课程名称： 课程版本（101）+ 1.2 What’s an HTAP Database （HTAP 数据库简介）
学习时长：
1 小时
课程收获：
what HTAP、why HTAP
课程内容：
Before we begin
- Context: As the need of read-time analytics and HTAP is rising, this topic is an introduction of the concept of HTAP.
- Goal: After this session, audience will have a brief idea of what is HTAP
- Outline:
- Database evolution
- What does term HTAP means
- Why HTAP is needed and how it helps you
- TiDB HTAP architecture
- Real world scenarios
- Lab requirements (if needed): N/A
Why HTAP
- HTAP databse shine
- Simplify architecture
- Lower maintenence cost
- Empower read-time scenarios
- Improve business agility
Example
Sales Data Platform / Services
Difficulties
- Meeting the requirements from both sides is hard
- Scalability
- It’s easy to build a distributed AP database but TP is hard
- TP / AP at the same time
- Suporting both storage formats
- Avoiding workload interference
- Seamlessly integration
- Data synchronization
- Fresh data
- Scalability
How HTAP help you
- An overview of TiDB HTAP
- Goal
- Subtopics
- TiDB HTAP introduction
- Real world scenarios
- Key points
- Review of goal
TiDB HTAP Features
- A Scalable database
- Built for strict transactional use cases
- Proved at core finance business
- Equipped with powerful analytical engines
- Natural fit for datahub / read-time data application
What’s new in TiDB 4.0 HTAP
- Real-time updatable colummar engine
- Scalable row-wise and columnar engines
- Separated machines,no interference
- Consistent data replication
- Vectorized engine
- Smart selection between row and column formats
