Pass rows IDs instead of rows to parallel UDFs

[dreadatour]

TBD

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[codecov]

Codecov Report

Attention: Patch coverage is 66.17647% with 23 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@ee43fd1). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/datachain/query/utils.py	42.85%	10 Missing and 2 partials ⚠️
src/datachain/query/batch.py	64.70%	3 Missing and 3 partials ⚠️
src/datachain/query/dispatch.py	82.75%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #381   +/-   ##
=======================================
  Coverage        ?   86.53%           
=======================================
  Files           ?       94           
  Lines           ?     9822           
  Branches        ?     2031           
=======================================
  Hits            ?     8499           
  Misses          ?      966           
  Partials        ?      357           

Flag	Coverage Δ
datachain	86.46% <66.17%> (?)

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