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12 lines
551 B
MySQL
12 lines
551 B
MySQL
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-- This table stores the # of read comments for a person, on a post
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-- It can then be joined to post_aggregates to get an unread count:
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-- unread = post_aggregates.comments - person_post_aggregates.read_comments
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create table person_post_aggregates(
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id serial primary key,
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person_id int references person on update cascade on delete cascade not null,
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post_id int references post on update cascade on delete cascade not null,
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read_comments bigint not null default 0,
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published timestamp not null default now(),
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unique(person_id, post_id)
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);
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