6 lines
364 B
SQL
6 lines
364 B
SQL
-- t_user_devices.id is a table-local AUTO_INCREMENT row key, not Snowflake.
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-- Business identity remains (user_id, device_id). Existing Snowflake values stay; new rows continue from MAX(id)+1.
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ALTER TABLE t_user_devices
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MODIFY 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)';
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