maropu commented on a change in pull request #25001: [SPARK-28083][SQL] Support
LIKE ... ESCAPE syntax
URL: https://github.com/apache/spark/pull/25001#discussion_r303892528
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/RegexpExpressionsSuite.scala
##########
@@ -118,6 +118,154 @@ class RegexpExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
checkLiteralRow("""%SystemDrive%\Users\John""" like _,
"""\%SystemDrive\%\\Users%""", true)
}
+ test("LIKE Pattern ESCAPE '/'") {
+
+ // null handling
+ checkLiteralRow(Literal.create(null, StringType).like(_, "/"), "a", null)
+ checkEvaluation(
+ Literal.create("a", StringType).like(Literal.create(null, StringType),
"/"), null)
+ checkEvaluation(
+ Literal.create(null, StringType).like(Literal.create(null, StringType),
"/"), null)
+ checkEvaluation(
+ Literal.create("a", StringType).like(NonFoldableLiteral.create("a",
StringType), "/"), true)
+ checkEvaluation(
+ Literal.create("a", StringType).like(NonFoldableLiteral.create(null,
StringType), "/"), null)
+ checkEvaluation(
+ Literal.create(null, StringType).like(NonFoldableLiteral.create("a",
StringType), "/"), null)
+ checkEvaluation(
+ Literal.create(null, StringType).like(NonFoldableLiteral.create(null,
StringType), "/"), null)
+
+ // simple patterns
+ checkLiteralRow("abdef" like(_, "/"), "abdef", true)
+ checkLiteralRow("a_%b" like(_, "/"), "a/__b", true)
+ checkLiteralRow("addb" like(_, "/"), "a_%b", true)
+ checkLiteralRow("addb" like(_, "/"), "a/__b", false)
+ checkLiteralRow("addb" like(_, "/"), "a%/%b", false)
+ checkLiteralRow("a_%b" like(_, "/"), "a%/%b", true)
+ checkLiteralRow("addb" like(_, "/"), "a%", true)
+ checkLiteralRow("addb" like(_, "/"), "**", false)
+ checkLiteralRow("abc" like(_, "/"), "a%", true)
+ checkLiteralRow("abc" like(_, "/"), "b%", false)
+ checkLiteralRow("abc" like(_, "/"), "bc%", false)
+ checkLiteralRow("a\nb" like(_, "/"), "a_b", true)
+ checkLiteralRow("ab" like(_, "/"), "a%b", true)
+ checkLiteralRow("a\nb" like(_, "/"), "a%b", true)
+
+ // empty input
+ checkLiteralRow("" like(_, "/"), "", true)
+ checkLiteralRow("a" like(_, "/"), "", false)
+ checkLiteralRow("" like(_, "/"), "a", false)
+
+ // SI-17647 double-escaping backslash
+ checkLiteralRow("""////""" like(_, "/"), """%//%""", true)
+ checkLiteralRow("""%%""" like(_, "/"), """%%""", true)
+ checkLiteralRow("""/__""" like(_, "/"), """///__""", true)
+ checkLiteralRow("""///__""" like(_, "/"), """%//%/%""", false)
+ checkLiteralRow("""_///%""" like(_, "/"), """%//""", false)
+
+ // unicode
+ // scalastyle:off nonascii
+ checkLiteralRow("a\u20ACa" like(_, "/"), "_\u20AC_", true)
+ checkLiteralRow("a€a" like(_, "/"), "_€_", true)
+ checkLiteralRow("a€a" like(_, "/"), "_\u20AC_", true)
+ checkLiteralRow("a\u20ACa" like(_, "/"), "_€_", true)
+ // scalastyle:on nonascii
+
+ // invalid escaping
+ val invalidEscape = intercept[AnalysisException] {
+ evaluateWithoutCodegen("""a""" like("""/a""", "/"))
+ }
+ assert(invalidEscape.getMessage.contains("pattern"))
Review comment:
"pattern"?
----------------------------------------------------------------
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.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
