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From: victornoel (@victornoel) <[email protected]>
To: pgjdbc/pgjdbc <[email protected]>
Subject: [pgjdbc/pgjdbc] issue #3608: Support BigInteger[] in PgPreparedStatement#setObject(int, java.lang.Object)
Date: Thu, 17 Apr 2025 15:50:10 +0000
Message-ID: <[email protected]> (raw)

**Describe the issue**

Hi, I noticed that even though I can use `PreparedStatement.setObject` with an array of `BigInteger` I get the following exception:
```
Exception in thread "main" org.postgresql.util.PSQLException: Cannot cast an instance of [Ljava.math.BigInteger; to type Types.ARRAY
	at org.postgresql.jdbc.PgPreparedStatement.setObject(PgPreparedStatement.java:1059)
	at default.Test.main(DefaultDomainContext.java:211)
Caused by: java.sql.SQLFeatureNotSupportedException
	at org.postgresql.jdbc.PgPreparedStatement.setObjectArray(PgPreparedStatement.java:777)
	at org.postgresql.jdbc.PgPreparedStatement.setObject(PgPreparedStatement.java:1056)
	... 1 more
```

If I do the same (see repro below) with `BigDecimal`, it works as expected.

**Driver Version?** 

42.7.5

**Java Version?**

21

**OS Version?**

Archlinux

**PostgreSQL Version?**

17

**To Reproduce**

```
    public static void main(String[] args) throws Exception {
        String url = "jdbc:postgresql://localhost:5432/postgres";
        Properties props = new Properties();
        props.setProperty("user", "postgres");
        props.setProperty("password", "postgres");
        try (Connection conn = DriverManager.getConnection(url, props)) {
            try (PreparedStatement statement = conn.prepareStatement("select ? = ANY(?)")) {
                statement.setObject(1, BigInteger.ONE);
                statement.setObject(2, new BigInteger[]{BigInteger.ONE});
                try (ResultSet rs = statement.executeQuery()) {
                    if (rs.next()) {
                        System.out.println("result: " + rs.getBoolean(1));
                    }
                }
            }
        }
    }
```


**Expected behaviour**

It would work :)

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  Subject: Re: [pgjdbc/pgjdbc] issue #3608: Support BigInteger[] in PgPreparedStatement#setObject(int, java.lang.Object)
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