wgtmac commented on code in PR #240:
URL: https://github.com/apache/parquet-format/pull/240#discussion_r1773566114
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src/main/thrift/parquet.thrift:
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@@ -1084,6 +1290,9 @@ struct ColumnIndex {
* Same as repetition_level_histograms except for definitions levels.
**/
7: optional list<i64> definition_level_histograms;
+
+ /** A list containing statistics of GEOMETRY logical type for each page */
+ 8: optional list<GeometryStatistics> geometry_stats;
Review Comment:
Page level stats are super useful in a needle-in-the-haystack search.
Computation on geometry type can be very slow due to its mathematical
complexity. Page-level stats such as bounding box can help filtering out
unnecessary pages because computation on bounding box is faster in order of
magnitude than on complex polygons.
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