2 * This test is for Linux/glibc systems and assumes that a full set of
3 * locales is installed. It must be run in a database with UTF-8 encoding,
4 * because other encodings don't support all the characters used.
7 SET client_encoding TO UTF8;
9 CREATE SCHEMA collate_tests;
10 SET search_path = collate_tests;
13 CREATE TABLE collate_test1 (
15 b text COLLATE "en_US" NOT NULL
20 CREATE TABLE collate_test_fail (
22 b text COLLATE "ja_JP.eucjp"
25 CREATE TABLE collate_test_fail (
30 CREATE TABLE collate_test_fail (
31 a int COLLATE "en_US",
35 CREATE TABLE collate_test_like (
41 CREATE TABLE collate_test2 (
43 b text COLLATE "sv_SE"
46 CREATE TABLE collate_test3 (
51 INSERT INTO collate_test1 VALUES (1, 'abc'), (2, 'äbc'), (3, 'bbc'), (4, 'ABC');
52 INSERT INTO collate_test2 SELECT * FROM collate_test1;
53 INSERT INTO collate_test3 SELECT * FROM collate_test1;
55 SELECT * FROM collate_test1 WHERE b >= 'bbc';
56 SELECT * FROM collate_test2 WHERE b >= 'bbc';
57 SELECT * FROM collate_test3 WHERE b >= 'bbc';
58 SELECT * FROM collate_test3 WHERE b >= 'BBC';
60 SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc';
61 SELECT * FROM collate_test1 WHERE b >= 'bbc' COLLATE "C";
62 SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc' COLLATE "C";
63 SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc' COLLATE "en_US";
66 CREATE DOMAIN testdomain_sv AS text COLLATE "sv_SE";
67 CREATE DOMAIN testdomain_i AS int COLLATE "sv_SE"; -- fails
68 CREATE TABLE collate_test4 (
72 INSERT INTO collate_test4 SELECT * FROM collate_test1;
73 SELECT a, b FROM collate_test4 ORDER BY b;
75 CREATE TABLE collate_test5 (
77 b testdomain_sv COLLATE "en_US"
79 INSERT INTO collate_test5 SELECT * FROM collate_test1;
80 SELECT a, b FROM collate_test5 ORDER BY b;
83 SELECT a, b FROM collate_test1 ORDER BY b;
84 SELECT a, b FROM collate_test2 ORDER BY b;
85 SELECT a, b FROM collate_test3 ORDER BY b;
87 SELECT a, b FROM collate_test1 ORDER BY b COLLATE "C";
90 SELECT * FROM collate_test1 ORDER BY b;
91 SELECT * FROM collate_test2 ORDER BY b;
92 SELECT * FROM collate_test3 ORDER BY b;
94 -- constant expression folding
95 SELECT 'bbc' COLLATE "en_US" > 'äbc' COLLATE "en_US" AS "true";
96 SELECT 'bbc' COLLATE "sv_SE" > 'äbc' COLLATE "sv_SE" AS "false";
100 CREATE TABLE collate_test10 (
102 x text COLLATE "en_US",
103 y text COLLATE "tr_TR"
106 INSERT INTO collate_test10 VALUES (1, 'hij', 'hij'), (2, 'HIJ', 'HIJ');
108 SELECT a, lower(x), lower(y), upper(x), upper(y), initcap(x), initcap(y) FROM collate_test10;
109 SELECT a, lower(x COLLATE "C"), lower(y COLLATE "C") FROM collate_test10;
111 SELECT a, x, y FROM collate_test10 ORDER BY lower(y), a;
115 SELECT * FROM collate_test1 WHERE b LIKE 'abc';
116 SELECT * FROM collate_test1 WHERE b LIKE 'abc%';
117 SELECT * FROM collate_test1 WHERE b LIKE '%bc%';
118 SELECT * FROM collate_test1 WHERE b ILIKE 'abc';
119 SELECT * FROM collate_test1 WHERE b ILIKE 'abc%';
120 SELECT * FROM collate_test1 WHERE b ILIKE '%bc%';
122 SELECT 'Türkiye' COLLATE "en_US" ILIKE '%KI%' AS "true";
123 SELECT 'Türkiye' COLLATE "tr_TR" ILIKE '%KI%' AS "false";
125 SELECT 'bıt' ILIKE 'BIT' COLLATE "en_US" AS "false";
126 SELECT 'bıt' ILIKE 'BIT' COLLATE "tr_TR" AS "true";
128 -- The following actually exercises the selectivity estimation for ILIKE.
