tidb-server v2.0.0-rc.1
·
471 commits
to release-2.0
since this release
- Support limiting the memory usage by a single SQL statement, to reduce the risk of OOM
- Support pushing the Stream Aggregate operator down to TiKV
- Support validating the configuration file
- Support obtaining the configuration of TiDB through HTTP API
- Compatible with more MySQL syntax in Parser
- Improve the compatibility with Navicat
- Improve the optimizer and extract common expressions with multiple OR conditions, to choose a better query plan
- Improve the optimizer and convert subqueries to Join operators in more scenarios, to choose a better query plan
- Resolve Lock in the Batch mode to increase the garbage collection speed
- Fix the length of Boolean field to improve compatibility
- Optimize the Add Index operation and give lower priority to all write and read operations, to reduce the impact on online business