如何在Snowflake JDBC中执行批处理更新

我正在尝试对PreparedStatement执行snowflake批处理更新，但运气不佳。我能够执行每个单独的查询（preparedStatement.executeQuery（）），以便查询工作。但一旦我切换到batchUpdate（），我就会得到一个异常，它似乎没有设置我的变量（被抛出insertEventStatement.executeBatch（））

有人看到我遗漏了什么吗

public void insertBotEvents(List<SnowflakeRecord> snowflakeRecords) throws SQLException
{
    try
    {
        PreparedStatement insertEventStatement = connection.prepareStatement(INSERT_EVENT);
        PreparedStatement insertMetaEventStatement = connection.prepareStatement(INSERT_META_EVENT);
        for (SnowflakeRecord snowflakeRecord : snowflakeRecords)
        {
            insertEventStatement.setString(1, snowflakeRecord.getUserId());
            insertEventStatement.setString(2, snowflakeRecord.getSessionId());
            insertEventStatement.setString(3, snowflakeRecord.getEventTime().toString());
            insertEventStatement.setString(4, snowflakeRecord.getEventType());
            insertEventStatement.setString(5, snowflakeRecord.getEventValue());
            insertEventStatement.setString(6, snowflakeRecord.getAdditionalInfo());
            insertEventStatement.setString(7, snowflakeRecord.getAffiliateName());

            System.out.println("\nINSERTING NEW RECORD: \n" + snowflakeRecord);

            insertEventStatement.addBatch();

            if (snowflakeRecord.getSmVuiEventDto() != null && snowflakeRecord.getSmVuiEventDto().getParameters() != null)
            {
                for (ParametersDto parametersDto : snowflakeRecord.getSmVuiEventDto().getParameters())
                {

                    insertMetaEventStatement.setString(1, snowflakeRecord.getSmVuiEventDto().getName());
                    insertMetaEventStatement.setString(2, parametersDto.getName());
                    insertMetaEventStatement.setString(3, parametersDto.getValue());
                    insertMetaEventStatement.setString(4, snowflakeRecord.getUserId());
                    insertMetaEventStatement.setString(5, snowflakeRecord.getSessionId());
                    insertMetaEventStatement.setString(6, snowflakeRecord.getEventTime().toString());
                    insertMetaEventStatement.setString(7, snowflakeRecord.getEventType());
                    insertMetaEventStatement.setString(8, snowflakeRecord.getEventValue());
                    insertMetaEventStatement.setString(9, snowflakeRecord.getAdditionalInfo());

                    insertMetaEventStatement.addBatch();
                }
            }
        }
        insertEventStatement.executeBatch();
        insertMetaEventStatement.executeBatch();
        System.out.println("\nCommitting changes to snowflake.");
        connection.commit();
    }
    catch (Exception e)
    {
        connection.rollback();
        System.err.println("Unable to execute SQL. Rolling back snowflake import");
        e.printStackTrace();
        throw e;
    }

}

---

编辑：显然，在我使用的JDBC版本（3.0.18）中没有它，但在最近的一个版本中添加了它（）。如果它不起作用，我将进一步更新。

快速观察，我没有发现任何错误。您能否联系Snowflake支持部门并在跟踪中提供您的JDBC日志

如果不知道如何启用日志记录，请参阅

---

另外，如果您可以提供查询id，我可以快速查看

刚刚确认Snowflake目前不支持在包含子查询的INSERT语句中提供绑定数组，但我们正在研究它。

谢谢您提供的信息。你知道什么时候发布吗？我目前没有太多的数据被发送。但是，我预计很快会有大量数据，根据我运行的测试，单独执行查询是不可行的。还是有更好的方式上传这些数据？应该在下周发布。但是，实现仍然是客户端循环，并单独执行查询。如果要加载大量数据，则应考虑复制命令。

public void insertBotEvents(List<SnowflakeRecord> snowflakeRecords) throws SQLException
{
    try
    {
        PreparedStatement insertEventStatement = connection.prepareStatement(INSERT_EVENT);
        PreparedStatement insertMetaEventStatement = connection.prepareStatement(INSERT_META_EVENT);
        for (SnowflakeRecord snowflakeRecord : snowflakeRecords)
        {
            insertEventStatement.setString(1, snowflakeRecord.getUserId());
            insertEventStatement.setString(2, snowflakeRecord.getSessionId());
            insertEventStatement.setString(3, snowflakeRecord.getEventTime().toString());
            insertEventStatement.setString(4, snowflakeRecord.getEventType());
            insertEventStatement.setString(5, snowflakeRecord.getEventValue());
            insertEventStatement.setString(6, snowflakeRecord.getAdditionalInfo());
            insertEventStatement.setString(7, snowflakeRecord.getAffiliateName());

            System.out.println("\nINSERTING NEW RECORD: \n" + snowflakeRecord);

            insertEventStatement.addBatch();

            if (snowflakeRecord.getSmVuiEventDto() != null && snowflakeRecord.getSmVuiEventDto().getParameters() != null)
            {
                for (ParametersDto parametersDto : snowflakeRecord.getSmVuiEventDto().getParameters())
                {

                    insertMetaEventStatement.setString(1, snowflakeRecord.getSmVuiEventDto().getName());
                    insertMetaEventStatement.setString(2, parametersDto.getName());
                    insertMetaEventStatement.setString(3, parametersDto.getValue());
                    insertMetaEventStatement.setString(4, snowflakeRecord.getUserId());
                    insertMetaEventStatement.setString(5, snowflakeRecord.getSessionId());
                    insertMetaEventStatement.setString(6, snowflakeRecord.getEventTime().toString());
                    insertMetaEventStatement.setString(7, snowflakeRecord.getEventType());
                    insertMetaEventStatement.setString(8, snowflakeRecord.getEventValue());
                    insertMetaEventStatement.setString(9, snowflakeRecord.getAdditionalInfo());

                    insertMetaEventStatement.addBatch();
                }
            }
        }
        insertEventStatement.executeBatch();
        insertMetaEventStatement.executeBatch();
        System.out.println("\nCommitting changes to snowflake.");
        connection.commit();
    }
    catch (Exception e)
    {
        connection.rollback();
        System.err.println("Unable to execute SQL. Rolling back snowflake import");
        e.printStackTrace();
        throw e;
    }

}

private static final String INSERT_EVENT =
        "INSERT INTO EVENT " +
                "(USER_ID, " +
                " SESSION_ID, " +
                " EVENT_DATETIME, " +
                " EVENT_TYPE, " +
                " EVENT_VALUE, " +
                " ADDITIONAL_INFO, " +
                " AFFILIATE_ID " +
                ") " +
                "SELECT " +
                " ?, " +
                " ?, " +
                " ?, " +
                " ?, " +
                " ?, " +
                " ?, " +
                " AFFILIATE_ID " +
                "FROM AFFILIATE_LOOKUP " +
                "WHERE AFFILIATE_NAME = ?";

private static final String INSERT_META_EVENT =
        "INSERT INTO EVENT_META " +
        "(EVENT_ID, " +
        "   META_TYPE, " +
        "   META_NAME, " +
        "   META_VALUE " +
        ") " +
        "SELECT EVENT_ID, ?, ?, ? " +
        "FROM SM_VUI_EVENT " +
        "WHERE USER_ID=? AND " +
        "   SESSION_ID=? AND " +
        "   EVENT_DATETIME=? AND " +
        "   EVENT_TYPE=? AND " +
        "   EVENT_VALUE=? AND " +
        "   ADDITIONAL_INFO=?";