etseidl commented on code in PR #11262:
URL: https://github.com/apache/arrow-rs/pull/11262#discussion_r4219894414


##########
parquet/src/column/reader.rs:
##########
@@ -484,15 +496,46 @@ where
                                 )?;
                                 offset += bytes_read;
 
+                                if normalize_fixed {
+                                    // V1 has no non-null count. Both strict 
PLAIN validation
+                                    // and legacy repair need the physical 
count: nulls and
+                                    // nested placeholders have no values in 
the data section.

Review Comment:
   Wow, that's a big commit. I'll take a look after my brain wakes up 😅 



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