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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/04/03 02:20:58 UTC

[GitHub] [arrow-datafusion] jychen7 opened a new pull request #2139: #2109 schema infer max

jychen7 opened a new pull request #2139:
URL: https://github.com/apache/arrow-datafusion/pull/2139


   # Which issue does this PR close?
   
   Closes #2109
   
    # Rationale for this change
   
   Almost 100x slowdown on 0.7.0 with CSV file due to parsing entire file to infer schema
   
   # What changes are included in this PR?
   
   set default to 1000 instead of None (unlimit) for csv and json's schema_infer_max_rec
   
   # Are there any user-facing changes?
   
   NA


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