davidradl commented on code in PR #27920:
URL: https://github.com/apache/flink/pull/27920#discussion_r3073276397


##########
flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/planner/expressions/ScalarFunctionsTest.scala:
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@@ -408,10 +408,10 @@ class ScalarFunctionsTest extends ScalarTypesTestBase {
     testAllApis("abcxxxdef".like("%abc%qef%"), "'abcxxxdef' LIKE '%abc%qef%'", 
"FALSE")
     testAllApis("abcxxxdef".like("abc%qef"), "'abcxxxdef' LIKE 'abc%qef'", 
"FALSE")
 
-    // reported in FLINK-36100
+    // reported in FLINK-36100 - without ESCAPE clause, '\' is a literal 
character

Review Comment:
   what happens if we have an escape character defined as `_` or `%` or `* `. 
Can we test that these will be rejected?



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