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Posted to issues@arrow.apache.org by "yevgenypats (via GitHub)" <gi...@apache.org> on 2023/05/19 10:16:31 UTC

[GitHub] [arrow] yevgenypats opened a new issue, #35684: [Go][Parquet] panic for listof(types) if null

yevgenypats opened a new issue, #35684:
URL: https://github.com/apache/arrow/issues/35684

   ### Describe the bug, including details regarding any error messages, version, and platform.
   
   parquet writer will panic on any of the following types if the value null:
   
   ```
   		{Name: "f1", Type: arrow.ListOf(arrow.FixedWidthTypes.Date32)},
   		{Name: "f2", Type: arrow.ListOf(arrow.FixedWidthTypes.Date64)},
   		{Name: "f3", Type: arrow.ListOf(arrow.FixedWidthTypes.Timestamp_us)},
   		{Name: "f4", Type: arrow.ListOf(arrow.FixedWidthTypes.Timestamp_ms)},
   		{Name: "f5", Type: arrow.ListOf(arrow.FixedWidthTypes.Time32ms)},
   		{Name: "f6", Type: arrow.ListOf(arrow.FixedWidthTypes.Time64ns)},
   		{Name: "f7", Type: arrow.ListOf(arrow.FixedWidthTypes.Time64us)},
   ```
   
   ### Component(s)
   
   Go


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[GitHub] [arrow] zeroshade commented on issue #35684: [Go][Parquet] panic for listof(types) if null

Posted by "zeroshade (via GitHub)" <gi...@apache.org>.
zeroshade commented on issue #35684:
URL: https://github.com/apache/arrow/issues/35684#issuecomment-1554905107

   @yevgenypats So, looking at your example, the panic is coming because you only add a null to *one* of the fields in the record builder. Which means the builders are unbalanced for the record. One column has a length of 1 and the rest all have length 0, and a record must have the same number of rows in every column. So that's where your panic is coming from.
   
   That said, after changing your example so that it appends a null to *every* column, I still got an error from a nil pointer dereference so I'm looking into that to fix it.


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[GitHub] [arrow] zeroshade closed issue #35684: [Go][Parquet] panic for listof(types) if null

Posted by "zeroshade (via GitHub)" <gi...@apache.org>.
zeroshade closed issue #35684: [Go][Parquet] panic for listof(types) if null
URL: https://github.com/apache/arrow/issues/35684


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