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b0f6c43716
The GUC settings lc_collate and lc_ctype are from a time when those locale settings were cluster-global. When those locale settings were made per-database (PG 8.4), the settings were kept as read-only. As of PG 15, you can use ICU as the per-database locale provider, so examining these settings is already less meaningful and possibly confusing, since you need to look into pg_database to find out what is really happening, and they would likely become fully obsolete in the future anyway. Reviewed-by: Jeff Davis <pgsql@j-davis.com> Discussion: https://www.postgresql.org/message-id/696054d1-bc88-b6ab-129a-18b8bce6a6f0@enterprisedb.com
59 lines
2.2 KiB
SQL
59 lines
2.2 KiB
SQL
/*
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* This test must be run in a database with UTF-8 encoding
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* and a Unicode-aware locale.
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*
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* Also disable this file for ICU, because the test for the the
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* Turkish dotted I is not correct for many ICU locales. citext always
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* uses the default collation, so it's not easy to restrict the test
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* to the "tr-TR-x-icu" collation where it will succeed.
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*/
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SELECT getdatabaseencoding() <> 'UTF8' OR
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(SELECT (datlocprovider = 'c' AND datctype = 'C') OR datlocprovider = 'i'
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FROM pg_database
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WHERE datname=current_database())
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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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set client_encoding = utf8;
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-- CREATE EXTENSION IF NOT EXISTS citext;
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-- Multibyte sanity tests.
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SELECT 'À'::citext = 'À'::citext AS t;
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SELECT 'À'::citext = 'à'::citext AS t;
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SELECT 'À'::text = 'à'::text AS f; -- text wins.
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SELECT 'À'::citext <> 'B'::citext AS t;
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-- Test combining characters making up canonically equivalent strings.
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SELECT 'Ä'::text <> 'Ä'::text AS t;
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SELECT 'Ä'::citext <> 'Ä'::citext AS t;
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-- Test the Turkish dotted I. The lowercase is a single byte while the
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-- uppercase is multibyte. This is why the comparison code can't be optimized
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-- to compare string lengths.
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SELECT 'i'::citext = 'İ'::citext AS t;
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-- Regression.
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SELECT 'láska'::citext <> 'laská'::citext AS t;
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SELECT 'Ask Bjørn Hansen'::citext = 'Ask Bjørn Hansen'::citext AS t;
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SELECT 'Ask Bjørn Hansen'::citext = 'ASK BJØRN HANSEN'::citext AS t;
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SELECT 'Ask Bjørn Hansen'::citext <> 'Ask Bjorn Hansen'::citext AS t;
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SELECT 'Ask Bjørn Hansen'::citext <> 'ASK BJORN HANSEN'::citext AS t;
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SELECT citext_cmp('Ask Bjørn Hansen'::citext, 'Ask Bjørn Hansen'::citext) = 0 AS t;
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SELECT citext_cmp('Ask Bjørn Hansen'::citext, 'ask bjørn hansen'::citext) = 0 AS t;
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SELECT citext_cmp('Ask Bjørn Hansen'::citext, 'ASK BJØRN HANSEN'::citext) = 0 AS t;
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SELECT citext_cmp('Ask Bjørn Hansen'::citext, 'Ask Bjorn Hansen'::citext) > 0 AS t;
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SELECT citext_cmp('Ask Bjorn Hansen'::citext, 'Ask Bjørn Hansen'::citext) < 0 AS t;
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-- Test ~<~ and ~<=~
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SELECT 'à'::citext ~<~ 'À'::citext AS f;
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SELECT 'à'::citext ~<=~ 'À'::citext AS t;
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-- Test ~>~ and ~>=~
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SELECT 'à'::citext ~>~ 'À'::citext AS f;
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SELECT 'à'::citext ~>=~ 'À'::citext AS t;
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