3回答
- 新しい順
- 投票が多い順
- コメントが多い順
0
I had the same issue and solved that with creating a view and adding some size checks for array columns like this one:
IF(CARDINALITY(my_array_column) = 0, NULL, my_array_column) AS my_array_column
回答済み 5年前
0
I am having the same problem but unfortunately the above suggestion does not work because it appears to happen with nested arrays as well which i cannot check the cardinality of and replace with null if empty without unnesting everything first (if that would even be possible due to multiple struct & array columns and levels of nesting).
回答済み 5年前
0
Admittedly responding to an old question, but a simple solution is to use ORC as format instead of PARQUET (format='ORC'), which doesn't have an issue with empty values.
回答済み 3年前
関連するコンテンツ
- AWS公式更新しました 7ヶ月前
- AWS公式更新しました 2年前
- AWS公式更新しました 3年前