datafusion-contrib/liquid-cache

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Pushdown cache for DataFusion

Stars: 452
Forks: 51
Open beginner issues: 0
Indexed issues: 78
Avg merge: 3h 10m
Merged PRs (30d): 12

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

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78 open issues indexed

Selective Column Admission for Improved Cache Efficiency Under Constrained Memory Budgets Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

datafusion-contrib/liquid-cache#500 · 4 comments · Opened May 21, 2026
Support a RAM-only mode (no disk spill) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

datafusion-contrib/liquid-cache#499 · Opened May 7, 2026
Does not build on MacOS due to `io_uring` Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

datafusion-contrib/liquid-cache#488 · 6 comments · 1 reaction · Opened Apr 18, 2026
How to manage disk cache (t4) growth in local mode? Open

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

datafusion-contrib/liquid-cache#487 · 6 comments · 4 reactions · Opened Apr 3, 2026
Support cache pass-through for selective scans Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

datafusion-contrib/liquid-cache#485 · 2 comments · 1 reaction · Opened Apr 1, 2026
Current focus of LiquidCache: reliability Open

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

datafusion-contrib/liquid-cache#477 · 2 comments · Opened Feb 20, 2026
Collecting Data For Data Pruning Hierarchy Metrics Open

datafusion-contrib/liquid-cache#473 · 1 assignee · Opened Jan 22, 2026
Refactor & formal verify fsst buffer usage Open

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

datafusion-contrib/liquid-cache#462 · Opened Dec 13, 2025
[Bug] TPC-DS has some failed test Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 30/100

datafusion-contrib/liquid-cache#450 · 1 comment · Opened Dec 3, 2025
Support Extraction for TimeStamp Open

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

datafusion-contrib/liquid-cache#449 · 6 comments · Opened Dec 1, 2025
[Epic] Support geospatial data Open

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

datafusion-contrib/liquid-cache#441 · Opened Nov 19, 2025
Pushdown predicates that contains `variant_get` Open

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

datafusion-contrib/liquid-cache#440 · Opened Nov 19, 2025
[Epic] Struct shredding support Open

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

datafusion-contrib/liquid-cache#439 · Opened Nov 19, 2025
Investigate Stack Overflow benchmark result mismatch Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

datafusion-contrib/liquid-cache#428 · Opened Nov 10, 2025
[Epic] Support Variant Open

datafusion-contrib/liquid-cache#426 · 1 comment · 1 assignee · Opened Nov 9, 2025
Investigate performance regressions Open

datafusion-contrib/liquid-cache#420 · 3 comments · 1 reaction · 1 assignee · Opened Nov 4, 2025
[Possible bug] Inconsistent disk cache size across runs Open

datafusion-contrib/liquid-cache#408 · 1 assignee · Opened Oct 24, 2025
[Discussion] LiquidCache support for only InMemory transcoding Open

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

datafusion-contrib/liquid-cache#405 · 4 comments · Opened Oct 22, 2025
[Epic] Better support for DateTime Open

datafusion-contrib/liquid-cache#393 · 3 comments · 1 reaction · 1 assignee · Opened Oct 14, 2025
[Epic] Support Variant type Open

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

datafusion-contrib/liquid-cache#392 · 2 comments · Opened Oct 13, 2025
Squeeze for FixedLenArray Open

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

datafusion-contrib/liquid-cache#389 · Opened Oct 9, 2025
Investigate ways to using io uring in read path Open

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

datafusion-contrib/liquid-cache#385 · Opened Sep 28, 2025
Explore linear regression for byte-view array's offset Open

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

datafusion-contrib/liquid-cache#384 · Opened Sep 28, 2025
Write more verifications for unsafe code Open

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

datafusion-contrib/liquid-cache#378 · Opened Sep 23, 2025
Implement a fast, concurrent, safe doubly linked list Open

datafusion-contrib/liquid-cache#372 · 1 comment · 1 assignee · Opened Sep 17, 2025
Support dynamic filters in LiquidCache Open

datafusion-contrib/liquid-cache#371 · 1 assignee · Opened Sep 17, 2025
Create Public BI benchmark Open

datafusion-contrib/liquid-cache#357 · 2 comments · 1 assignee · Opened Sep 11, 2025
Create JOB benchmark Open

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

datafusion-contrib/liquid-cache#356 · 1 comment · Opened Sep 11, 2025
String fingerprints Open

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

datafusion-contrib/liquid-cache#349 · 1 comment · 2 reactions · Opened Sep 4, 2025
Add more real world benchmark Open

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

datafusion-contrib/liquid-cache#338 · Opened Aug 25, 2025
API to check the liquidCache entries Open

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

datafusion-contrib/liquid-cache#330 · 1 comment · 1 reaction · Opened Aug 16, 2025
Move dashboard to current repo Open

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

datafusion-contrib/liquid-cache#319 · Opened Aug 1, 2025
Dashboard throws an error at benchmark Open

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

datafusion-contrib/liquid-cache#317 · 2 comments · Opened Jul 31, 2025
[BUG] Getting duplicate values Open

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

datafusion-contrib/liquid-cache#312 · 2 comments · Opened Jul 23, 2025
Add entry_size tracking to trace parquet files. Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

datafusion-contrib/liquid-cache#308 · Opened Jul 18, 2025
[Epic] Accurate performance tracking Open

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

datafusion-contrib/liquid-cache#302 · 1 comment · Opened Jul 15, 2025
[Epic] FSSTView in LiquidCache Open

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

datafusion-contrib/liquid-cache#301 · 1 reaction · Opened Jul 15, 2025
Cache Eviction strategy for disk storage Open

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

datafusion-contrib/liquid-cache#264 · 1 comment · Opened Jun 16, 2025
Optimize filter operations on integer arrays Open

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

datafusion-contrib/liquid-cache#256 · 5 comments · Opened Jun 14, 2025
[Performance] High cache latency for high selectivity queries because of filter pushdown Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

datafusion-contrib/liquid-cache#237 · 36 comments · Opened Jun 4, 2025
Encoding in Rust Open

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

datafusion-contrib/liquid-cache#235 · Opened May 30, 2025
Test object store interactions Open

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

datafusion-contrib/liquid-cache#234 · Opened May 30, 2025
Implement io monitoring primitives Open

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

datafusion-contrib/liquid-cache#233 · Opened May 29, 2025
Implement threadpool based io_uring Open

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

datafusion-contrib/liquid-cache#232 · Opened May 29, 2025
API to pre warm specific columns in liquid cache Open

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

datafusion-contrib/liquid-cache#231 · 1 comment · Opened May 29, 2025
Project idea: How good is well-configured parquet compared to proprietary file formats? Open

good first issue help wanted

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

datafusion-contrib/liquid-cache#227 · 58 comments · 9 reactions · Opened May 27, 2025
Client should return error when server crashes Open

help wanted

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

datafusion-contrib/liquid-cache#215 · Opened May 21, 2025
Support substrait as query plan representation Open

help wanted

datafusion-contrib/liquid-cache#202 · 7 comments · 1 assignee · Opened May 7, 2025
Cache tracing instrumentation Open

help wanted

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

datafusion-contrib/liquid-cache#199 · 1 comment · Opened May 6, 2025
Support pushing down row selection Open

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

datafusion-contrib/liquid-cache#171 · 1 reaction · Opened Apr 21, 2025

datafusion-contrib/liquid-cache

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