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Fix bug in support for collation attributes on older ICU versions
Unrecognized attribute names are supposed to be ignored. But the code would error out on an unrecognized attribute value even if it did not recognize the attribute name. So unrecognized attributes wouldn't really be ignored unless the value happened to be one that matched a recognized value. This would break some important cases where the attribute would be processed by ucol_open() directly. Fix that and add a test case. The restructured code should also avoid compiler warnings about initializing a UColAttribute value to -1, because the type might be an unsigned enum. (reported by Andres Freund)
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@ -1101,6 +1101,7 @@ select textrange_en_us('A','Z') @> 'b'::text;
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drop type textrange_c;
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drop type textrange_en_us;
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-- test ICU collation customization
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-- test the attributes handled by icu_set_collation_attributes()
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CREATE COLLATION testcoll_ignore_accents (provider = icu, locale = '@colStrength=primary;colCaseLevel=yes');
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SELECT 'aaá' > 'AAA' COLLATE "und-x-icu", 'aaá' < 'AAA' COLLATE testcoll_ignore_accents;
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?column? | ?column?
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@ -1139,6 +1140,15 @@ SELECT 'A-21' > 'A-123' COLLATE "und-x-icu", 'A-21' < 'A-123' COLLATE testcoll_n
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CREATE COLLATION testcoll_error1 (provider = icu, locale = '@colNumeric=lower');
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ERROR: could not open collator for locale "@colNumeric=lower": U_ILLEGAL_ARGUMENT_ERROR
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-- test that attributes not handled by icu_set_collation_attributes()
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-- (handled by ucol_open() directly) also work
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CREATE COLLATION testcoll_de_phonebook (provider = icu, locale = 'de@collation=phonebook');
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SELECT 'Goldmann' < 'Götz' COLLATE "de-x-icu", 'Goldmann' > 'Götz' COLLATE testcoll_de_phonebook;
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?column? | ?column?
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----------+----------
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t | t
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(1 row)
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-- cleanup
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SET client_min_messages TO warning;
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DROP SCHEMA collate_tests CASCADE;
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@ -427,6 +427,8 @@ drop type textrange_en_us;
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-- test ICU collation customization
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-- test the attributes handled by icu_set_collation_attributes()
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CREATE COLLATION testcoll_ignore_accents (provider = icu, locale = '@colStrength=primary;colCaseLevel=yes');
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SELECT 'aaá' > 'AAA' COLLATE "und-x-icu", 'aaá' < 'AAA' COLLATE testcoll_ignore_accents;
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@ -445,6 +447,11 @@ SELECT 'A-21' > 'A-123' COLLATE "und-x-icu", 'A-21' < 'A-123' COLLATE testcoll_n
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CREATE COLLATION testcoll_error1 (provider = icu, locale = '@colNumeric=lower');
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-- test that attributes not handled by icu_set_collation_attributes()
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-- (handled by ucol_open() directly) also work
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CREATE COLLATION testcoll_de_phonebook (provider = icu, locale = 'de@collation=phonebook');
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SELECT 'Goldmann' < 'Götz' COLLATE "de-x-icu", 'Goldmann' > 'Götz' COLLATE testcoll_de_phonebook;
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-- cleanup
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SET client_min_messages TO warning;
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