
Hi

> insert into sk values(localtimestamp,current_timestamp,localtimestamp,current_timestamp);


1. 你flink里声明的字段类型和数据库的类型不匹配，需要保持一致，数据库里是varchar，flink是timestamp，完整类型映射可以参考[1]
2. 你插入的两个字段（ocaltimestamp,current_timestamp）的值可以贴出来看看？

Best
Leonard
[1]https://ci.apache.org/projects/flink/flink-docs-master/zh/dev/table/connectors/jdbc.html#data-type-mapping <https://ci.apache.org/projects/flink/flink-docs-master/zh/dev/table/connectors/jdbc.html#data-type-mapping>