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Posted to dev@parquet.apache.org by GitBox <gi...@apache.org> on 2023/01/19 21:46:50 UTC
[GitHub] [parquet-format] wjones127 commented on a diff in pull request #189: PARQUET-2231: [Format] Allow DELTA_BYTE_ARRAY for FIXED_LEN_BYTE_ARRAY
wjones127 commented on code in PR #189:
URL: https://github.com/apache/parquet-format/pull/189#discussion_r1081899568
##########
Encodings.md:
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@@ -280,16 +280,19 @@ concatenated back to back. The expected savings is from the cost of encoding the
and possibly better compression in the data (it is no longer interleaved with the lengths).
The data stream looks like:
-
+```
<Delta Encoded Lengths> <Byte Array Data>
+```
-For example, if the data was "Hello", "World", "Foobar", "ABCDEF":
+For example, if the data was "Hello", "World", "Foobar", "ABCDEF"
-The encoded data would be DeltaEncoding(5, 5, 6, 6) "HelloWorldFoobarABCDEF"
+The encoded data would be comprised of the following segments:
Review Comment:
```suggestion
then the encoded data would be comprised of the following segments:
```
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