fix: update pk_cache in compat reader

[waynexia]

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What's changed and what's your intention?

SELECT with a filter will decode the primary key in advance, before compat reader. And compat reader doesn't handle the cache which leads to this error.

Checklist

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.
• This PR does not require documentation updates.

[fengjiachun]

LGTM

[codecov]

Codecov Report

Attention: Patch coverage is 40.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 84.89%. Comparing base (992c7ec) to head (f497f29).
Report is 6 commits behind head on main.

❗ Current head f497f29 differs from pull request most recent head 8d48088. Consider uploading reports for the commit 8d48088 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3576      +/-   ##
==========================================
- Coverage   85.46%   84.89%   -0.58%     
==========================================
  Files         911      917       +6     
  Lines      152506   152874     +368     
==========================================
- Hits       130346   129785     -561     
- Misses      22160    23089     +929