129 SELECT relname FROM pg_class WHERE relname ILIKE 'abc%';
131 -- regular expressions
133 SELECT * FROM collate_test1 WHERE b ~ '^abc$';
134 SELECT * FROM collate_test1 WHERE b ~ '^abc';
135 SELECT * FROM collate_test1 WHERE b ~ 'bc';
136 SELECT * FROM collate_test1 WHERE b ~* '^abc$';
137 SELECT * FROM collate_test1 WHERE b ~* '^abc';
138 SELECT * FROM collate_test1 WHERE b ~* 'bc';
140 CREATE TABLE collate_test6 (
142 b text COLLATE "en_US"
144 INSERT INTO collate_test6 VALUES (1, 'abc'), (2, 'ABC'), (3, '123'), (4, 'ab1'),
145 (5, 'a1!'), (6, 'a c'), (7, '!.;'), (8, ' '),
146 (9, 'äbç'), (10, 'ÄBÇ');
148 b ~ '^[[:alpha:]]+$' AS is_alpha,
149 b ~ '^[[:upper:]]+$' AS is_upper,
150 b ~ '^[[:lower:]]+$' AS is_lower,
151 b ~ '^[[:digit:]]+$' AS is_digit,
152 b ~ '^[[:alnum:]]+$' AS is_alnum,
153 b ~ '^[[:graph:]]+$' AS is_graph,
154 b ~ '^[[:print:]]+$' AS is_print,
155 b ~ '^[[:punct:]]+$' AS is_punct,
156 b ~ '^[[:space:]]+$' AS is_space
159 SELECT 'Türkiye' COLLATE "en_US" ~* 'KI' AS "true";
160 SELECT 'Türkiye' COLLATE "tr_TR" ~* 'KI' AS "false";
162 SELECT 'bıt' ~* 'BIT' COLLATE "en_US" AS "false";
163 SELECT 'bıt' ~* 'BIT' COLLATE "tr_TR" AS "true";
165 -- The following actually exercises the selectivity estimation for ~*.
166 SELECT relname FROM pg_class WHERE relname ~* '^abc';
171 SET lc_time TO 'tr_TR';
172 SELECT to_char(date '2010-04-01', 'DD TMMON YYYY');
173 SELECT to_char(date '2010-04-01', 'DD TMMON YYYY' COLLATE "tr_TR");
178 CREATE VIEW collview1 AS SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc';
179 CREATE VIEW collview2 AS SELECT a, b FROM collate_test1 ORDER BY b COLLATE "C";
180 CREATE VIEW collview3 AS SELECT a, lower((x || x) COLLATE "C") FROM collate_test10;
182 SELECT table_name, view_definition FROM information_schema.views
183 WHERE table_name LIKE 'collview%' ORDER BY 1;
186 -- collation propagation in various expression types
188 SELECT a, coalesce(b, 'foo') FROM collate_test1 ORDER BY 2;
189 SELECT a, coalesce(b, 'foo') FROM collate_test2 ORDER BY 2;
190 SELECT a, coalesce(b, 'foo') FROM collate_test3 ORDER BY 2;
191 SELECT a, lower(coalesce(x, 'foo')), lower(coalesce(y, 'foo')) FROM collate_test10;
193 SELECT a, b, greatest(b, 'CCC') FROM collate_test1 ORDER BY 3;
194 SELECT a, b, greatest(b, 'CCC') FROM collate_test2 ORDER BY 3;
195 SELECT a, b, greatest(b, 'CCC') FROM collate_test3 ORDER BY 3;
196 SELECT a, x, y, lower(greatest(x, 'foo')), lower(greatest(y, 'foo')) FROM collate_test10;
198 SELECT a, nullif(b, 'abc') FROM collate_test1 ORDER BY 2;
199 SELECT a, nullif(b, 'abc') FROM collate_test2 ORDER BY 2;
200 SELECT a, nullif(b, 'abc') FROM collate_test3 ORDER BY 2;
201 SELECT a, lower(nullif(x, 'foo')), lower(nullif(y, 'foo')) FROM collate_test10;
203 SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test1 ORDER BY 2;
204 SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test2 ORDER BY 2;
205 SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test3 ORDER BY 2;
207 CREATE DOMAIN testdomain AS text;
208 SELECT a, b::testdomain FROM collate_test1 ORDER BY 2;
209 SELECT a, b::testdomain FROM collate_test2 ORDER BY 2;
210 SELECT a, b::testdomain FROM collate_test3 ORDER BY 2;
211 SELECT a, b::testdomain_sv FROM collate_test3 ORDER BY 2;
212 SELECT a, lower(x::testdomain), lower(y::testdomain) FROM collate_test10;
214 SELECT min(b), max(b) FROM collate_test1;
215 SELECT min(b), max(b) FROM collate_test2;
216 SELECT min(b), max(b) FROM collate_test3;
218 SELECT array_agg(b ORDER BY b) FROM collate_test1;
