FlyingZC commented on issue #22026:
URL:
https://github.com/apache/shardingsphere/issues/22026#issuecomment-1309848084
The simle example to reproduce this issue:
```java
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import static org.junit.Assert.assertEquals;
public class SimpleTest {
public static void main(String[] args) throws Exception {
Connection conn1 = getConnection("localhost", 3307, "root", "root",
"sharding_db");
executeWithLog(conn1, "delete from account;");
rollback();
}
public static void rollback() throws Exception {
Connection conn2 = getConnection("localhost", 3307, "root", "root",
"sharding_db");
conn2.setAutoCommit(false);
assertAccountRowCount(conn2, 0);
Statement std1 = conn2.createStatement();
std1.execute("insert into account(id, balance, transaction_id)
values(1, 1, 1);");
assertAccountRowCount(conn2, 1);
conn2.rollback();
assertAccountRowCount(conn2, 0);
}
private static Connection getConnection(String ip, int port, String
user, String pwd, String db) throws SQLException {
return
DriverManager.getConnection(String.format("jdbc:opengauss://%s:%d/%s", ip,
port, db), user, pwd);
}
protected static void assertAccountRowCount(final Connection conn, final
int rowNum) {
assertTableRowCount(conn, "account", rowNum);
}
protected static void assertTableRowCount(final Connection conn, final
String tableName, final int rowNum) throws SQLException {
Statement statement = conn.createStatement();
ResultSet rs = statement.executeQuery("select * from " + tableName);
int resultSetCount = 0;
while (rs.next()) {
resultSetCount++;
}
statement.close();
assertEquals(String.format("Recode num assert error, expect: %s,
actual: %s.", rowNum, resultSetCount), rowNum, resultSetCount);
}
public static void executeWithLog(final Connection connection, final
String sql) {
System.out.println("Connection execute: {}." + sql);
connection.createStatement().execute(sql);
}
}
```
yaml config-sharding:
```yaml
databaseName: sharding_db
dataSources:
ds_0:
url: jdbc:opengauss://localhost:15432/omm
username: gaussdb
password: x
connectionTimeoutMilliseconds: 30000
idleTimeoutMilliseconds: 60000
maxLifetimeMilliseconds: 1800000
maxPoolSize: 50
minPoolSize: 1
ds_1:
url: jdbc:opengauss://localhost:15432/postgres
username: gaussdb
password: x
connectionTimeoutMilliseconds: 30000
idleTimeoutMilliseconds: 60000
maxLifetimeMilliseconds: 1800000
maxPoolSize: 50
minPoolSize: 1
rules:
- !SHARDING
tables:
t_order:
actualDataNodes: ds_${0..1}.t_order_${0..1}
tableStrategy:
standard:
shardingColumn: order_id
shardingAlgorithmName: t_order_inline
keyGenerateStrategy:
column: order_id
keyGeneratorName: snowflake
t_order_item:
actualDataNodes: ds_${0..1}.t_order_item_${0..1}
tableStrategy:
standard:
shardingColumn: order_id
shardingAlgorithmName: t_order_item_inline
keyGenerateStrategy:
column: order_item_id
keyGeneratorName: snowflake
bindingTables:
- t_order,t_order_item
defaultDatabaseStrategy:
standard:
shardingColumn: user_id
shardingAlgorithmName: database_inline
defaultTableStrategy:
none:
shardingAlgorithms:
database_inline:
type: INLINE
props:
algorithm-expression: ds_${user_id % 2}
t_order_inline:
type: INLINE
props:
algorithm-expression: t_order_${order_id % 2}
t_order_item_inline:
type: INLINE
props:
algorithm-expression: t_order_item_${order_id % 2}
keyGenerators:
snowflake:
type: SNOWFLAKE
```
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