TiDB Weekly

Community

New contributors

tidb:

• hey-kong
• lizhenda

raft-rs:

• MaiCw4J

raft-prometheus:

• ekse

Call for participation

TiDB:

• Vectorize all the built-in functions
• Issues to solve

TiKV:

• Check code for common misspellings
• Issues to solve

Updates of the week

Progress

TiDB:

Last week, we landed 92 PRs in the TiDB repository.

• Release TiDB v2.1.17
• Support generating hints from physical plans
• Introduce the cascades adapter model and implement the handle range scan

TiKV and PD:

Last week, we landed 39 PRs in the TiKV and PD repositories.

• Release TiKV and PD v2.1.17
• Enable DoublySkiplist by default

Critical PRs

TiDB:

• Support generating hints from physical plans
• Implement the CheckTxnStatus API for the large transaction
• Introduce the cascades adapter model and implement the handle range scan
• Improve the row count estimation of IndexJoin's inner scan
• Support the unix_timestamp() function in partition pruning
• Fix the issue that MaxUint64 and MaxInt64 autoID are incorrectly allocated
• Fix the invalid snapshot cache under the pessimistic transaction

TiKV and PD:

• Enable DoublySkiplist by default
• Introduce PointGetter
• Support backup with the rate limit
• Fix the calculation of Region flow
• Fix the TiKV panic when the aggregation expr type is invalid

Upcoming TiDB events

• TiDB Hackathon 2019 (in Chinese)
• Paper Reading 0918 (in Chinese)