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SELECT  tags.TagName
       ,COUNT(PostId) AS total_unique_posts
FROM PostTags pt
LEFT JOIN 
(
    SELECT  Id
           ,TagName
	FROM Tags
    WHERE LOWER(TagName) LIKE '%snowflake%'
        OR LOWER(TagName) LIKE '%airflow%'
) AS tags
    ON tags.id = pt.TagId
WHERE PostId IS NOT NULL
GROUP BY tags.TagName
ORDER BY total_unique_posts DESC

fork query

edited nov 29

created nov 29 anonymous