219 SELECT array_agg(b ORDER BY b) FROM collate_test2;
220 SELECT array_agg(b ORDER BY b) FROM collate_test3;
222 SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test1 ORDER BY 2;
223 SELECT a, b FROM collate_test2 UNION SELECT a, b FROM collate_test2 ORDER BY 2;
224 SELECT a, b FROM collate_test3 WHERE a < 4 INTERSECT SELECT a, b FROM collate_test3 WHERE a > 1 ORDER BY 2;
225 SELECT a, b FROM collate_test3 EXCEPT SELECT a, b FROM collate_test3 WHERE a < 2 ORDER BY 2;
227 SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test3 ORDER BY 2; -- fail
228 SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test3; -- ok
229 SELECT a, b FROM collate_test1 UNION SELECT a, b FROM collate_test3 ORDER BY 2; -- fail
230 SELECT a, b COLLATE "C" FROM collate_test1 UNION SELECT a, b FROM collate_test3 ORDER BY 2; -- ok
231 SELECT a, b FROM collate_test1 INTERSECT SELECT a, b FROM collate_test3 ORDER BY 2; -- fail
232 SELECT a, b FROM collate_test1 EXCEPT SELECT a, b FROM collate_test3 ORDER BY 2; -- fail
234 CREATE TABLE test_u AS SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test3; -- fail
236 -- ideally this would be a parse-time error, but for now it must be run-time:
237 select x < y from collate_test10; -- fail
238 select x || y from collate_test10; -- ok, because || is not collation aware
239 select x, y from collate_test10 order by x || y; -- not so ok
241 -- collation mismatch between recursive and non-recursive term
242 WITH RECURSIVE foo(x) AS
243 (SELECT x FROM (VALUES('a' COLLATE "en_US"),('b')) t(x)
245 SELECT (x || 'c') COLLATE "de_DE" FROM foo WHERE length(x) < 10)
251 SELECT CAST('42' AS text COLLATE "C");
253 SELECT a, CAST(b AS varchar) FROM collate_test1 ORDER BY 2;
254 SELECT a, CAST(b AS varchar) FROM collate_test2 ORDER BY 2;
255 SELECT a, CAST(b AS varchar) FROM collate_test3 ORDER BY 2;
258 -- propagation of collation in SQL functions (inlined and non-inlined cases)
259 -- and plpgsql functions too
261 CREATE FUNCTION mylt (text, text) RETURNS boolean LANGUAGE sql
262 AS $$ select $1 < $2 $$;
264 CREATE FUNCTION mylt_noninline (text, text) RETURNS boolean LANGUAGE sql
265 AS $$ select $1 < $2 limit 1 $$;
267 CREATE FUNCTION mylt_plpgsql (text, text) RETURNS boolean LANGUAGE plpgsql
268 AS $$ begin return $1 < $2; end $$;
270 SELECT a.b AS a, b.b AS b, a.b < b.b AS lt,
271 mylt(a.b, b.b), mylt_noninline(a.b, b.b), mylt_plpgsql(a.b, b.b)
272 FROM collate_test1 a, collate_test1 b
275 SELECT a.b AS a, b.b AS b, a.b < b.b COLLATE "C" AS lt,
276 mylt(a.b, b.b COLLATE "C"), mylt_noninline(a.b, b.b COLLATE "C"),
277 mylt_plpgsql(a.b, b.b COLLATE "C")
278 FROM collate_test1 a, collate_test1 b
282 -- collation override in plpgsql
284 CREATE FUNCTION mylt2 (x text, y text) RETURNS boolean LANGUAGE plpgsql AS $$
293 SELECT mylt2('a', 'B' collate "en_US") as t, mylt2('a', 'B' collate "C") as f;
295 CREATE OR REPLACE FUNCTION
296 mylt2 (x text, y text) RETURNS boolean LANGUAGE plpgsql AS $$
298 xx text COLLATE "POSIX" := x;
305 SELECT mylt2('a', 'B') as f;
306 SELECT mylt2('a', 'B' collate "C") as fail; -- conflicting collations
307 SELECT mylt2('a', 'B' collate "POSIX") as f;
312 SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test1)) ORDER BY 1;
313 SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test2)) ORDER BY 1;
314 SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test3)) ORDER BY 1;
316 CREATE FUNCTION dup (anyelement) RETURNS anyelement
317 AS 'select $1' LANGUAGE sql;
319 SELECT a, dup(b) FROM collate_test1 ORDER BY 2;
