alamb commented on code in PR #21637:
URL: https://github.com/apache/datafusion/pull/21637#discussion_r3243789052
##########
datafusion/datasource-parquet/src/metrics.rs:
##########
@@ -213,4 +213,28 @@ impl ParquetFileMetrics {
predicate_cache_records,
}
}
+
+ /// Record pages whose page-index pruning was skipped because the
containing
+ /// row group was fully matched by row-group statistics.
+ ///
+ /// The counter is only registered when there is a non-zero value. This
keeps
Review Comment:
I wonder if we should apply the same pattern to the other metrics (lazily
initialize them) -- if you can get a few percent in this query maybe it would
get us a few in the others
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