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feat: add log file caching layer #3440

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@roeap roeap commented May 17, 2025

Description

Adds an opinionated caching layer on top of object store that caches commit files read from the delta log. Here we focus on json files, as we cannot apply higher level caches for json within the kernel architecture.

Related Issue(s)

related: #3439

Documentation

Need to add an example to docs

@github-actions github-actions bot added the binding/rust Issues for the Rust crate label May 17, 2025
@roeap roeap force-pushed the delta-log-cache branch from 6e2d784 to c520f0e Compare May 17, 2025 09:09
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codecov bot commented May 17, 2025

Codecov Report

Attention: Patch coverage is 76.78571% with 13 lines in your changes missing coverage. Please review.

Project coverage is 74.18%. Comparing base (739f461) to head (d315062).

Files with missing lines Patch % Lines
python/src/lib.rs 0.00% 5 Missing ⚠️
crates/core/src/operations/mod.rs 83.33% 3 Missing ⚠️
crates/core/src/table/mod.rs 0.00% 3 Missing ⚠️
crates/core/src/operations/create.rs 66.66% 0 Missing and 1 partial ⚠️
crates/core/src/protocol/checkpoints.rs 83.33% 0 Missing and 1 partial ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #3440      +/-   ##
==========================================
- Coverage   74.23%   74.18%   -0.06%     
==========================================
  Files         150      150              
  Lines       44772    44775       +3     
  Branches    44772    44775       +3     
==========================================
- Hits        33237    33216      -21     
- Misses       9392     9395       +3     
- Partials     2143     2164      +21     

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@roeap roeap force-pushed the delta-log-cache branch from c520f0e to 39d5ad9 Compare May 17, 2025 10:23
@roeap roeap force-pushed the delta-log-cache branch from 39d5ad9 to 8546404 Compare July 4, 2025 11:20
@github-actions github-actions bot added the binding/python Issues for the Python package label Jul 4, 2025
@roeap roeap force-pushed the delta-log-cache branch from 8546404 to d315062 Compare July 4, 2025 11:30
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