pitrou commented on a change in pull request #11724:
URL: https://github.com/apache/arrow/pull/11724#discussion_r756934539



##########
File path: python/pyarrow/tests/parquet/test_basic.py
##########
@@ -352,6 +352,37 @@ def test_byte_stream_split(use_legacy_dataset):
                          use_legacy_dataset=use_legacy_dataset)
 
 
+@parametrize_legacy_dataset
+def test_col_encoding(use_legacy_dataset):
+    arr_float = pa.array(list(map(float, range(100))))
+    arr_int = pa.array(list(map(int, range(100))))
+    mixed_table = pa.Table.from_arrays([arr_float, arr_int],
+                                       names=['a', 'b'])
+
+    # Check NONE col_encoding.
+    _check_roundtrip(mixed_table, expected=mixed_table, use_dictionary=False,
+                     col_encoding=None, use_legacy_dataset=use_legacy_dataset)
+
+    # Check "BYTE_STREAM_SPLIT" for column 'a' and "PLAIN" col_encoding for
+    # column 'b'.
+    _check_roundtrip(mixed_table, expected=mixed_table, use_dictionary=False,
+                     col_encoding={'a': "BYTE_STREAM_SPLIT", 'b': "PLAIN"},
+                     use_legacy_dataset=use_legacy_dataset)
+
+    # Check "RLE" for column 'a' and "BYTE_STREAM_SPLIT" col_encoding for
+    # column 'b'.
+    _check_roundtrip(mixed_table, expected=mixed_table,
+                     use_byte_stream_split=['a'],
+                     col_encoding={'a': "RLE", 'b': "BYTE_STREAM_SPLIT"},
+                     use_legacy_dataset=use_legacy_dataset)
+
+    # Check "DELTA_BINARY_PACKED" col_encoding for column 'b'.
+    _check_roundtrip(mixed_table, expected=mixed_table,
+                     use_dictionary=['b'],
+                     col_encoding={'b': "DELTA_BINARY_PACKED"},

Review comment:
       @bkief That's a good idea. Can you open a 
[JIRA](https://issues.apache.org/jira/secure/CreateIssue!default.jspa) for that?




-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


Reply via email to