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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2021/04/15 02:22:43 UTC
[GitHub] [shardingsphere] xianshun163 opened a new issue #10092: Subquery does not support as
xianshun163 opened a new issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092
## Bug Report
A simple example:
select o.id from ( select order_id as id from t_order ) o;
In our business code, It is used very frequently.
It is that any suggestions, how to support it ?
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[GitHub] [shardingsphere] xianshun163 commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
xianshun163 commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-820026545
I use the master branches code.
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[GitHub] [shardingsphere] xianshun163 commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
xianshun163 commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-820363467
> > select o.id from ( select order_id as id from t_order ) o;
>
> @xianshun163 Hi is there any exception?
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[GitHub] [shardingsphere] tristaZero commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-821048462
Hi @xianshun163 ,
Thanks for your feedback, looks valuable.
@strongduanmu , could you have a look at this one?
It seems we do not prepare the correct query header due to the metadata of a subquery.
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[GitHub] [shardingsphere] tristaZero commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-822882284
Hey, welcome. :) The beta release is under preparation now. WeChat ID `ss_assistant_1` will guide you to enter WeChat group.
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[GitHub] [shardingsphere] tristaZero commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-820352390
> select o.id from ( select order_id as id from t_order ) o;
@xianshun163 Hi is there any exception?
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[GitHub] [shardingsphere] tristaZero commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-864517461
@xianshun163 So is that a potential bug?
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[GitHub] [shardingsphere] strongduanmu commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-858355923
@xianshun163 This exception is fixed by #10582. The following is the result of the latest code execution.
```
mysql> select o.id from ( select order_id as id from t_order ) o;
+-----+
| id |
+-----+
| 2 |
| 4 |
| 6 |
| 8 |
| 59 |
| 100 |
| 1 |
| 3 |
| 5 |
| 7 |
| 11 |
+-----+
11 rows in set (1.01 sec)
```
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[GitHub] [shardingsphere] strongduanmu closed issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
strongduanmu closed issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092
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[GitHub] [shardingsphere] xianshun163 commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
xianshun163 commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-820362485
Hi, I use the shardingsphere proxy, and this is the msg ：
[ERROR] 2021-04-15 19:19:08.792 [ShardingSphere-Command-22] o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at org.apache.shardingsphere.proxy.backend.response.header.query.impl.QueryHeaderBuilder.build(QueryHeaderBuilder.java:77)
at org.apache.shardingsphere.proxy.backend.response.header.query.impl.QueryHeaderBuilder.build(QueryHeaderBuilder.java:64)
at org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.createQueryHeader(DatabaseCommunicationEngine.java:123)
at org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.createQueryHeaders(DatabaseCommunicationEngine.java:115)
at org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteQuery(DatabaseCommunicationEngine.java:106)
at org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:101)
at org.apache.shardingsphere.proxy.backend.text.data.impl.SchemaAssignedDatabaseBackendHandler.execute(SchemaAssignedDatabaseBackendHandler.java:55)
at org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:57)
at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:93)
at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:71)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
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[GitHub] [shardingsphere] xianshun163 commented on issue #10092: Subquery does not support as
Posted by GitBox <gi...@apache.org>.
xianshun163 commented on issue #10092:
URL: https://github.com/apache/shardingsphere/issues/10092#issuecomment-822209636
@tristaZero do you know when the 5.0.0-beta will publish？
I am testing the master branch code ，and want to use to the production。
In addition, is that still have a wechat group ?
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