ReyYang commented on pull request #14767:
URL: https://github.com/apache/shardingsphere/pull/14767#issuecomment-1012907871
During debugging, it was found that the Java Type returned by PgResultSet is
java.lang.Double, and the type needed to insert into PostgreSQL is
java.math.BigDecimal
- test case
```groovy
import java.sql.Connection
import java.sql.Driver
import java.sql.PreparedStatement
Class clazz = Class.forName("org.postgresql.Driver");
Driver driver = clazz.newInstance() as Driver;
String url = "jdbc:postgresql://127.0.0.1:5432/demo_ds_0";
Properties info = new Properties();
info.setProperty("user", "postgres");
info.setProperty("password", "123456");
Connection conn = driver.connect(url, info);
PreparedStatement ps = conn.prepareStatement("insert into table_mix_test
(id, shard_id, t_money) values (?, ?, ?);")
ps.setObject(1, 1);
ps.setObject(2, 1);
ps.setObject(4, new BigDecimal(100.4));
def execute = ps.execute()
println execute
```
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