liukun4515 commented on code in PR #1935:
URL: https://github.com/apache/arrow-rs/pull/1935#discussion_r910669550
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parquet/src/file/metadata.rs:
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@@ -789,6 +792,107 @@ impl ColumnChunkMetaDataBuilder {
}
}
+/// Builder for column index
+pub struct ColumnIndexBuilder {
+ null_pages: Vec<bool>,
+ min_values: Vec<Vec<u8>>,
+ max_values: Vec<Vec<u8>>,
+ // TODO: calc the order for all pages in this column
Review Comment:
> 👍 this is useful for checking whether use page index
If the data in the pages are ordered by ascend or descend, we can use the
`binary search` to accelerate the page filter.
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