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 UTF-8 locale.
6 SET client_encoding TO UTF8;
9 CREATE TABLE collate_test1 (
11 b text COLLATE "en_US.utf8" NOT NULL
16 CREATE TABLE collate_test_fail (
18 b text COLLATE "ja_JP.eucjp"
21 CREATE TABLE collate_test_fail (
26 CREATE TABLE collate_test_fail (
27 a int COLLATE "en_US.utf8",
31 CREATE TABLE collate_test_like (
37 CREATE TABLE collate_test2 (
39 b text COLLATE "sv_SE.utf8"
42 CREATE TABLE collate_test3 (
47 INSERT INTO collate_test1 VALUES (1, 'abc'), (2, 'äbc'), (3, 'bbc'), (4, 'ABC');
48 INSERT INTO collate_test2 SELECT * FROM collate_test1;
49 INSERT INTO collate_test3 SELECT * FROM collate_test1;
51 SELECT * FROM collate_test1 WHERE b >= 'bbc';
52 SELECT * FROM collate_test2 WHERE b >= 'bbc';
53 SELECT * FROM collate_test3 WHERE b >= 'bbc';
54 SELECT * FROM collate_test3 WHERE b >= 'BBC';
56 SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc';
57 SELECT * FROM collate_test1 WHERE b >= 'bbc' COLLATE "C";
58 SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc' COLLATE "C";
59 SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc' COLLATE "en_US.utf8";
60 SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc' COLLATE "en_US";
63 CREATE DOMAIN testdomain_sv AS text COLLATE "sv_SE.utf8";
64 CREATE DOMAIN testdomain_i AS int COLLATE "sv_SE.utf8"; -- fails
65 CREATE TABLE collate_test4 (
69 INSERT INTO collate_test4 SELECT * FROM collate_test1;
70 SELECT a, b FROM collate_test4 ORDER BY b;
72 CREATE TABLE collate_test5 (
74 b testdomain_sv COLLATE "en_US.utf8"
76 INSERT INTO collate_test5 SELECT * FROM collate_test1;
77 SELECT a, b FROM collate_test5 ORDER BY b;
80 SELECT a, b FROM collate_test1 ORDER BY b;
81 SELECT a, b FROM collate_test2 ORDER BY b;
82 SELECT a, b FROM collate_test3 ORDER BY b;
84 SELECT a, b FROM collate_test1 ORDER BY b COLLATE "C";
87 SELECT * FROM collate_test1 ORDER BY b;
88 SELECT * FROM collate_test2 ORDER BY b;
89 SELECT * FROM collate_test3 ORDER BY b;
91 -- constant expression folding
92 SELECT 'bbc' COLLATE "en_US.utf8" > 'äbc' COLLATE "en_US.utf8" AS "true";
93 SELECT 'bbc' COLLATE "sv_SE.utf8" > 'äbc' COLLATE "sv_SE.utf8" AS "false";
97 CREATE TABLE collate_test10 (
99 x text COLLATE "en_US.utf8",
100 y text COLLATE "tr_TR.utf8"
103 INSERT INTO collate_test10 VALUES (1, 'hij', 'hij'), (2, 'HIJ', 'HIJ');
105 SELECT a, lower(x), lower(y), upper(x), upper(y), initcap(x), initcap(y) FROM collate_test10;
106 SELECT a, lower(x COLLATE "C"), lower(y COLLATE "C") FROM collate_test10;
108 SELECT a, x, y FROM collate_test10 ORDER BY lower(y), a;
112 SELECT * FROM collate_test1 WHERE b LIKE 'abc';
113 SELECT * FROM collate_test1 WHERE b LIKE 'abc%';
114 SELECT * FROM collate_test1 WHERE b LIKE '%bc%';
115 SELECT * FROM collate_test1 WHERE b ILIKE 'abc';
116 SELECT * FROM collate_test1 WHERE b ILIKE 'abc%';
117 SELECT * FROM collate_test1 WHERE b ILIKE '%bc%';
119 SELECT 'Türkiye' COLLATE "en_US.utf8" ILIKE '%KI%' AS "true";
120 SELECT 'Türkiye' COLLATE "tr_TR.utf8" ILIKE '%KI%' AS "false";
122 -- The following actually exercises the selectivity estimation for ILIKE.
