Github user paul-rogers commented on a diff in the pull request:
https://github.com/apache/drill/pull/907#discussion_r134035974
--- Diff:
exec/java-exec/src/test/java/org/apache/drill/exec/expr/fn/impl/TestStringFunctions.java
---
@@ -157,6 +157,967 @@ public void testRegexpReplace() throws Exception {
}
@Test
+ public void testLikeStartsWith() throws Exception {
+
+ // all ASCII.
+ testBuilder()
--- End diff --
The regex parsing and execution code is becoming complex. Let's test it
with a true unit test, not just a system-level test using a query. See the test
frameworks available. We can also discuss in person.
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