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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2021/11/17 03:01:59 UTC
[GitHub] [shardingsphere] CrackerSuperior opened a new issue #13653: Why is the actual executed SQL displayed in the "shardingShpere" log different from the actual SQL executed by MySQL itself?
CrackerSuperior opened a new issue #13653:
URL: https://github.com/apache/shardingsphere/issues/13653
version：
master
shardingSphere log：
``` sql
[INFO ] 2021-11-17 10:55:12.901 [Connection-4-ThreadExecutor] ShardingSphere-SQL - Logic SQL: SELECT * FROM insert4 o INNER JOIN insert5 i ON o.id = i.id WHERE i.id > 3
[INFO ] 2021-11-17 10:55:12.901 [Connection-4-ThreadExecutor] ShardingSphere-SQL - SQLStatement: MySQLSelectStatement(limit=Optional.empty, lock=Optional.empty, window=Optional.empty)
[INFO ] 2021-11-17 10:55:12.902 [Connection-4-ThreadExecutor] ShardingSphere-SQL - Actual SQL: ds_0 ::: SELECT * FROM insert4 o INNER JOIN insert5 i ON o.id = i.id WHERE i.id > 3
[INFO ] 2021-11-17 10:55:12.902 [Connection-4-ThreadExecutor] ShardingSphere-SQL - Actual SQL: ds_1 ::: SELECT * FROM insert4 o INNER JOIN insert5 i ON o.id = i.id WHERE i.id > 3
```
MySQL log:
``` sql
event_time: 2021-11-17 10:55:12.938037
user_host: pcloud[pcloud] @ localhost [127.0.0.1]
thread_id: 443
server_id: 1
command_type: Query
argument: SELECT `id`, `sharding`, `sex`, `name`, `text`, `longtexts`, `time`, `money` FROM `insert5`
*************************** 9. row ***************************
event_time: 2021-11-17 10:55:12.938037
user_host: pcloud[pcloud] @ localhost [127.0.0.1]
thread_id: 444
server_id: 1
command_type: Query
argument: SELECT `id`, `sharding`, `sex`, `name`, `text`, `longtexts`, `time`, `money` FROM `insert5`
*************************** 10. row ***************************
event_time: 2021-11-17 10:55:12.948604
user_host: pcloud[pcloud] @ localhost [127.0.0.1]
thread_id: 440
server_id: 1
command_type: Query
argument: SELECT `id`, `sharding`, `sex`, `name`, `text`, `longtexts`, `time`, `money` FROM `insert4`
*************************** 11. row ***************************
event_time: 2021-11-17 10:55:12.948604
user_host: pcloud[pcloud] @ localhost [127.0.0.1]
thread_id: 439
server_id: 1
command_type: Query
argument: SELECT `id`, `sharding`, `sex`, `name`, `text`, `longtexts`, `time`, `money` FROM `insert4`
```
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[GitHub] [shardingsphere] terrymanu closed issue #13653: Why is the actual executed SQL displayed in the "shardingShpere" log different from the actual SQL executed by MySQL itself?
Posted by GitBox <gi...@apache.org>.
terrymanu closed issue #13653:
URL: https://github.com/apache/shardingsphere/issues/13653
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[GitHub] [shardingsphere] CrackerSuperior commented on issue #13653: Why is the actual executed SQL displayed in the "shardingShpere" log different from the actual SQL executed by MySQL itself?
Posted by GitBox <gi...@apache.org>.
CrackerSuperior commented on issue #13653:
URL: https://github.com/apache/shardingsphere/issues/13653#issuecomment-971139843
> @CrackerSuperior Yes, the logs currently printed are indeed not actually executed SQL. The federation execution engine processes and executes the user's logical SQL internally. We will optimize log printing and output the sql executed inside the federation execution engine.
ok
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[GitHub] [shardingsphere] CrackerSuperior commented on issue #13653: Why is the actual executed SQL displayed in the "shardingShpere" log different from the actual SQL executed by MySQL itself?
Posted by GitBox <gi...@apache.org>.
CrackerSuperior commented on issue #13653:
URL: https://github.com/apache/shardingsphere/issues/13653#issuecomment-971133108
> version： master
>
> shardingSphere log：
>
> ```sql
> [INFO ] 2021-11-17 10:55:12.901 [Connection-4-ThreadExecutor] ShardingSphere-SQL - Logic SQL: SELECT * FROM insert4 o INNER JOIN insert5 i ON o.id = i.id WHERE i.id > 3
> [INFO ] 2021-11-17 10:55:12.901 [Connection-4-ThreadExecutor] ShardingSphere-SQL - SQLStatement: MySQLSelectStatement(limit=Optional.empty, lock=Optional.empty, window=Optional.empty)
> [INFO ] 2021-11-17 10:55:12.902 [Connection-4-ThreadExecutor] ShardingSphere-SQL - Actual SQL: ds_0 ::: SELECT * FROM insert4 o INNER JOIN insert5 i ON o.id = i.id WHERE i.id > 3
> [INFO ] 2021-11-17 10:55:12.902 [Connection-4-ThreadExecutor] ShardingSphere-SQL - Actual SQL: ds_1 ::: SELECT * FROM insert4 o INNER JOIN insert5 i ON o.id = i.id WHERE i.id > 3
> ```
>
> MySQL log:
>
> ```sql
> event_time: 2021-11-17 10:55:12.938037
> user_host: pcloud[pcloud] @ localhost [127.0.0.1]
> thread_id: 443
> server_id: 1
> command_type: Query
> argument: SELECT `id`, `sharding`, `sex`, `name`, `text`, `longtexts`, `time`, `money` FROM `insert5`
> *************************** 9. row ***************************
> event_time: 2021-11-17 10:55:12.938037
> user_host: pcloud[pcloud] @ localhost [127.0.0.1]
> thread_id: 444
> server_id: 1
> command_type: Query
> argument: SELECT `id`, `sharding`, `sex`, `name`, `text`, `longtexts`, `time`, `money` FROM `insert5`
> *************************** 10. row ***************************
> event_time: 2021-11-17 10:55:12.948604
> user_host: pcloud[pcloud] @ localhost [127.0.0.1]
> thread_id: 440
> server_id: 1
> command_type: Query
> argument: SELECT `id`, `sharding`, `sex`, `name`, `text`, `longtexts`, `time`, `money` FROM `insert4`
> *************************** 11. row ***************************
> event_time: 2021-11-17 10:55:12.948604
> user_host: pcloud[pcloud] @ localhost [127.0.0.1]
> thread_id: 439
> server_id: 1
> command_type: Query
> argument: SELECT `id`, `sharding`, `sex`, `name`, `text`, `longtexts`, `time`, `money` FROM `insert4`
> ```
>
> Why is the actual executed SQL displayed in the "shardingShpere" log different from the actual SQL executed by MySQL itself?
And I opened the "Federation" engine, which is a cross-database related query.
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[GitHub] [shardingsphere] strongduanmu commented on issue #13653: Why is the actual executed SQL displayed in the "shardingShpere" log different from the actual SQL executed by MySQL itself?
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #13653:
URL: https://github.com/apache/shardingsphere/issues/13653#issuecomment-971136149
@CrackerSuperior Yes, the logs currently printed are indeed not actually executed SQL. The federation execution engine processes and executes the user's logical SQL internally. We will optimize log printing and output the sql executed inside the federation execution engine.
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