caicancai commented on code in PR #3915:
URL: https://github.com/apache/calcite/pull/3915#discussion_r1722599804
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testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
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@@ -13824,6 +13824,63 @@ void testTimestampDiff(boolean coercionEnabled) {
f.checkNull("date_add(CAST(NULL AS DATE), interval 5 day)");
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6527";>[CALCITE-6527]
+ * Add DATE_ADD function (enabled in Spark library)</a>.
+ */
+ @Test void testDateAddSpark() {
+ final SqlOperatorFixture f0 = fixture()
+ .setFor(SqlLibraryOperators.DATE_ADD_SPARK);
+ f0.checkFails("^date_add(date '2008-12-25', "
+ + "5)^",
+ "No match found for function signature "
+ + "DATE_ADD\\(<DATE>, <NUMERIC>\\)", false);
+
+ final SqlOperatorFixture f = f0.withLibrary(SqlLibrary.SPARK);
+ f.checkScalar("date_add(date '2016-02-22', 2)",
+ "2016-02-24",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(date '2016-02-28', 2)",
+ "2016-03-01",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(date '2016-03-01', -2)",
+ "2016-02-28",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(date '2016-03-01', -2)",
+ "2016-02-28",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(date '2016-03-01', -2.0)",
+ "2016-02-28",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(date '2016-02-28', 2.0)",
+ "2016-03-01",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(date '2016-02-28', '2.0')",
+ "2016-03-01",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(timestamp '2016-02-22 13:00:01', '-2.0')",
+ "2016-02-20",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(timestamp '2016-02-22 13:00:01', -2)",
+ "2016-02-20",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(timestamp '2016-02-22 13:00:01', -2.0)",
+ "2016-02-20",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(date '0001-01-01', '-2.0')",
+ "0000-12-30",
+ "DATE NOT NULL");
+ f.checkScalar("date_add(date '0001-01-01', '-367')",
Review Comment:
> If a test passes that shouldn't it means that there's somewhere another
bug that is masking a problem.
agree.
I will fix it, the date function does validation when it handles 000/or 0000
as a parameter, but when 000/or 0000 is returned as a result, no such
validation is done, I think this is the bug
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