Disable autovacuum on compressed hypercore chunk

[mkindahl]

Autovacuum will run on all relations that are not explicitly disabled,
which can lead to unnecessarily vacuuming the compressed relation
twice: once as part of the hypercore table access method and once as a
separate relation.

This commit disables autovacuum_enabled for the compressed chunks
when the main chunk is turned into a hypercore chunk. It deals with
both the cases that you have a partially compressed chunk.

Disable-check: commit-count

[codecov]

Codecov Report

Attention: Patch coverage is 79.16667% with 10 lines in your changes missing coverage. Please review.

Project coverage is 82.56%. Comparing base (59f50f2) to head (5c63e0c).
Report is 554 commits behind head on main.

Files with missing lines	Patch %	Lines
src/utils.c	69.69%	3 Missing and 7 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7358      +/-   ##
==========================================
+ Coverage   80.06%   82.56%   +2.49%     
==========================================
  Files         190      229      +39     
  Lines       37181    42767    +5586     
  Branches     9450    10742    +1292     
==========================================
+ Hits        29770    35309    +5539     
- Misses       2997     3169     +172     
+ Partials     4414     4289     -125     

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[erimatnor]

Is it intentional to have the extra commit with review comments included?

If so, it seems unrelated to the main change. Also, I don't think we want a commit in the log that says "Handle review comments." so it is unclear what the intention is here.

As for the main issue you are trying to address, I am wondering if there wasn't some previous way of turning off vacuum? I believe we used to do it for the compressed chunk prior to DML support on compressed data. Isn't there some code to reuse from that functionality?