320 SELECT a, dup(b) FROM collate_test2 ORDER BY 2;
321 SELECT a, dup(b) FROM collate_test3 ORDER BY 2;
326 CREATE INDEX collate_test1_idx1 ON collate_test1 (b);
327 CREATE INDEX collate_test1_idx2 ON collate_test1 (b COLLATE "C");
328 CREATE INDEX collate_test1_idx3 ON collate_test1 ((b COLLATE "C")); -- this is different grammatically
329 CREATE INDEX collate_test1_idx4 ON collate_test1 (((b||'foo') COLLATE "POSIX"));
331 CREATE INDEX collate_test1_idx5 ON collate_test1 (a COLLATE "C"); -- fail
332 CREATE INDEX collate_test1_idx6 ON collate_test1 ((a COLLATE "C")); -- fail
334 SELECT relname, pg_get_indexdef(oid) FROM pg_class WHERE relname LIKE 'collate_test%_idx%' ORDER BY 1;
337 -- schema manipulation commands
339 CREATE ROLE regress_test_role;
340 CREATE SCHEMA test_schema;
342 -- We need to do this this way to cope with varying names for encodings:
345 EXECUTE 'CREATE COLLATION test0 (locale = ' ||
346 quote_literal(current_setting('lc_collate')) || ');';
349 CREATE COLLATION test0 FROM "C"; -- fail, duplicate name
350 CREATE COLLATION IF NOT EXISTS test0 FROM "C"; -- ok, skipped
351 CREATE COLLATION IF NOT EXISTS test0 (locale = 'foo'); -- ok, skipped
354 EXECUTE 'CREATE COLLATION test1 (lc_collate = ' ||
355 quote_literal(current_setting('lc_collate')) ||
357 quote_literal(current_setting('lc_ctype')) || ');';
360 CREATE COLLATION test3 (lc_collate = 'en_US.utf8'); -- fail, need lc_ctype
361 CREATE COLLATION testx (locale = 'nonsense'); -- fail
362 CREATE COLLATION testy (locale = 'en_US.utf8', version = 'foo'); -- fail, no versions for libc
364 CREATE COLLATION test4 FROM nonsense;
365 CREATE COLLATION test5 FROM test0;
367 SELECT collname FROM pg_collation WHERE collname LIKE 'test%' ORDER BY 1;
369 ALTER COLLATION test1 RENAME TO test11;
370 ALTER COLLATION test0 RENAME TO test11; -- fail
371 ALTER COLLATION test1 RENAME TO test22; -- fail
373 ALTER COLLATION test11 OWNER TO regress_test_role;
374 ALTER COLLATION test11 OWNER TO nonsense;
375 ALTER COLLATION test11 SET SCHEMA test_schema;
377 COMMENT ON COLLATION test0 IS 'US English';
379 SELECT collname, nspname, obj_description(pg_collation.oid, 'pg_collation')
380 FROM pg_collation JOIN pg_namespace ON (collnamespace = pg_namespace.oid)
381 WHERE collname LIKE 'test%'
384 DROP COLLATION test0, test_schema.test11, test5;
385 DROP COLLATION test0; -- fail
386 DROP COLLATION IF EXISTS test0;
388 SELECT collname FROM pg_collation WHERE collname LIKE 'test%';
390 DROP SCHEMA test_schema;
391 DROP ROLE regress_test_role;
396 ALTER COLLATION "en_US" REFRESH VERSION;
401 CREATE COLLATION test0 FROM "C";
403 CREATE TABLE collate_dep_test1 (a int, b text COLLATE test0);
404 CREATE DOMAIN collate_dep_dom1 AS text COLLATE test0;
405 CREATE TYPE collate_dep_test2 AS (x int, y text COLLATE test0);
406 CREATE VIEW collate_dep_test3 AS SELECT text 'foo' COLLATE test0 AS foo;
407 CREATE TABLE collate_dep_test4t (a int, b text);
408 CREATE INDEX collate_dep_test4i ON collate_dep_test4t (b COLLATE test0);
410 DROP COLLATION test0 RESTRICT; -- fail
411 DROP COLLATION test0 CASCADE;
416 DROP TABLE collate_dep_test1, collate_dep_test4t;
417 DROP TYPE collate_dep_test2;
419 -- test range types and collations
421 create type textrange_c as range(subtype=text, collation="C");
422 create type textrange_en_us as range(subtype=text, collation="en_US");
424 select textrange_c('A','Z') @> 'b'::text;
425 select textrange_en_us('A','Z') @> 'b'::text;
427 drop type textrange_c;
428 drop type textrange_en_us;
432 DROP SCHEMA collate_tests CASCADE;