herunkang2018 commented on code in PR #3364:
URL: https://github.com/apache/calcite/pull/3364#discussion_r1359843557
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testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
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@@ -1253,15 +1254,28 @@ void testCastStringToDateTime(CastType castType,
SqlOperatorFixture f) {
f.checkScalar("cast('1945-02-24 12:42:25.34' as TIMESTAMP(2))",
"1945-02-24 12:42:25.34", "TIMESTAMP(2) NOT NULL");
}
+ if (Bug.CALCITE_5678_FIXED) {
+ if (castType == CastType.CAST) {
+ f.checkFails("cast('1945-2-2 12:2:5' as TIMESTAMP)",
+ "Invalid DATE value, '1945-2-2 12:2:5'", true);
+ f.checkFails("cast('1241241' as TIMESTAMP)",
+ "Invalid DATE value, '1241241'", true);
+ f.checkFails("cast('1945-20-24 12:42:25.34' as TIMESTAMP)",
+ "Invalid DATE value, '1945-20-24 12:42:25.34'", true);
+ f.checkFails("cast('1945-01-24 25:42:25.34' as TIMESTAMP)",
+ "Value of HOUR field is out of range in '1945-01-24 25:42:25.34'",
true);
+ f.checkFails("cast('1945-1-24 12:23:34.454' as TIMESTAMP)",
+ "Invalid DATE value, '1945-1-24 12:23:34.454'", true);
+ } else {
+ // test cases for 'SAFE_CAST' and 'TRY_CAST'
+ f.checkNull("cast('1945-2-2 12:2:5' as TIMESTAMP)");
+ f.checkNull("cast('1241241' as TIMESTAMP)");
+ f.checkNull("cast('1945-20-24 12:42:25.34' as TIMESTAMP)");
+ f.checkNull("cast('1945-01-24 25:42:25.34' as TIMESTAMP)");
+ f.checkNull("cast('1945-1-24 12:23:34.454' as TIMESTAMP)");
+ }
Review Comment:
I think `f.checkCastFails` cannot be used to refactor the code. The reason
is that`f.checkCastFails` can only check exceptions, but 'SAFE_CAST' and
'TRY_CAST' will return `NULL` instead of throwing exception if the input is not
a valid value when interpreted as the desired type.
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