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  • Mon, Oct 30, 2017

Weekly update in TiDB

Last week, we landed 52 PRs in the TiDB repositories.

Added

  • Support the window function syntax.

Fixed

  • Fix an issue when the values builtin function meets the null value.
  • Support the signed field option for the numeric type.
  • Fix an issue of index reader.
  • Fix an issue that the binlog client is not initialized correctly.
  • Correct the schema type of ShowStmt.
  • The default value length for Join should be changed for column pruning.
  • Add retry for dialPumpClient.
  • Parse but ignore the REPLICATION CLIENT/SLAVE, USAGE privileges in the GRANT statement.
  • Fix an issue with visibility check.
  • Fix an issue with renaming tables.
  • Parse PARTITION BY RANGE COLUMNS.
  • Support the straight_join syntax.
  • Support the row_count built-in function.
  • Load the column histograms as needed.
  • Start safePointChecker before running a worker.
  • Truncate the information field for show processlist and support show full processlist.

Improved

  • Build the prepared statement plan in the Optimization phase.
  • Support the ALTER TABLE t ENGINE = 'string' syntax.
  • Remove reorgTableDeleteLimit.
  • Fold the true item in the CNF predicator.
  • Use max uint64 as the start timestamp for the ANALYZE statement .
  • Improve merge join to support all join types.
  • Add highlight to log.
  • Add the Row interface.
  • Simple improvement for range calculation for Primary Key.
  • Change the behavior of the the in function.
  • Support a plan cache for prepared statements.
  • Introduce Chunk to replace the current datum slice Row.
  • Introducing OpenTracing into TiDB:
    • For two phase commit.
    • Tracing config and gRPC interceptor middleware.

Weekly update in TiSpark

Added

  • Add redundant aggregation elimination.

Fixed

  • Fix meta deserialize overflow.
  • Fix broken integration test.
  • Fix potential time type NPE.
  • Fix and upgrade Bazel for CI.
  • Fix test dependency in CI.

New Contributor

  • Ry

Weekly update in TiKV

Last week, We landed 21 PRs in the TiKV repositories.

Added

  • Add adjacent region balancing scheduler.
  • Add WAL bytes per the sync configuration.
  • Flow control based on total writing bytes.
  • Implement the in function for coprocessor.
  • Filter the stores with lots of pending peers when balancing.
  • Add region and hot region scheduling API.
  • Record the approximate size of a store in PD.

Fixed

  • raftstore: fix an issue with stale peer check.
  • Record snapshot metrics in SCHED_STAGE_COUNTER_VEC.
  • Fix the illegal JSON format in the hotspot/stores API.

Improved

  • Inline get_limit_at_size.
  • Group the metrics by namespaces.
  • Document defer macro LIFO behavior.
  • Remove redundant verbose KV for coordinator.
  • Adjust table ID calculation.
  • Set stack size to 10 MB for the coprocessor threads.

New contributor

  • odeits

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