2017-07-11Li SHENEngineering
This is the second one of three blogs to introduce TiDB internal.
ArchitectureTiKV
2017-07-11Li SHENEngineering
This is the first one of three blogs to introduce TiDB internal.
TiKVRaftTransaction
2017-05-27Siddon TangEngineering
This is the speech Siddon Tang gave at the 1st Rust Meetup in Beijing on April 16, 2017.
TiKVRust
2017-01-06PingCAPEngineering
The target audience of this document is the contributors in the TiDB community. The document aims to help them understand the TiDB project. It covers the system architecture, the code structure, and the execution process.
ArchitectureQuery execution
2016-12-07Fei HANEngineering
Subquery optimization, especially rewriting the correlated subquery, is a very difficult part in SQL query optimization. To be compatible with MySQL, TiDB enables users to write subqueries anywhere they want. For those subqueries that are not correlated, which are also called uncorrelated subqueries, TiDB evaluates in advance; for those correlated subqueries, TiDB removes the correlations as much as possible. For example, TiDB can rewrite a correlated subquery to `SemiJoin`. This article is focused on introducing the correlated subquery optimization methods in TiDB.
Query execution
2016-11-17Ivan YangEngineering
This document gives an overview of MVCC implementation in TiKV.
TiKVTransaction
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