CODEWITHSUNDEEP
javaspringpostgresqljdbcpostgresql-9.2
aviad
aviad

Reputation: 8278

How to pass BigInteger from java to Postgres?

I need to pass a BigInteger argument to SQL query. (on Postgres 9.2) I have this code in my DAO:

    public List<PersonInfo> select(String id) {
        BigInteger bigIntId = new BigInteger(id);
        JdbcTemplate select = new JdbcTemplate(dataSource);
        return select
            .query("SELECT * FROM PE.SUPPLIER_INPUT_DATA WHERE ID = ?",
                    new Object[] { bigIntId },
                    new PersonRowMapper());
    }

I am getting the following exception:

{"error":"Error invoking getPersonInfoById.[org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; 
bad SQL grammar [SELECT * FROM PE.SUPPLIER_INPUT_DATA WHERE ID = ?]; 
nested exception is org.postgresql.util.PSQLException: 
Can't infer the SQL type to use for an instance of java.math.BigInteger. 
Use setObject() with an explicit Types value to specify the type to use.]"}

The id is of type bigint

Tried to pass plain String - also throws type exception. Googled the message in the exception - no relevant result. Any ideas?

Upvotes: 6

Views: 20078

Answers (4)

Mark Rotteveel
Mark Rotteveel

Reputation: 109239

Support for BigInteger was added in JDBC 4.1 (Java 7), somehow I had missed that when I originally wrote this answer.

Specifically section 3.1 Overview of changes of the JDBC 4.1 specification states:

  • Additional Mappings to Table B-4, Mapping from Java Object to JDBC Types
    [..]
    Support was also added to map java.lang.BigInteger[sic] to JDBC BIGINT.
  • Additional Mappings to Table B-5, Performed by setObject and setNull between Java Object Types and Target JDBC Types
    [..]
    Allow conversion of java.lang.BigInteger[sic] to CHAR, VARCHAR, LONGVARCHAR, and BIGINT.

I'm not sure how well this is supported across drivers.

Original answer

The JDBC specification does not include support for BigInteger; you either need to use a different datatype (eg BigDecimal with scale 0), or find out if the PostgreSQL driver offers some implementation specific way to set a BigInteger value.

Upvotes: 5

Mircea Stanciu
Mircea Stanciu

Reputation: 3753

I had the same problem and I updated the driver from 9.3 to 42.2.2. Then worked fine

    <dependency>
        <groupId>org.postgresql</groupId>
        <artifactId>postgresql</artifactId>
        <version>${postgresql.version}</version>
    </dependency>

Upvotes: 0

Shirish Kota
Shirish Kota

Reputation: 31

You can use java.math.BigDecimal for conversion of BigInt. The below code should work:

public List<PersonInfo> select(String id) {

    BigDecimal bigDecId = new BigDecimal(id);
    JdbcTemplate select = new JdbcTemplate(dataSource);
    return select
        .query("SELECT * FROM PE.SUPPLIER_INPUT_DATA WHERE ID = ?",
                new Object[] { bigDecId },
                new PersonRowMapper());
}

Upvotes: 0

Jasper
Jasper

Reputation: 2409

I had the same problem, using Types.BIGINT as a refinement works. I used it in combination with BatchPreparedStatementSetter, this is simple and very readable:

 @Transactional
public void saveStuff(List<Foo> foos) {
    int batchSize = foos.size();

    String sql = "INSERT INTO db.foo " +
            "(sting_id, a_big_integer, bar, ..etc ) " +
            "VALUES (?, ?, ?, ..etc )";

        jdbcTemplate.batchUpdate(sql, new BatchPreparedStatementSetter() {
            @Override
            public void setValues(PreparedStatement ps, int i) throws SQLException {
                FeedEntry feedEntry = feedEntries.get(i);
                int index = 1;
                ps.setString(index++, foo.id());
                ps.setObject(index++, foo.getTheBigInteger(), Types.BIGINT);
                ps.setString(index++, foo.bar())
                //etc
            }

            @Override
            public int getBatchSize() {
                return foos.size();
            }
        });

}

Upvotes: 2

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