etseidl commented on code in PR #449:
URL: https://github.com/apache/parquet-format/pull/449#discussion_r1725363400
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src/main/thrift/parquet.thrift:
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@@ -1084,7 +1091,16 @@ struct ColumnIndex {
*/
4: required BoundaryOrder boundary_order
- /** A list containing the number of null values for each page **/
+ /**
+ * A list containing the number of null values for each page
+ *
+ * Writers SHOULD always write this field even if no null value
+ * or the column is not nullable.
Review Comment:
```suggestion
* Writers SHOULD always write this field even if no null values
* are present or the column is not nullable.
```
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