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a02b37fc08
Introduce unicode_version(), icu_unicode_version(), and unicode_assigned(). The latter requires introducing a new lookup table for the Unicode General Category, which is generated along with the other Unicode lookup tables. Discussion: https://postgr.es/m/CA+TgmoYzYR-yhU6k1XFCADeyj=Oyz2PkVsa3iKv+keM8wp-F_A@mail.gmail.com Reviewed-by: Peter Eisentraut
39 lines
1.3 KiB
SQL
39 lines
1.3 KiB
SQL
SELECT getdatabaseencoding() <> 'UTF8' AS skip_test \gset
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\if :skip_test
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\quit
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\endif
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SELECT U&'\0061\0308bc' <> U&'\00E4bc' COLLATE "C" AS sanity_check;
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SELECT unicode_version() IS NOT NULL;
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SELECT unicode_assigned(U&'abc');
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SELECT unicode_assigned(U&'abc\+10FFFF');
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SELECT normalize('');
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SELECT normalize(U&'\0061\0308\24D1c') = U&'\00E4\24D1c' COLLATE "C" AS test_default;
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SELECT normalize(U&'\0061\0308\24D1c', NFC) = U&'\00E4\24D1c' COLLATE "C" AS test_nfc;
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SELECT normalize(U&'\00E4bc', NFC) = U&'\00E4bc' COLLATE "C" AS test_nfc_idem;
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SELECT normalize(U&'\00E4\24D1c', NFD) = U&'\0061\0308\24D1c' COLLATE "C" AS test_nfd;
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SELECT normalize(U&'\0061\0308\24D1c', NFKC) = U&'\00E4bc' COLLATE "C" AS test_nfkc;
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SELECT normalize(U&'\00E4\24D1c', NFKD) = U&'\0061\0308bc' COLLATE "C" AS test_nfkd;
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SELECT "normalize"('abc', 'def'); -- run-time error
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SELECT U&'\00E4\24D1c' IS NORMALIZED AS test_default;
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SELECT U&'\00E4\24D1c' IS NFC NORMALIZED AS test_nfc;
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SELECT num, val,
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val IS NFC NORMALIZED AS NFC,
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val IS NFD NORMALIZED AS NFD,
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val IS NFKC NORMALIZED AS NFKC,
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val IS NFKD NORMALIZED AS NFKD
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FROM
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(VALUES (1, U&'\00E4bc'),
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(2, U&'\0061\0308bc'),
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(3, U&'\00E4\24D1c'),
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(4, U&'\0061\0308\24D1c'),
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(5, '')) vals (num, val)
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ORDER BY num;
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SELECT is_normalized('abc', 'def'); -- run-time error
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