NobiGo commented on code in PR #4476:
URL: https://github.com/apache/calcite/pull/4476#discussion_r2224079000
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testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
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@@ -8064,6 +8064,8 @@ void checkRegexpExtract(SqlOperatorFixture f0,
FunctionAlias functionAlias) {
SqlOperatorFixture f = fixture()
.setFor(SqlLibraryOperators.ARRAY_CONCAT)
.withLibrary(SqlLibrary.BIG_QUERY);
+ // Test case for [CALCITE-7105] ARRAY_CONCAT accepts any type of arguments
+ f.checkFails("^array_concat('a')^", "Cannot apply 'ARRAY_CONCAT'.*",
false);
Review Comment:
This exception should be `No match found for function signature
ARRAY_CONCAT(<CHAR(1)>)`.It should be emphasized that the exception is caused
by the type. The current exception information seems a bit strange.
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