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tidb-server rc3
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@shenli shenli released this 20 Jun 10:59
· 19735 commits to master since this release
rc3
db8ff90
  • The following features are added or improved in the SQL query optimizer:
    • Support incremental statistics
    • Support the Merge Sort Join operator
    • Support the Index Lookup Join operator
    • Support the Optimizer Hint Syntax
    • Optimize the memory consumption of the Scan, Join, Aggregation operators
    • Optimize the Cost Based Optimizer (CBO) framework
    • Refactor Expression
  • Support more complete privilege management
  • DDL acceleration
  • Support using HTTP API to get the data distribution information of tables
  • Support using system variables to control the query concurrency
  • Add more MySQL built-in functions
  • Support using system variables to automatically split a big transaction into smaller ones to commit
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