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new fa255df Correct `fixed_length_byte_array.parquet` (#111)
fa255df is described below
commit fa255dfacf58c8bab428b5d0117d188acc8ad03f
Author: ccleva <[email protected]>
AuthorDate: Wed May 20 11:54:31 2026 +0200
Correct `fixed_length_byte_array.parquet` (#111)
* Change fixed_length_byte_array.parquet flba_field to optional
* Add previous fixed_length_byte_array.parquet file to bad_data
---
.../ARROW-GH-47662.parquet | Bin
bad_data/README.md | 2 ++
data/fixed_length_byte_array.md | 28 ++++++++++-----------
data/fixed_length_byte_array.parquet | Bin 4335 -> 4437 bytes
4 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/data/fixed_length_byte_array.parquet
b/bad_data/ARROW-GH-47662.parquet
similarity index 100%
copy from data/fixed_length_byte_array.parquet
copy to bad_data/ARROW-GH-47662.parquet
diff --git a/bad_data/README.md b/bad_data/README.md
index bb12b6f..4fbc0c4 100644
--- a/bad_data/README.md
+++ b/bad_data/README.md
@@ -33,3 +33,5 @@ These are files used for reproducing various bugs that have
been reported.
* ARROW-GH-43605.parquet: dictionary index page uses rle encoding but 0 as rle
bit-width.
* ARROW-GH-45185.parquet: test case of
https://github.com/apache/arrow/issues/45185
where repetition levels start with a 1 instead of 0.
+* ARROW-GH-47662.parquet: test case identified in
https://github.com/apache/arrow/issues/47662
+ where a required column contains null values (an incorrect version of
data/fixed_length_byte_array.parquet).
diff --git a/data/fixed_length_byte_array.md b/data/fixed_length_byte_array.md
index a0d98ac..c255753 100644
--- a/data/fixed_length_byte_array.md
+++ b/data/fixed_length_byte_array.md
@@ -31,14 +31,14 @@ Properties:
writer.model.name: example
Schema:
message schema {
- required fixed_len_byte_array(4) flba_field;
+ optional fixed_len_byte_array(4) flba_field;
}
-Row group 0: count: 1000 3.84 B records start: 4 total(compressed): 3.749
kB total(uncompressed):3.749 kB
+Row group 0: count: 1000 3,94 B records start: 4 total(compressed): 3,848
kB total(uncompressed):3,848 kB
--------------------------------------------------------------------------------
type encodings count avg size nulls min / max
-flba_field FIXED[4] _ _ 1000 3.84 B 105 "0x00000001" /
"0x000003E8"
+flba_field FIXED[4] _ _ 1000 3,94 B 105 "0x00000001" /
"0x000003E8"
```
# Column Index (from parquet-cli column-index command)
@@ -59,15 +59,15 @@ page-8 9 0x00000065
0x00
page-9 6 0x00000001
0x00000064
offset index for column flba_field:
- offset compressed size first row index
-page-0 4 390 0
-page-1 394 390 100
-page-2 784 350 200
-page-3 1134 386 300
-page-4 1520 373 400
-page-5 1893 382 500
-page-6 2275 382 600
-page-7 2657 394 700
-page-8 3051 390 800
-page-9 3441 402 900
+ offset compressed size first row index
unencoded bytes
+page-0 4 400 0
-
+page-1 404 400 100
-
+page-2 804 361 200
-
+page-3 1165 396 300
-
+page-4 1561 384 400
-
+page-5 1945 392 500
-
+page-6 2337 392 600
-
+page-7 2729 404 700
-
+page-8 3133 400 800
-
+page-9 3533 411 900
-
```
diff --git a/data/fixed_length_byte_array.parquet
b/data/fixed_length_byte_array.parquet
index e86a886..240d002 100644
Binary files a/data/fixed_length_byte_array.parquet and
b/data/fixed_length_byte_array.parquet differ
