pingcap/tidb

refactor largeNotNullSorter to use pqqsort

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#36,061 opened on Jul 9, 2022

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 (2 comments) (0 reactions) (1 assignee)Go (6,186 forks)batch import
help wantedtype/enhancement

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Description

it maybe need to refactor the struct and put colIDs32 and values into a struct. It is a bit difficult to refactor it.

Contributor guide

Research direction
Analyze the current largeNotNullSorter implementation and understand how to integrate pqqsort by grouping colIDs32 and values into a struct.
Tech stack
go
Domain
databases
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50