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SELECT "normalize"('abc', 'def'); -- run-time error
SELECT U&'\00E4\24D1c' IS NFC NORMALIZED AS test_nfc;
SELECT num, val,
val IS NFC NORMALIZED AS NFC,
val IS NFD NORMALIZED AS NFD,
val IS NFKC NORMALIZED AS NFKC,
val IS NFKD NORMALIZED AS NFKD
FROM
(VALUES (1, U&'\00E4bc'),
(2, U&'\0061\0308bc'),
(3, U&'\00E4\24D1c'),
(4, U&'\0061\0308\24D1c'),
(5, '')) vals (num, val)
ORDER BY num;
SELECT is_normalized('abc', 'def'); -- run-time error
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