uros-db commented on code in PR #46041:
URL: https://github.com/apache/spark/pull/46041#discussion_r1568736703
##########
sql/core/src/test/scala/org/apache/spark/sql/CollationStringExpressionsSuite.scala:
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@@ -307,6 +307,74 @@ class CollationStringExpressionsSuite
})
}
+ test("Support StringRPad string expressions with collation") {
+ // Supported collations
+ case class StringRPadTestCase[R](s: String, len: Int, pad: String, c:
String, result: R)
+ val testCases = Seq(
+ StringRPadTestCase("", 5, " ", "UTF8_BINARY", " "),
+ StringRPadTestCase("abc", 5, " ", "UNICODE", "abc "),
+ StringRPadTestCase("Hello", 7, "Wörld", "UTF8_BINARY_LCASE", "HelloWö"),
// scalastyle:ignore
+ StringRPadTestCase("1234567890", 5, "aaaAAa", "UNICODE_CI", "12345"),
+ StringRPadTestCase("aaAA", 2, " ", "UTF8_BINARY", "aa"),
+ StringRPadTestCase("ÀÃÂĀĂȦÄäåäáâãȻȻȻȻȻǢǼÆ℀℃", 2, "1", "UNICODE", "ÀÃ"),
// scalastyle:ignore
+ StringRPadTestCase("ĂȦÄäåäá", 20, "ÀÃÂĀĂȦÄäåäáâãȻȻȻȻȻǢǼÆ",
"UTF8_BINARY_LCASE", "ĂȦÄäåäáÀÃÂĀĂȦÄäåäáâã"), // scalastyle:ignore
+ StringRPadTestCase("aȦÄä", 8, "a1", "UNICODE_CI", "aȦÄäa1a1") //
scalastyle:ignore
+ )
+ testCases.foreach(t => {
+ Seq(s"SELECT rpad(collate('${t.s}', '${t.c}'), ${t.len}, '${t.pad}')",
+ if (t.c == "UTF_BINARY") {
+ s"SELECT rpad('${t.s}', ${t.len}, collate('${t.pad}', '${t.c}'))"
+ } else {
+ ""
+ },
+ s"SELECT rpad(collate('${t.s}', '${t.c}'), ${t.len},
collate('${t.pad}', '${t.c}'))"
Review Comment:
please add tests for implicit cast here, see tests for
Contains/StartsWith/EndsWith (above)
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