Nate Clark created ARROW-13246:
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             Summary: [C++] CSV skip_rows_after_names can discard data 
prematurally
                 Key: ARROW-13246
                 URL: https://issues.apache.org/jira/browse/ARROW-13246
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
    Affects Versions: 5.0.0
            Reporter: Nate Clark
            Assignee: Nate Clark


In the SerialBlockReader when `skip_rows_` is set and there are more rows to 
skip than what is in the current block `partial_` is set as an empty buffer 
when it should be the remainder of the current buffer. This could cause a 
problem if the buffer ends in the middle of a quoted value since that will 
throw off parsing.



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