23 lines
502 B
SQL
23 lines
502 B
SQL
-- 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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create materialized view clicks as
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select
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user_id,
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ad_id,
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click_timestamp,
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impression_timestamp
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from
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ad_source;
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