[Enhancement] support iso week function, add sql-test null and empty-…

…string case (StarRocks#20511) Signed-off-by: qmengss <707549024@qq.com>
qmengss · May 4, 2023 · 31adca7 · 31adca7
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diff --git a/test/sql/test_time_fn/R/test_time_fn b/test/sql/test_time_fn/R/test_time_fn
@@ -696,3 +696,13 @@ select week_iso("2023-01-03");
 -- result:
 1
 -- !result
+select week_iso("");
+-- result:
+NULL
+-- !result
+select week_iso(NULL);
+-- result:
+NULL
+-- !result
+
+
diff --git a/test/sql/test_time_fn/T/test_time_fn b/test/sql/test_time_fn/T/test_time_fn
@@ -187,3 +187,5 @@ select d1, dow_2, previous_day(d1, dow_2) from previous_day_test a join previous
 select week_iso("2023-01-01");
 select week_iso("2023-01-02");
 select week_iso("2023-01-03");
+select week_iso("");
+select week_iso(NULL);