zhuqi-lucas commented on issue #7363:
URL: https://github.com/apache/arrow-rs/issues/7363#issuecomment-2857020809
Thank you @alamb for the suggestion, i agree, this is the perfect solution,
but it seems no row count information available for the parquet default V1
version page it only has num_values, i will investigate if we can do it.
```rust
#[derive(Clone)]
pub enum Page {
/// Data page Parquet format v1.
DataPage {
/// The underlying data buffer
buf: Bytes,
/// Number of values in this page
num_values: u32,
/// Encoding for values in this page
encoding: Encoding,
/// Definition level encoding
def_level_encoding: Encoding,
/// Repetition level encoding
rep_level_encoding: Encoding,
/// Optional statistics for this page
statistics: Option<Statistics>,
},
/// Data page Parquet format v2.
DataPageV2 {
/// The underlying data buffer
buf: Bytes,
/// Number of values in this page
num_values: u32,
/// Encoding for values in this page
encoding: Encoding,
/// Number of null values in this page
num_nulls: u32,
/// Number of rows in this page
num_rows: u32,
/// Length of definition levels
def_levels_byte_len: u32,
/// Length of repetition levels
rep_levels_byte_len: u32,
/// Is this page compressed
is_compressed: bool,
/// Optional statistics for this page
statistics: Option<Statistics>,
},
/// Dictionary page.
DictionaryPage {
/// The underlying data buffer
buf: Bytes,
/// Number of values in this page
num_values: u32,
/// Encoding for values in this page
encoding: Encoding,
/// Is dictionary page sorted
is_sorted: bool,
},
}
```
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