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-- to you under the Apache License, Version 2.0 (the
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--
--   http://www.apache.org/licenses/LICENSE-2.0
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-- regexp_substr is RuntimeReplaceable (NullIf(RegExpExtract(..., 0), "")). Verify Comet runs it
-- natively and matches Spark, including the no-match case which returns NULL.

-- MinSparkVersion: 3.5

statement
CREATE TABLE test_regexp_substr(s string) USING parquet

statement
INSERT INTO test_regexp_substr VALUES ('Steven Jones and Stephen Smith'), ('no match here'), (''), (NULL)

query
SELECT s, regexp_substr(s, 'Ste(v|ph)en') FROM test_regexp_substr

query
SELECT regexp_substr('user@spark.apache.org', '@[^.]*'), regexp_substr('hello', 'zzz')
