wiedld opened a new pull request, #11345:
URL: https://github.com/apache/datafusion/pull/11345

   ## Which issue does this PR close?
   
   Closes #11344 
   
   ## Rationale for this change
   
   ParquetSink can use non-trivial amounts of memory to buffer rowgroups prior 
to flush, when executed within a task context. Therefore, this memory usage 
should be accounted within the task's memory pool.
   
   ## What changes are included in this PR?
   
   Ensure memory accounting under three use cases for ParquetSink:
   * when non-parallel writes
   * when using multiple row-writers
   * when using multiple column-writers
   
   ## Are these changes tested?
   
   Yes
   
   ## Are there any user-facing changes?
   
   No
   


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