Change offset vector from int64 to internal_id when reading from files

[ray6080]

No description provided.

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (c604332) 89.58% compared to head (b07286b) 89.56%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2219      +/-   ##
==========================================
- Coverage   89.58%   89.56%   -0.03%     
==========================================
  Files        1007     1007              
  Lines       36249    36250       +1     
==========================================
- Hits        32475    32468       -7     
- Misses       3774     3782       +8     

Files	Coverage Δ
src/binder/bind/bind_copy.cpp	94.83% <100.00%> (ø)
src/include/binder/copy/bound_file_scan_info.h	100.00% <100.00%> (ø)
src/include/catalog/property.h	100.00% <ø> (ø)
...c/include/processor/operator/persistent/copy_rel.h	100.00% <100.00%> (ø)
src/include/processor/operator/persistent/reader.h	100.00% <100.00%> (ø)
src/planner/operator/scan/logical_scan_file.cpp	100.00% <100.00%> (ø)
src/processor/map/map_copy_from.cpp	100.00% <100.00%> (ø)
src/processor/map/map_scan_file.cpp	100.00% <100.00%> (ø)
...processor/operator/persistent/copy_rel_columns.cpp	100.00% <100.00%> (ø)
...c/processor/operator/persistent/copy_rel_lists.cpp	100.00% <100.00%> (ø)
... and 1 more

... and 3 files with indirect coverage changes

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