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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/11/23 08:35:19 UTC
[GitHub] [shardingsphere] wsm12138 opened a new issue, #22360: About digital presentation，Proxy have different with DB
wsm12138 opened a new issue, #22360:
URL: https://github.com/apache/shardingsphere/issues/22360
## Bug Report
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Before report a bug, make sure you have:
- Searched open and closed [GitHub issues](https://github.com/apache/shardingsphere/issues).
- Read documentation: [ShardingSphere Doc](https://shardingsphere.apache.org/document/current/en/overview).
Please pay attention on issues you submitted, because we maybe need more details.
If no response anymore and we cannot reproduce it on current information, we will **close it**.
Please answer these questions before submitting your issue. Thanks!
### Which version of ShardingSphere did you use?
792829660d2bf7b2dbc7890d8431242a47541333
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy
### Expected behavior
SS have same performance
### Actual behavior
#### proxy
<img width="946" alt="image" src="https://user-images.githubusercontent.com/86462784/203500635-2c3114f1-4cdc-4f5d-a10d-36072ee1377a.png">
<img width="607" alt="image" src="https://user-images.githubusercontent.com/86462784/203501908-a576fbf0-838a-41c5-ac03-d45404be316a.png">
#### DB
<img width="853" alt="image" src="https://user-images.githubusercontent.com/86462784/203501741-df7bc353-734c-48df-84c0-39321f58326c.png">
### Reason analyze (If you can)
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.
case like https://github.com/apache/shardingsphere/issues/22170
```
test=> \d t_ssdb_tb
Table "public.t_ssdb_tb"
Column | Type | Modifiers
--------+---------------+-----------
id | integer |
c_id | integer |
a | integer |
b | character(10) |
```
### Example codes for reproduce this issue (such as a github link).
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[GitHub] [shardingsphere] RaigorJiang commented on issue #22360: About digital presentation，Proxy have different with DB
Posted by "RaigorJiang (via GitHub)" <gi...@apache.org>.
RaigorJiang commented on issue #22360:
URL: https://github.com/apache/shardingsphere/issues/22360#issuecomment-1407541735
Closed for duplicate of https://github.com/apache/shardingsphere/issues/15593
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[GitHub] [shardingsphere] strongduanmu commented on issue #22360: About digital presentation，Proxy have different with DB
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #22360:
URL: https://github.com/apache/shardingsphere/issues/22360#issuecomment-1324712401
Yes, you are right. Now, ShardingSphere only supports 4 decimal places, which seems to be the behavior of mysql.
```java
/**
* Average aggregation unit.
*/
@RequiredArgsConstructor
public final class AverageAggregationUnit implements AggregationUnit {
private BigDecimal count;
private BigDecimal sum;
@Override
public void merge(final List<Comparable<?>> values) {
if (null == values || null == values.get(0) || null == values.get(1)) {
return;
}
if (null == count) {
count = new BigDecimal("0");
}
if (null == sum) {
sum = new BigDecimal("0");
}
count = count.add(new BigDecimal(values.get(0).toString()));
sum = sum.add(new BigDecimal(values.get(1).toString()));
}
@Override
public Comparable<?> getResult() {
if (null == count || BigDecimal.ZERO.equals(count)) {
return count;
}
// TODO use metadata to fetch float number precise for database field
return sum.divide(count, 4, RoundingMode.HALF_UP);
}
}
```
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[GitHub] [shardingsphere] RaigorJiang closed issue #22360: About digital presentation，Proxy have different with DB
Posted by "RaigorJiang (via GitHub)" <gi...@apache.org>.
RaigorJiang closed issue #22360: About digital presentation，Proxy have different with DB
URL: https://github.com/apache/shardingsphere/issues/22360
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[GitHub] [shardingsphere] strongduanmu commented on issue #22360: About digital presentation，Proxy have different with DB
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #22360:
URL: https://github.com/apache/shardingsphere/issues/22360#issuecomment-1324714523
Related with #15593
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