pingcap / pingcap/tiflash

Support fast scan on TiFlash

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#5,252 1 comment 0 reactions 0 assignees View on GitHub

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type/enhancement
Dominant language
C++
Stars
1k
Forks
423
Avg merge
1d 15h
Merged PRs (30d)
24

Description

Enhancement

We provide a brand new mode called "fast scan" for TiFlash, to provide better query performance with a small loss of data consistency and timeliness.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no files, tests, or entry points. Start by locating the existing TiFlash scan implementation and any documentation for scan consistency and timeliness; define the fast-scan behavior and its performance-versus-consistency tradeoff before implementation. Done means TiFlash supports the requested fast-scan mode with coverage for its documented behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
databases
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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