JDBC Driver patch (ResultSetMetaData.java)

The following patch defines the method getColumnClassName(), currently
throwing an exception.

450a451,508
> /*
> The following data type mapping came from ../Field.java.
>
> "int2",
> "int4","oid",
> "int8",
> "cash","money",
> "numeric",
> "float4",
> "float8",
> "bpchar","char","char2","char4","char8","char16",
> "varchar","text","name","filename",
> "bool",
> "date",
> "time",
> "abstime","timestamp"
>
> Types.SMALLINT,
> Types.INTEGER,Types.INTEGER,
> Types.BIGINT,
> Types.DOUBLE,Types.DOUBLE,
> Types.NUMERIC,
> Types.REAL,
> Types.DOUBLE,
> Types.CHAR,Types.CHAR,Types.CHAR,Types.CHAR,Types.CHAR,Types.CHAR,
> Types.VARCHAR,Types.VARCHAR,Types.VARCHAR,Types.VARCHAR,
> Types.BIT,
> Types.DATE,
> Types.TIME,
> Types.TIMESTAMP,Types.TIMESTAMP
> */
>
> int sql_type = getField(column).getSQLType();
>
> switch (sql_type)
> {
> case Types.BIT:
> return("java.lang.Boolean");
> case Types.SMALLINT:
> return("java.lang.Integer");
> case Types.INTEGER:
> return("java.lang.Integer");
> case Types.BIGINT:
> return("java.lang.Long");
> case Types.NUMERIC:
> return("java.math.BigDecimal");
> case Types.REAL:
> return("java.lang.Float");
> case Types.DOUBLE:
> return("java.lang.Double");
> case Types.CHAR:
> case Types.VARCHAR:
> return("java.lang.String");
> case Types.DATE:
> case Types.TIME:
> case Types.TIMESTAMP:
> return("java.sql.Timestamp");
> default:
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> }