55 lines
2.6 KiB
SQL
55 lines
2.6 KiB
SQL
-- 0046_channel_forum_topics: forum topic read model.
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--
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-- Topic ids are the channel service message ids produced by
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-- messages.createForumTopic. Messages stay single-copy in channel_messages;
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-- this table stores the bounded topic index/read counters TDesktop needs for
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-- messages.getForumTopics/getForumTopicsByID.
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CREATE TABLE IF NOT EXISTS channel_forum_topics (
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channel_id BIGINT NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
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topic_id INT NOT NULL,
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creator_user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE RESTRICT,
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title TEXT NOT NULL DEFAULT '',
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icon_color INT NOT NULL DEFAULT 0,
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icon_emoji_id BIGINT NOT NULL DEFAULT 0,
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title_missing BOOLEAN NOT NULL DEFAULT false,
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closed BOOLEAN NOT NULL DEFAULT false,
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hidden BOOLEAN NOT NULL DEFAULT false,
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pinned BOOLEAN NOT NULL DEFAULT false,
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pinned_order INT NOT NULL DEFAULT 0,
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date INT NOT NULL,
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top_message_id INT NOT NULL DEFAULT 0,
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read_inbox_max_id INT NOT NULL DEFAULT 0,
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read_outbox_max_id INT NOT NULL DEFAULT 0,
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unread_count INT NOT NULL DEFAULT 0,
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unread_mentions_count INT NOT NULL DEFAULT 0,
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unread_reactions_count INT NOT NULL DEFAULT 0,
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unread_poll_votes_count INT NOT NULL DEFAULT 0,
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deleted BOOLEAN NOT NULL DEFAULT false,
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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PRIMARY KEY (channel_id, topic_id),
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CONSTRAINT channel_forum_topics_title_check CHECK (title <> '' OR title_missing),
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CONSTRAINT channel_forum_topics_ids_check CHECK (topic_id > 0 AND top_message_id >= 0)
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) PARTITION BY HASH (channel_id);
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CREATE INDEX IF NOT EXISTS channel_forum_topics_page_idx
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ON channel_forum_topics (channel_id, pinned DESC, pinned_order DESC, date DESC, topic_id DESC)
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WHERE NOT deleted;
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CREATE INDEX IF NOT EXISTS channel_forum_topics_title_idx
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ON channel_forum_topics (channel_id, lower(title), date DESC, topic_id DESC)
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WHERE NOT deleted;
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DO $$
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DECLARE
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i int;
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BEGIN
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FOR i IN 0..63 LOOP
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EXECUTE format(
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'CREATE TABLE IF NOT EXISTS channel_forum_topics_p%s PARTITION OF channel_forum_topics FOR VALUES WITH (MODULUS 64, REMAINDER %s)',
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lpad(i::text, 2, '0'),
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i
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);
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END LOOP;
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END $$;
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