« Changelog History


tidb v2.1.6 Release Notes

Release Date: 2019-03-15 // about 5 years ago

  • ⚡️ SQL Optimizer/Executor

    • ⚡️ Optimize planner to select the outer table based on cost when both tables are specified in Hint of TIDB_INLJ #9615
    • 🛠 Fix the issue that IndexScan cannot be selected correctly in some cases #9587
    • 🛠 Fix incompatibility with MySQL of check in the agg function in subqueries #9551
    • 👉 Make show stats_histograms only output valid columns to avoid panics #9502 ### Server
    • 👌 Support the log_bin variable to enable/disable Binlog #9634
    • ➕ Add a sanity check for transactions to avoid false transaction commit #9559
    • 🛠 Fix the issue that setting variables may lead to panic #9539

    DDL

    • 🛠 Fix the issue that the Create Table Like statement causes panic in some cases #9652
    • Enable the AutoSync feature of etcd clients to avoid connection issues between TiDB and etcd in some cases #9600