TimelyDataflow/differential-dataflow

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An implementation of differential dataflow using timely dataflow on Rust.

Stars: 3k
Forks: 211
Open beginner issues: 0
Indexed issues: 90
Avg merge: 10h 42m
Merged PRs (30d): 34

Dominant language: Rust
License: MIT
Last GitHub push: Jul 29, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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90 open issues indexed

Export timely dataflow Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

TimelyDataflow/differential-dataflow#190 · 2 reactions · Opened Jul 22, 2019
Test data for dogs^3 Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#182 · 1 comment · Opened Jun 21, 2019
Copy-paste error in the description of `validate` Open

Difficulty 1/5 Under an hour Newbie friendliness 68/100

TimelyDataflow/differential-dataflow#181 · 1 comment · Opened Jun 20, 2019
Compilation time Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#178 · 4 comments · Opened May 20, 2019
Questions about delta-queries Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

TimelyDataflow/differential-dataflow#175 · 17 comments · Opened May 7, 2019
Figuring out where operators spend time Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#171 · 2 comments · Opened Apr 29, 2019
`distinguish_since` is a terror Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#168 · 2 reactions · Opened Apr 25, 2019
Profiling CPU usage of differential programs Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#166 · 12 comments · Opened Apr 9, 2019
Question: what can differential dataflow be used for? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

TimelyDataflow/differential-dataflow#154 · 4 comments · Opened Mar 8, 2019
Not able to build the server Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#153 · 2 comments · Opened Mar 6, 2019
Understanding memory footprint of a simple recursive program Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#151 · 3 comments · Opened Mar 2, 2019
Possible minor perf bug in `work` Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

TimelyDataflow/differential-dataflow#148 · Opened Feb 25, 2019
Interactive: Support recursive queries Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#140 · Opened Feb 16, 2019
Interactive: Add `consolidate` command Open

easy

Difficulty 3/5 1-2 days Newbie friendliness 35/100

TimelyDataflow/differential-dataflow#139 · Opened Feb 15, 2019
Interactive: Implement Projekt Open

warm-up

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TimelyDataflow/differential-dataflow#138 · Opened Feb 15, 2019
Differential 0.9 timeline Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

TimelyDataflow/differential-dataflow#135 · 7 comments · Opened Feb 7, 2019
lots of questions about df-dataflow doc Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#127 · 5 comments · Opened Jan 10, 2019
Is this the most efficient way to do a left join? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#121 · 7 comments · Opened Dec 7, 2018
Error messages can be confusing Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#105 · 1 comment · Opened May 12, 2018
What is the right way to read out a collection? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#104 · 9 comments · Opened May 3, 2018
Remove `distinguish_since` capability Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#90 · 8 comments · 1 reaction · Opened Nov 21, 2017
Relax requirements of `Diff` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#84 · 3 comments · Opened Nov 1, 2017
Consider LSM for `operators::ValueHistory` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#82 · Opened Sep 19, 2017
Implement `JoinGe` / `JoinLe` Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

TimelyDataflow/differential-dataflow#80 · Opened Sep 11, 2017
Implement a JoinTotal trait and operators Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#77 · Opened Aug 11, 2017
Implement a GroupTotal trait and operators Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#76 · Opened Aug 11, 2017
Add traits and operators for totally ordered timestamps Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#74 · Opened Aug 11, 2017
Operations on sorted collections Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

TimelyDataflow/differential-dataflow#65 · 1 comment · Opened Jun 14, 2017
The problem of implementation examples Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

TimelyDataflow/differential-dataflow#63 · 19 comments · Opened May 26, 2017
Insertion sort for consolidation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#49 · Opened May 4, 2017
Description bounds could have type `Antichain`. Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

TimelyDataflow/differential-dataflow#39 · Opened Apr 13, 2017
Implement indices for Traces Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#38 · Opened Apr 12, 2017
Use descriptions for compaction Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#37 · Opened Apr 12, 2017
Spec out Trace Adapters? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#36 · 2 comments · Opened Apr 12, 2017
Specialize Spine for default times Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

TimelyDataflow/differential-dataflow#35 · 1 comment · Opened Apr 12, 2017
Small batches merge awkwardly Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#31 · Opened Apr 12, 2017
A `top_k` operator can be implemented more efficiently Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

TimelyDataflow/differential-dataflow#29 · Opened Apr 12, 2017
The `group` operator is insane Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

TimelyDataflow/differential-dataflow#28 · 1 comment · Opened Apr 12, 2017
Query2 ! Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TimelyDataflow/differential-dataflow#6 · 2 comments · Opened Feb 24, 2016
Relicense under dual MIT/Apache-2.0 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

TimelyDataflow/differential-dataflow#3 · 2 comments · Opened Jan 10, 2016

TimelyDataflow/differential-dataflow

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