2010YOUY01 commented on code in PR #23968:
URL: https://github.com/apache/datafusion/pull/23968#discussion_r3681691074
##########
datafusion/sqllogictest/test_files/string/string_literal.slt:
##########
@@ -664,6 +664,64 @@ SELECT rpad('x', 5, 'e' || chr(769)) = 'x' || 'e' ||
chr(769) || 'e' || chr(769)
----
true 5
+# rpad with string, length, and fill arrays in every string width
+query BBB
+SELECT
+ rpad(arrow_cast(column1, 'Utf8'), column2, arrow_cast(column3, 'Utf8')) =
column4,
+ rpad(arrow_cast(column1, 'LargeUtf8'), column2, arrow_cast(column3,
'LargeUtf8')) = column4,
+ rpad(arrow_cast(column1, 'Utf8View'), column2, arrow_cast(column3,
'Utf8View')) = column4
+FROM (VALUES
+ ('hi', 5, 'xy', 'hixyx'),
+ ('abcdef', 3, 'z', 'abc'),
+ ('é', 4, '好', 'é好好好'),
+ ('hi', 5, '', 'hi'),
+ (NULL, 5, 'x', NULL),
+ ('hi', NULL, 'x', NULL),
+ ('hi', 5, NULL, NULL)
+) AS t(column1, column2, column3, column4);
Review Comment:
Good point, updated.
##########
datafusion/sqllogictest/test_files/string/string_literal.slt:
##########
@@ -664,6 +664,64 @@ SELECT rpad('x', 5, 'e' || chr(769)) = 'x' || 'e' ||
chr(769) || 'e' || chr(769)
----
true 5
+# rpad with string, length, and fill arrays in every string width
+query BBB
+SELECT
+ rpad(arrow_cast(column1, 'Utf8'), column2, arrow_cast(column3, 'Utf8')) =
column4,
+ rpad(arrow_cast(column1, 'LargeUtf8'), column2, arrow_cast(column3,
'LargeUtf8')) = column4,
+ rpad(arrow_cast(column1, 'Utf8View'), column2, arrow_cast(column3,
'Utf8View')) = column4
+FROM (VALUES
+ ('hi', 5, 'xy', 'hixyx'),
+ ('abcdef', 3, 'z', 'abc'),
+ ('é', 4, '好', 'é好好好'),
+ ('hi', 5, '', 'hi'),
+ (NULL, 5, 'x', NULL),
+ ('hi', NULL, 'x', NULL),
+ ('hi', 5, NULL, NULL)
+) AS t(column1, column2, column3, column4);
+----
+true true true
+true true true
+true true true
+true true true
+NULL NULL NULL
+NULL NULL NULL
+NULL NULL NULL
+
+# rpad array path with the default fill
+query BBB
+SELECT
+ rpad(arrow_cast(column1, 'Utf8'), column2) = column3,
+ rpad(arrow_cast(column1, 'LargeUtf8'), column2) = column3,
+ rpad(arrow_cast(column1, 'Utf8View'), column2) = column3
+FROM (VALUES ('hi', 5, 'hi '), ('abcdef', 3, 'abc'), (NULL, 5, NULL)) AS
t(column1, column2, column3);
+----
+true true true
+true true true
+NULL NULL NULL
+
+# a large scalar target length skips the scalar fast path
+query I
+SELECT character_length(rpad('x', 16385, 'a'));
+----
+16385
+
+# invalid argument count/type and excessive target length
+query error DataFusion error:
+SELECT rpad();
+
+query error DataFusion error:
+SELECT rpad('x');
+
+query error DataFusion error:
+SELECT rpad('x', 2, 'y', 'z');
+
+query error DataFusion error:
+SELECT rpad('x', 'bad');
Review Comment:
updated
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