dongjoon-hyun commented on a change in pull request #24911: [SPARK-28109][SQL]
Fix TRIM(type trimStr FROM str) returns incorrect value
URL: https://github.com/apache/spark/pull/24911#discussion_r295406481
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File path: sql/core/src/test/resources/sql-tests/inputs/string-functions.sql
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@@ -40,11 +40,11 @@ SELECT substring('Spark SQL' from -3);
SELECT substring('Spark SQL' from 5 for 1);
-- trim/ltrim/rtrim
-SELECT trim('yxTomxx', 'xyz');
-SELECT trim('xxxbarxxx', 'x');
-SELECT ltrim('zzzytest', 'xyz');
-SELECT ltrim('zzzytestxyz', 'xyz');
-SELECT ltrim('xyxXxyLAST WORD', 'xy');
-SELECT rtrim('testxxzx', 'xyz');
-SELECT rtrim('xyztestxxzx', 'xyz');
-SELECT rtrim('TURNERyxXxy', 'xy');
+SELECT trim('yxTomxx', 'xyz'), trim(BOTH 'xyz' FROM 'yxTomxx');
+SELECT trim('xxxbarxxx', 'x'), trim(BOTH 'x' FROM 'xxxbarxxx');
+SELECT ltrim('zzzytest', 'xyz'), trim(LEADING 'xyz' FROM 'zzzytest');
+SELECT ltrim('zzzytestxyz', 'xyz'), trim(LEADING 'xyz' FROM 'zzzytestxyz');
+SELECT ltrim('xyxXxyLAST WORD', 'xy'), trim(LEADING 'xy' FROM 'xyxXxyLAST
WORD');
+SELECT rtrim('testxxzx', 'xyz'), trim(TRAILING 'xyz' FROM 'testxxzx');
+SELECT rtrim('xyztestxxzx', 'xyz'), trim(TRAILING 'xyz' FROM 'xyztestxxzx');
+SELECT rtrim('TURNERyxXxy', 'xy'), trim(TRAILING 'xy' FROM 'TURNERyxXxy');
Review comment:
Thank you for the new test coverage!
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