fix: allow row id only in v2

[westonpace]

Closes #2480

[westonpace]

Rebased and will merge on green

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 56.41026% with 17 lines in your changes missing coverage. Please review.

Project coverage is 79.46%. Comparing base (7cd11b8) to head (6b31be5).

Files	Patch %	Lines
rust/lance/src/dataset/fragment.rs	45.16%	5 Missing and 12 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2481      +/-   ##
==========================================
- Coverage   79.55%   79.46%   -0.10%     
==========================================
  Files         208      208              
  Lines       59351    58957     -394     
  Branches    59351    58957     -394     
==========================================
- Hits        47217    46848     -369     
+ Misses       9371     9368       -3     
+ Partials     2763     2741      -22     

Flag	Coverage Δ
unittests	79.46% <56.41%> (-0.10%)	⬇️

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