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perf(db): 优化知识条目表索引配置
- 为 idx_dm_ki_relative_path 索引添加长度限制 (768) - 为 uk_dm_kd_set_path 唯一约束添加相对路径长度限制 (768) - 为 idx_dm_kd_relative_path 索引添加长度限制 (768) - 提升数据库查询性能和索引效率
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@@ -176,7 +176,7 @@ CREATE TABLE IF NOT EXISTS t_dm_knowledge_items (
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INDEX idx_dm_ki_valid_to (valid_to),
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INDEX idx_dm_ki_source_dataset (source_dataset_id),
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INDEX idx_dm_ki_source_file (source_file_id),
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INDEX idx_dm_ki_relative_path (relative_path)
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INDEX idx_dm_ki_relative_path (relative_path(768))
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) COMMENT='知识条目表(UUID 主键)';
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-- 知识条目目录表
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@@ -190,9 +190,9 @@ CREATE TABLE IF NOT EXISTS t_dm_knowledge_item_directories (
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created_by VARCHAR(255) COMMENT '创建者',
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updated_by VARCHAR(255) COMMENT '更新者',
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FOREIGN KEY (set_id) REFERENCES t_dm_knowledge_sets(id) ON DELETE CASCADE,
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UNIQUE KEY uk_dm_kd_set_path (set_id, relative_path),
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UNIQUE KEY uk_dm_kd_set_path (set_id, relative_path(768)),
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INDEX idx_dm_kd_set_id (set_id),
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INDEX idx_dm_kd_relative_path (relative_path)
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INDEX idx_dm_kd_relative_path (relative_path(768))
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) COMMENT='知识条目目录表(UUID 主键)';
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-- ===========================================
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