14 lines
369 B
MySQL
14 lines
369 B
MySQL
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-- The number of clicks on the ad within one minute after the ad was shown.
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create materialized view m_click_statistic as
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select
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count(user_id) as clicks_count,
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ad_id
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from
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ad_source
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where
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click_timestamp is not null
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and impression_timestamp < click_timestamp
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and impression_timestamp + interval '1' minute >= click_timestamp
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group by
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ad_id;
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