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Do not rename data.table.dll to data_table.dll#7777

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aitap wants to merge 2 commits into
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no_rename_dll
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Do not rename data.table.dll to data_table.dll#7777
aitap wants to merge 2 commits into
masterfrom
no_rename_dll

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@aitap aitap commented Jun 6, 2026

According to old versions of WRE, R automatically replaces dots with understores in R_init_<DLL name>() since R-2.15, so renaming is no longer necessary. This also has the side effect of working around the behaviour change from R r90101 and producing correct source tarballs on Windows again: for now, after temporarily installing the package, R CMD build cleans up data.table.dll, but misses data_table.dll.

Since R-2.15, R automatically replaces dots with understores in
R_init_<DLL name>(...), so renaming is no longer necessary. This also
has the side effect of working around the behaviour change from R r90101
and producing correct source tarballs on Windows again: R CMD build
cleans up data.table.dll, but misses data_table.dll.
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codecov Bot commented Jun 6, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.85%. Comparing base (82380b2) to head (4a242e5).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files
@@           Coverage Diff           @@
##           master    #7777   +/-   ##
=======================================
  Coverage   98.85%   98.85%           
=======================================
  Files          87       87           
  Lines       17128    17128           
=======================================
  Hits        16932    16932           
  Misses        196      196           

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@aitap aitap requested review from Anirban166 and tdhock as code owners June 7, 2026 09:17
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github-actions Bot commented Jun 7, 2026

  • HEAD=no_rename_dll much slower for transform improved in #5493
  • HEAD=no_rename_dll much faster for fread disk overhead improved in #6925
  • HEAD=no_rename_dll faster P<0.001 for DT[by,verbose=TRUE] improved in #6296
    Comparison Plot

Generated via commit 4a242e5

Download link for the artifact containing the test results: ↓ atime-results.zip

Task Duration
R setup and installing dependencies 6 minutes and 16 seconds
Installing different package versions 12 minutes and 5 seconds
Running and plotting the test cases 5 minutes and 24 seconds

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