Github user wzhfy commented on a diff in the pull request:
https://github.com/apache/spark/pull/12646#discussion_r117601355
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala
---
@@ -2015,4 +2015,121 @@ class SQLQuerySuite extends QueryTest with
SQLTestUtils with TestHiveSingleton {
checkAnswer(table.filter($"p" === "p1\" and q=\"q1").select($"a"),
Row(4))
}
}
+
+ test("TRIM function-BOTH") {
+ withTable("trimBoth", "trimStrut") {
+ sql("create table trimBoth (c1 string, c2 char(1), c3 string, c4
string, " +
+ "c5 string, c6 string)")
+ // scalastyle:off
+ sql("insert into trimBoth select 'cccccc', 'c', ' cccbacc',
'cccbaccæ°', 'æ°æ®ç 头', 'æ°'")
+ // scalastyle:on
+ sql("create table trimStrut (c1 struct<n1: int, n2:string>, c2
string)")
+ sql("insert into trimStrut values ((100, 'abc'), 'ABC')")
+
+ intercept[AnalysisException] {
+ sql("SELECT TRIM('c', C1, 'd') from trimBoth")
+ }
+ intercept[AnalysisException] {
+ sql("SELECT TRIM(C2, C1) from trimBoth").collect
+ }
+ intercept[AnalysisException] {
+ sql("SELECT TRIM(BOTH C2 FROM C1) from trimBoth").collect
+ }
+ intercept[AnalysisException] {
+ sql("select trim(c1,c2) from trimStrut")
+ }
+ intercept[AnalysisException] {
+ sql("select trim(c2,c1) from trimStrut")
+ }
+
+ checkAnswer (sql("SELECT TRIM(BOTH 'c' FROM C1) from trimBoth"),
Row(""))
--- End diff --
remove space after `checkAnswer`
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