24 lines
876 B
SQL
24 lines
876 B
SQL
-- Add denormalized query keys. Ignored when 0011 already created the columns.
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ALTER TABLE private_message
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ADD COLUMN receiver_id BIGINT NOT NULL DEFAULT 0 COMMENT '接收者 user_id；系统消息为 0';
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ALTER TABLE private_message
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ADD KEY idx_receiver_id (receiver_id, id);
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UPDATE private_message pm
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INNER JOIN p2p_conversations p ON p.conversation_id = pm.conversation_id
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SET pm.receiver_id = IF(pm.sender_id = p.user_small, p.user_big, IF(pm.sender_id = p.user_big, p.user_small, 0))
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WHERE pm.receiver_id = 0 AND pm.sender_id <> 0;
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ALTER TABLE group_message
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ADD COLUMN group_id BIGINT NOT NULL DEFAULT 0 COMMENT '群号 groups.id，便于按群查询';
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ALTER TABLE group_message
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ADD KEY idx_group_id (group_id, id);
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UPDATE group_message gm
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INNER JOIN `groups` g ON g.conversation_id = gm.conversation_id
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SET gm.group_id = g.id
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WHERE gm.group_id = 0;
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