| title | category |
|---|---|
TiDB 1.0.3 Release Notes |
Releases |
On November 28, 2017, TiDB 1.0.3 is released with the following updates:
- Optimize the performance in transaction conflicts scenario
- Add the
TokenLimitoption in the config file - Output the default database in slow query logs
- Remove the DDL statement from query duration metrics
- Optimize the query cost estimation
- Fix the index prefix issue when creating tables
- Support pushing down the expressions for the Float type to TiKV
- Fix the issue that it is slow to add index for tables with discrete integer primary index
- Reduce the unnecessary statistics updates
- Fix a potential issue during the transaction retry
- Support adding more types of schedulers using API
- Fix the deadlock issue with the PD client
- Fix the issue that the wrong leader value is prompted for
NotLeader - Fix the issue that the chunk size is too large in the coprocessor
To upgrade from 1.0.2 to 1.0.3, follow the rolling upgrade order of PD -> TiKV -> TiDB.