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roadmap: update TiDB roadmap #912

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Sep 30, 2018
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roadmap: update TiDB roadmap #912

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6fed2a3
update roadmap
coocood Sep 30, 2018
a2d310d
remove empty line
coocood Sep 30, 2018
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19 changes: 14 additions & 5 deletions ROADMAP.md
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Expand Up @@ -9,29 +9,38 @@ category: Roadmap

- [ ] 优化器
- [x] 重构 Ranger
- [ ] 代价模型优化
- [x] 代价模型优化
- [ ] Cascades model planner
- [ ] Join Reorder
- [ ] 统计信息
- [x] 基于 Query Feedback 动态更新统计信息
- [x] 自动 Analyze
- [ ] 提升 Row Count 估算精度
- [x] 提升 Row Count 估算精度
- [ ] 执行引擎
- [ ] 下推 Projection 到 Coprocessor
- [ ] 优化 HashJoin 算子执行速度
- [x] 优化 HashJoin 算子执行速度
- [ ] 算子并行化
- [x] 并行 Projection
- [ ] 并行聚合
- [x] 并行聚合
- [ ] 并行 Sort
- [x] Compact Row Format，节省内存占用
- [ ] File Sort
- [ ] View
- [ ] 窗口函数
- [ ] Common Table Expression
- [ ] 分区表
- [x] Range 分区
- [ ] Hash 分区
- [ ] 聚簇索引
- [ ] 新的 storage row format
- [ ] Query Ttracing
- [ ] DDL 改进
- [x] Add Index 加速
- [ ] 并行 DDL
- [x] 并行 DDL
- [ ] 支持锁表
- [ ] 支持改变 column 类型
- [ ] 支持修改主键
- [ ] 支持一条语句中多个 DDL 操作
- [ ] 支持 `utf8_general_ci` collation

## TiKV:
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