etseidl commented on code in PR #251:
URL: https://github.com/apache/parquet-format/pull/251#discussion_r1635788871


##########
LogicalTypes.md:
##########
@@ -59,7 +60,7 @@ Compatibility considerations are mentioned for each 
annotation in the correspond
 
 ### STRING
 
-`STRING` may only be used to annotate the binary primitive type and indicates
+`STRING` may only be used to annotate the BYTE_ARRAY primitive type and 
indicates

Review Comment:
   I don't know. For `DECIMAL` the spec calls out "byte arrays, binary and 
fixed" as valid physical types. I'd take the lack of mention of fixed-length 
here to indicated that only the `BYTE_ARRAY` physical type is allowed. Do any 
current implementations allow fixed-length strings?



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