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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2021/09/18 08:56:09 UTC
[GitHub] [shardingsphere] sccc803 opened a new issue #12553: Proxy returns wrong result when executing sql statement with subquery.
sccc803 opened a new issue #12553:
URL: https://github.com/apache/shardingsphere/issues/12553
### Which version of ShardingSphere did you use?
Master branch.
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy.
### Expected behavior
Here is a logic table called `sbtest` like this:
id | k | c | pad
-- | -- | -- | --
645998280928395264 | 0 | 0 | pad0
645998323827736577 | 1 | 0 | pad0
Execute a sql statement:
myslq > SELECT * FROM sbtest WHERE c = (SELECT c FROM sbtest WHERE k = 1);
Expected result rows:
id | k | c | pad
-- | -- | -- | --
645998280928395264 | 0 | 0 | pad0
645998323827736577 | 1 | 0 | pad0
### Actual behavior
Actual result rows:
id | k | c | pad
-- | -- | -- | --
645998323827736577 | 1 | 0 | pad0
It supposed to retrun 2 rows, but there is only 1 row.
### Reason analyze (If you can)
In this case , proxy uses the ShardingStandardRoutingEngine to route, perhaps shoud use the ShardingFederatedRoutingEngine or some other one?
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.
1. Set configurition file like this:
``` yaml
schemaName: sharding_db
dataSources:
ds_0:
url: jdbc:mysql://127.0.0.1:3306/test?serverTimezone=UTC&useSSL=false
username: root
password: root
connectionTimeoutMilliseconds: 30000
idleTimeoutMilliseconds: 60000
maxLifetimeMilliseconds: 1800000
maxPoolSize: 50
minPoolSize: 50
rules:
- !SHARDING
tables:
sbtest:
actualDataNodes: ds_0.sbtest_${0..1}
tableStrategy:
standard:
shardingColumn: k
shardingAlgorithmName: table_mod
keyGenerateStrategy:
column: id
keyGeneratorName: increment
shardingAlgorithms:
table_mod:
props:
sharding-count: 2
type: MOD
keyGenerators:
increment:
type: SNOWFLAKE
```
2. Create sbtest_0 , sbtest_1 on ds_0:
``` sql
CREATE TABLE `sbtest_xx` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`k` int(11) NOT NULL DEFAULT '0',
`c` char(120) NOT NULL DEFAULT '',
`pad` char(60) NOT NULL DEFAULT '',
PRIMARY KEY (`id`),
KEY `k_1` (`k`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
```
3. Start up proxy, and execute insert statements:
``` sql
INSERT INTO sbtest (k,c,pad) VALUES (0,0,'pad0');
INSERT INTO sbtest (k,c,pad) VALUES (1,0,'pad0');
```
4. Execute the select stamentment and observing result:
``` sql
SELECT * FROM sbtest WHERE c = (SELECT c FROM sbtest WHERE k = 1);
```
### Example codes for reproduce this issue (such as a github link).
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[GitHub] [shardingsphere] tristaZero edited a comment on issue #12553: Proxy returns wrong result when executing sql statement with subquery.
Posted by GitBox <gi...@apache.org>.
tristaZero edited a comment on issue #12553:
URL: https://github.com/apache/shardingsphere/issues/12553#issuecomment-922473282
@sccc803 Hi, thanks for your detailed report. It's informative, nice.
@strongduanmu could you check this one?
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[GitHub] [shardingsphere] tristaZero commented on issue #12553: Proxy returns wrong result when executing sql statement with subquery.
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #12553:
URL: https://github.com/apache/shardingsphere/issues/12553#issuecomment-927571915
@CrackerSuperior Hi, look forward.
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[GitHub] [shardingsphere] strongduanmu commented on issue #12553: Proxy returns wrong result when executing sql statement with subquery.
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #12553:
URL: https://github.com/apache/shardingsphere/issues/12553#issuecomment-926344538
Hi @sccc803 @CrackerSuperior, can you help test whether the current subquery results correct?
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[GitHub] [shardingsphere] strongduanmu commented on issue #12553: Proxy returns wrong result when executing sql statement with subquery.
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #12553:
URL: https://github.com/apache/shardingsphere/issues/12553#issuecomment-922494654
Hi @sccc803, thank you for your feedback, I will check this problem.
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[GitHub] [shardingsphere] tristaZero commented on issue #12553: Proxy returns wrong result when executing sql statement with subquery.
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #12553:
URL: https://github.com/apache/shardingsphere/issues/12553#issuecomment-922473282
@sccc803 Hi, thanks for your detailed report.
@strongduanmu could you check this one?
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[GitHub] [shardingsphere] CrackerSuperior commented on issue #12553: Proxy returns wrong result when executing sql statement with subquery.
Posted by GitBox <gi...@apache.org>.
CrackerSuperior commented on issue #12553:
URL: https://github.com/apache/shardingsphere/issues/12553#issuecomment-927248140
> 嗨@sccc803 @CrackerSuperior，你能帮忙测试一下当前的子查询结果是否正确吗？
Ok, I'll test it sometime.
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[GitHub] [shardingsphere] tristaZero closed issue #12553: Proxy returns wrong result when executing sql statement with subquery.
Posted by GitBox <gi...@apache.org>.
tristaZero closed issue #12553:
URL: https://github.com/apache/shardingsphere/issues/12553
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