emkornfield commented on code in PR #250:
URL: https://github.com/apache/parquet-format/pull/250#discussion_r1621069838


##########
README.md:
##########
@@ -118,6 +118,51 @@ chunks they are interested in.  The columns chunks should 
then be read sequentia
 
  ![File 
Layout](https://raw.github.com/apache/parquet-format/master/doc/images/FileLayout.gif)
 
+ ### PAR3 File Footers
+
+ PAR3 file footer footer format designed to better support wider-schemas and 
more control
+ over the various footer size vs compute trade-offs.  Its format is as follows:
+   - Serialized Thrift FileMetadata Structure
+   - (Optional) 4 byte CRC32 of the serialized Thrift FileMetadata.

Review Comment:
   I tend to agree, other had concerns that it was gratuitous.  I can update to 
make it required.



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