修改flink-sql-connector-kafka_2.11-1.14.3源码类：
org.apache.flink.streaming.connectors.kafka.table.KafkaDynamicSource
GROUP_OFFSET修改为：
    case GROUP_OFFSETS:
        //kafkaSourceBuilder.setStartingOffsets(OffsetsInitializer.committedOffsets());
        String offsetResetConfig =
        properties.getProperty(
        ConsumerConfig.AUTO_OFFSET_RESET_CONFIG,
        OffsetResetStrategy.NONE.name());
        OffsetResetStrategy offsetResetStrategy = getResetStrategy(offsetResetConfig);
        kafkaSourceBuilder.setStartingOffsets(
        OffsetsInitializer.committedOffsets(offsetResetStrategy));
        break;

private OffsetResetStrategy getResetStrategy(String offsetResetConfig) {
        return Arrays.stream(OffsetResetStrategy.values())
        .filter(ors -> ors.name().equals(offsetResetConfig.toUpperCase(Locale.ROOT)))
        .findAny()
        .orElseThrow(
        () ->
        new IllegalArgumentException(
        String.format(
        "%s can not be set to %s. Valid values: [%s]",
        ConsumerConfig.AUTO_OFFSET_RESET_CONFIG,
        offsetResetConfig,
        Arrays.stream(OffsetResetStrategy.values())
        .map(Enum::name)
        .map(String::toLowerCase)
        .collect(Collectors.joining(",")))));
}