-- 仅重命名 V16 固定索引，不改变数据。
ALTER TABLE tplus_source_heads RENAME INDEX uk_tplus_heads_source_entity_id TO uk_tplus_source_heads_source_entity_id;
ALTER TABLE tplus_source_heads RENAME INDEX idx_tplus_heads_batch_entity TO idx_tplus_source_heads_batch_entity;
ALTER TABLE tplus_source_links RENAME INDEX uk_tplus_links_source_entity_id TO uk_tplus_source_links_source_entity_id;
ALTER TABLE tplus_source_links RENAME INDEX uk_tplus_links_entity_target TO uk_tplus_source_links_entity_target;