LEFT JOIN 与 GROUP BY 不能简单地进行关联，左连接会失效的

SELECT

    tnpf.id,

    tnpf.news_id,

    tnpf.handle_status,

    tnpf.publish_status,

    tnpf.create_time,

    tnpf.updater_id,

    tnpf.update_time,

    tnpf.publish_user_id,

    tnpf.publish_date,

    tni.src_publish_date,

    tni.title,

    tni.ds_source_name,

    tni.media_source,

    tni.ds_news_columns,

    tni.author,

    tni.`level` AS info_level,

    tni.ds_source_type,

    tnpf.pub_sentiment_news_type

FROM

    tbm_news_popular_feelings tnpf,

    tbm_news_info tni

LEFT JOIN (

    SELECT

        news_id

    FROM

        tbm_extension_tag extension_tag

    WHERE

        1 = 1

    AND extension_tag.tag_type =1

    GROUP BY

        news_id

) t1 ON t1.news_id = tni.id

WHERE

    tnpf.news_id = tni.id

AND tnpf.create_time BETWEEN '2021-03-01 00:00:00'

AND '2021-03-31 23:59:59'

AND tnpf.handle_status = 0

ORDER BY

    tnpf.priority DESC,

    tnpf.create_time DESC

LIMIT 0,10;