Anthrino commented on code in PR #3369:
URL: https://github.com/apache/calcite/pull/3369#discussion_r1310628458
##########
testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
##########
@@ -4568,6 +4568,25 @@ private static void checkIf(SqlOperatorFixture f) {
f.checkNull("regexp_contains(cast(null as varchar), cast(null as
varchar))");
}
+ @Test void testRegexpExtractFunc() {
+ final SqlOperatorFixture f =
+
fixture().setFor(SqlLibraryOperators.REGEXP_EXTRACT).withLibrary(SqlLibrary.BIG_QUERY);
+
+ f.checkString("regexp_extract('abc def ghi', 'def')", "def", "VARCHAR NOT
NULL");
+ f.checkString("regexp_extract('abcadcaecghi', 'a.c', 1, 3)", "aec",
"VARCHAR NOT NULL");
+ f.checkString("regexp_extract('abcadcaecghi', 'abc(a.c)')", "adc",
"VARCHAR NOT NULL");
+ f.checkString("regexp_extract('55as56664as422', '\\d{3}')", "566",
"VARCHAR NOT NULL");
+
+ f.checkNull("regexp_extract('abc def ghi', 'asd')");
+ f.checkNull("regexp_extract('abc def ghi', cast(null as varchar))");
Review Comment:
Added additional cases to cover the optional arguments, appreciate the
feedback!
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