brkyvz commented on code in PR #585:
URL: https://github.com/apache/parquet-format/pull/585#discussion_r3546622258


##########
src/main/thrift/parquet.thrift:
##########
@@ -468,6 +468,21 @@ struct GeographyType {
   2: optional EdgeInterpolationAlgorithm algorithm;
 }
 
+/**
+ * File logical type annotation
+ *
+ * Annotates a group that represents a reference to an external file.
+ * The group must contain the following fields identified by name:
+ *   - path (STRING, required): an opaque string path to the file (e.g. 
s3://bucket/file.jpg)

Review Comment:
   @pitrou Engines can build support for handling URIs out of the box, but I'm 
curious why you're so opposed to users being able to do their own things with 
UDFs in engines. You're asking to block out potential use cases



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