64 lines
2.9 KiB
SQL
64 lines
2.9 KiB
SQL
-- Junction / mapping tables get a table-local AUTO_INCREMENT row id.
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-- Business uniqueness stays UNIQUE (same columns as the old composite PK).
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-- Snowflake PKs (t_users / t_messages / t_conversations / moments posts) are unchanged.
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ALTER TABLE t_user_emails
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 email' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_email (email);
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ALTER TABLE t_p2p_conversations
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 (user_small, user_big)' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_p2p_users (user_small, user_big);
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ALTER TABLE t_conversation_members
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 (conversation_id, user_id)' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_conversation_members (conversation_id, user_id);
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ALTER TABLE t_device_sync_cursors
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 (user_id, device_id)' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_user_device (user_id, device_id);
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ALTER TABLE t_group_members
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 (group_id, user_id)' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_group_members (group_id, user_id);
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ALTER TABLE t_message_deletes
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 (user_id, msg_id)' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_user_msg (user_id, msg_id);
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ALTER TABLE t_moment_audience
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 (post_id, peer_id)' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_post_peer (post_id, peer_id);
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ALTER TABLE t_moment_likes
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 (post_id, user_id)' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_post_user (post_id, user_id);
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ALTER TABLE t_moment_settings
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 user_id' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_user_id (user_id);
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ALTER TABLE t_moment_hides
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DROP PRIMARY KEY,
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ADD COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增，仅内部用；业务唯一键是 (user_id, peer_id)' FIRST,
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ADD PRIMARY KEY (id),
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ADD UNIQUE KEY uk_user_peer (user_id, peer_id);
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