RussellSpitzer commented on code in PR #119:
URL: https://github.com/apache/parquet-testing/pull/119#discussion_r3776591526
##########
data/README.md:
##########
@@ -592,6 +593,69 @@ java -jar
parquet-cli/target/parquet-cli-1.16.0-SNAPSHOT-runtime.jar cat /home/r
{"utf8_full_truncation": "Kevin Bacon", "binary_full_truncation": "Kevin
Bacon", "utf8_partial_truncation": "🚀Kevin Bacon", "binary_partial_truncation":
"ÿÿ\u0001\u0002", "utf8_no_truncation": "Ke", "binary_no_truncation": "Ke"}
```
+## ALP encoding
+
+`alp_extended.zstd.parquet` contains FLOAT and DOUBLE columns encoded with
+[Adaptive Lossless floating-Point
(ALP)](https://github.com/apache/parquet-format/blob/master/Encodings.md#adaptive-lossless-floating-point-alp--10)
+(`ALP = 10`).
+It was created with the code in this
[PR](https://github.com/apache/arrow/pull/49154).
+
+All columns contain the same 9032 values. The same values appear all columns
so
Review Comment:
```suggestion
All columns contain the same 9032 values. The same values appear in all
columns so
```
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