Weekly update in TiDB

Last week, we landed 46 PRs in the TiDB repositories.

Added

• Support SEPARATOR in the group_concat aggregate function.
• Support the BinaryJSON type.
• Add a config for the SQL parser to enable parsing syntax for window function.
• Support the http index MVCC interface.

Fixed

• Show the index column length if necessary in show create table statement.
• Clear the delta info when rolling back a transaction.
• Only set defaultValues in aggregation push down.
• Fix a bug when applying meets index join.

Improved

• Support analyzing all indices statements.
• Load timezone from TiKV when starting a new session.
• Support date_format push down.
• NewIndexLookUpJoin executor for Chunk.
• Attach the requiredProp info to physical plans.
• Support tls connection to pd and tikv.
• Support Chunk in executors:
  • DDLExec
  • CancelDDLJobsExec
  • ShowDDLExec
  • PrepareExec
  • CheckTableExec
  • SelectLockExec
  • ExplainExec
  • SetExecutor
  • ExistsExec
  • UpdateExec
  • JoinResultGenerator

Weekly update in TiSpark

Last week, we landed 10 PRs in the TiSpark repositories.

Fixed

• Fix the PD cache invalidation not synced for the TiSpark side.
• Fix the Region Request failure not synced with the TiSpark driver.
• Fix the inconsistent datatype mapping for Datetime type.
• Fix inconsistent datatype mapping for DOUBLE type.
• Fix not printing index name in plan.
• Fix the schema change that causes a SQL failure.
• Fix inconsistency of the timestamp unit.

Weekly update in TiKV and PD

Last week, we landed 14 PRs in the TiKV and PD repositories.

Added

• Coprocessor: support date_format.
• Pd/Client: support get_region_info.
• Worker: add pending capacity.
• Storage: add more fail points.

Fixed

• Tests: use the same RocksDB configuration as production.
• PD: fix the stale region info when overlapping.
• PD: fix tls for join.
• PD: fix the panic that the cluster status is nil.

Improved

• Update Prometheus.
• Use the lower case of logrus.
• Correct a typo.