dtenedor commented on PR #36212:
URL: https://github.com/apache/spark/pull/36212#issuecomment-1100930838

   @morvenhuang apologies for the delay in review, I was on vacation for the 
last few days :)
   
   The changes in `ResolveDefaultColumns` look like they are on the right 
track. I am thinking, now we have this SQLConf to add NULL values for INSERTs 
that specify only a subset of the columns, but it is disabled by default. If we 
want to add functionality based on this, and we think it is useful, let's just 
enable it by default in this PR. This is safe because it only changes INSERTs 
that would have returned errors to execute successfully instead. We would need 
to update the affected tests; this could be done without much work by just 
pushing a commit setting it to true by default and then let the automated tests 
run. Then the subset of tests that subsequently fail should indicate what needs 
to be changed, and the change should be relatively straightforward.


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