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test: cover invalid unhex inputs in SQL file tests #4890

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test: cover invalid unhex inputs in SQL file tests #4890

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6 changes: 5 additions & 1 deletion spark/src/test/resources/sql-tests/expressions/string/unhex.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ statement
CREATE TABLE test_unhex(s string) USING parquet

statement
INSERT INTO test_unhex VALUES ('537061726B2053514C'), ('41'), ('0A1B'), (''), (NULL), ('GG'), ('hello'), ('A1B')
INSERT INTO test_unhex VALUES ('537061726B2053514C'), ('41'), ('0A1B'), (''), (NULL), ('GG'), ('hello'), ('A1B'), ('-123'), ('\0')

query
SELECT hex(unhex(s)) FROM test_unhex
Expand All @@ -30,3 +30,7 @@ SELECT unhex(s) IS NULL FROM test_unhex
-- literal arguments
query
SELECT unhex('41'), unhex('GG'), unhex(''), unhex(NULL)

-- invalid inputs: non-hex characters and the null character both return NULL
query
SELECT unhex('-123'), unhex('\0')
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