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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/06/30 03:51:00 UTC

[GitHub] [arrow-rs] Ted-Jiang commented on a diff in pull request #1935: add column index writer for parquet

Ted-Jiang commented on code in PR #1935:
URL: https://github.com/apache/arrow-rs/pull/1935#discussion_r910581055


##########
parquet/src/file/metadata.rs:
##########
@@ -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



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