123 SELECT relname FROM pg_class WHERE relname ILIKE 'abc%';
128 SET lc_time TO 'tr_TR.utf8';
129 SELECT to_char(date '2010-04-01', 'DD TMMON YYYY');
130 SELECT to_char(date '2010-04-01', 'DD TMMON YYYY' COLLATE "tr_TR.utf8");
135 CREATE VIEW collview1 AS SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc';
136 CREATE VIEW collview2 AS SELECT a, b FROM collate_test1 ORDER BY b COLLATE "C";
137 CREATE VIEW collview3 AS SELECT a, lower((x || x) COLLATE "C") FROM collate_test10;
139 SELECT table_name, view_definition FROM information_schema.views
140 WHERE table_name LIKE 'collview%' ORDER BY 1;
143 -- collation propagation in various expression type
145 SELECT a, coalesce(b, 'foo') FROM collate_test1 ORDER BY 2;
146 SELECT a, coalesce(b, 'foo') FROM collate_test2 ORDER BY 2;
147 SELECT a, coalesce(b, 'foo') FROM collate_test3 ORDER BY 2;
148 SELECT a, lower(coalesce(x, 'foo')), lower(coalesce(y, 'foo')) FROM collate_test10;
150 SELECT a, b, greatest(b, 'CCC') FROM collate_test1 ORDER BY 3;
151 SELECT a, b, greatest(b, 'CCC') FROM collate_test2 ORDER BY 3;
152 SELECT a, b, greatest(b, 'CCC') FROM collate_test3 ORDER BY 3;
153 SELECT a, x, y, lower(greatest(x, 'foo')), lower(greatest(y, 'foo')) FROM collate_test10;
155 SELECT a, nullif(b, 'abc') FROM collate_test1 ORDER BY 2;
156 SELECT a, nullif(b, 'abc') FROM collate_test2 ORDER BY 2;
157 SELECT a, nullif(b, 'abc') FROM collate_test3 ORDER BY 2;
158 SELECT a, lower(nullif(x, 'foo')), lower(nullif(y, 'foo')) FROM collate_test10;
160 SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test1 ORDER BY 2;
161 SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test2 ORDER BY 2;
162 SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test3 ORDER BY 2;
164 CREATE DOMAIN testdomain AS text;
165 SELECT a, b::testdomain FROM collate_test1 ORDER BY 2;
166 SELECT a, b::testdomain FROM collate_test2 ORDER BY 2;
167 SELECT a, b::testdomain FROM collate_test3 ORDER BY 2;
168 SELECT a, b::testdomain_sv FROM collate_test3 ORDER BY 2;
169 SELECT a, lower(x::testdomain), lower(y::testdomain) FROM collate_test10;
171 SELECT min(b), max(b) FROM collate_test1;
172 SELECT min(b), max(b) FROM collate_test2;
173 SELECT min(b), max(b) FROM collate_test3;
175 SELECT array_agg(b ORDER BY b) FROM collate_test1;
176 SELECT array_agg(b ORDER BY b) FROM collate_test2;
177 SELECT array_agg(b ORDER BY b) FROM collate_test3;
179 SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test1 ORDER BY 2;
180 SELECT a, b FROM collate_test2 UNION SELECT a, b FROM collate_test2 ORDER BY 2;
181 SELECT a, b FROM collate_test3 WHERE a < 4 INTERSECT SELECT a, b FROM collate_test3 WHERE a > 1 ORDER BY 2;
182 SELECT a, b FROM collate_test3 EXCEPT SELECT a, b FROM collate_test3 WHERE a < 2 ORDER BY 2;
184 SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test3 ORDER BY 2; -- fail
185 SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test3; -- ok
186 SELECT a, b FROM collate_test1 UNION SELECT a, b FROM collate_test3 ORDER BY 2; -- fail
187 SELECT a, b COLLATE "C" FROM collate_test1 UNION SELECT a, b FROM collate_test3 ORDER BY 2; -- ok
188 SELECT a, b FROM collate_test1 INTERSECT SELECT a, b FROM collate_test3 ORDER BY 2; -- fail
189 SELECT a, b FROM collate_test1 EXCEPT SELECT a, b FROM collate_test3 ORDER BY 2; -- fail
194 SELECT CAST('42' AS text COLLATE "C");
196 SELECT a, CAST(b AS varchar) FROM collate_test1 ORDER BY 2;
197 SELECT a, CAST(b AS varchar) FROM collate_test2 ORDER BY 2;
198 SELECT a, CAST(b AS varchar) FROM collate_test3 ORDER BY 2;
203 SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test1)) ORDER BY 1;
204 SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test2)) ORDER BY 1;
205 SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test3)) ORDER BY 1;
207 CREATE FUNCTION dup (f1 anyelement, f2 out anyelement, f3 out anyarray)
208 AS 'select $1, array[$1,$1]' LANGUAGE sql;
210 SELECT a, (dup(b)).* FROM collate_test1 ORDER BY 2;
211 SELECT a, (dup(b)).* FROM collate_test2 ORDER BY 2;
212 SELECT a, (dup(b)).* FROM collate_test3 ORDER BY 2;
217 CREATE INDEX collate_test1_idx1 ON collate_test1 (b);
218 CREATE INDEX collate_test1_idx2 ON collate_test1 (b COLLATE "C");
219 CREATE INDEX collate_test1_idx3 ON collate_test1 ((b COLLATE "C")); -- this is different grammatically
221 CREATE INDEX collate_test1_idx4 ON collate_test1 (a COLLATE "C"); -- fail
222 CREATE INDEX collate_test1_idx5 ON collate_test1 ((a COLLATE "C")); -- fail
224 SELECT relname, pg_get_indexdef(oid) FROM pg_class WHERE relname LIKE 'collate_test%_idx%';