Add some platform-independent tests for the collation feature.
There's a lot we can't test very well without platform dependencies, but the C/POSIX collations should now work the same way everywhere.
This commit is contained in:
Tom Lane
parent
82e4d45bd0
commit
9b095fbea4
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/*
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* This test is intended to pass on all platforms supported by Postgres.
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* We can therefore only assume that the default, C, and POSIX collations
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* are available --- and since the regression tests are often run in a
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* C-locale database, these may well all have the same behavior. But
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* fortunately, the system doesn't know that and will treat them as
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* incompatible collations. It is therefore at least possible to test
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* parser behaviors such as collation conflict resolution. This test will,
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* however, be more revealing when run in a database with non-C locale,
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* since any departure from C sorting behavior will show as a failure.
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*/
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CREATE SCHEMA collate_tests;
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SET search_path = collate_tests;
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CREATE TABLE collate_test1 (
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a int,
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b text COLLATE "C" NOT NULL
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);
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\d collate_test1
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Table "collate_tests.collate_test1"
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Column | Type | Modifiers
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--------+---------+--------------------
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a | integer |
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b | text | collate C not null
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CREATE TABLE collate_test_fail (
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a int COLLATE "C",
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b text
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);
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ERROR: collations are not supported by type integer
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LINE 2: a int COLLATE "C",
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^
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CREATE TABLE collate_test_like (
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LIKE collate_test1
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);
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\d collate_test_like
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Table "collate_tests.collate_test_like"
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Column | Type | Modifiers
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--------+---------+--------------------
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a | integer |
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b | text | collate C not null
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CREATE TABLE collate_test2 (
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a int,
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b text COLLATE "POSIX"
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);
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INSERT INTO collate_test1 VALUES (1, 'abc'), (2, 'Abc'), (3, 'bbc'), (4, 'ABD');
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INSERT INTO collate_test2 SELECT * FROM collate_test1;
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SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'abc';
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a | b
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---+-----
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1 | abc
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3 | bbc
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(2 rows)
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SELECT * FROM collate_test1 WHERE b >= 'abc' COLLATE "C";
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a | b
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---+-----
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1 | abc
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3 | bbc
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(2 rows)
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SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'abc' COLLATE "C";
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a | b
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---+-----
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1 | abc
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3 | bbc
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(2 rows)
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SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc' COLLATE "POSIX"; -- fail
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ERROR: collation mismatch between explicit collations "C" and "POSIX"
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LINE 1: ...* FROM collate_test1 WHERE b COLLATE "C" >= 'bbc' COLLATE "P...
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^
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CREATE DOMAIN testdomain_p AS text COLLATE "POSIX";
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CREATE DOMAIN testdomain_i AS int COLLATE "POSIX"; -- fail
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ERROR: collations are not supported by type integer
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CREATE TABLE collate_test4 (
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a int,
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b testdomain_p
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);
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INSERT INTO collate_test4 SELECT * FROM collate_test1;
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SELECT a, b FROM collate_test4 ORDER BY b;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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CREATE TABLE collate_test5 (
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a int,
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b testdomain_p COLLATE "C"
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);
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INSERT INTO collate_test5 SELECT * FROM collate_test1;
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SELECT a, b FROM collate_test5 ORDER BY b;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, b FROM collate_test1 ORDER BY b;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, b FROM collate_test2 ORDER BY b;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, b FROM collate_test1 ORDER BY b COLLATE "C";
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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-- star expansion
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SELECT * FROM collate_test1 ORDER BY b;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT * FROM collate_test2 ORDER BY b;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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-- constant expression folding
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SELECT 'bbc' COLLATE "C" > 'Abc' COLLATE "C" AS "true";
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true
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------
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t
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(1 row)
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SELECT 'bbc' COLLATE "POSIX" < 'Abc' COLLATE "POSIX" AS "false";
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false
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-------
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f
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(1 row)
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-- upper/lower
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CREATE TABLE collate_test10 (
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a int,
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x text COLLATE "C",
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y text COLLATE "POSIX"
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);
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INSERT INTO collate_test10 VALUES (1, 'hij', 'hij'), (2, 'HIJ', 'HIJ');
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SELECT a, lower(x), lower(y), upper(x), upper(y), initcap(x), initcap(y) FROM collate_test10;
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a | lower | lower | upper | upper | initcap | initcap
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---+-------+-------+-------+-------+---------+---------
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1 | hij | hij | HIJ | HIJ | Hij | Hij
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2 | hij | hij | HIJ | HIJ | Hij | Hij
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(2 rows)
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SELECT a, lower(x COLLATE "C"), lower(y COLLATE "C") FROM collate_test10;
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a | lower | lower
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---+-------+-------
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1 | hij | hij
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2 | hij | hij
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(2 rows)
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SELECT a, x, y FROM collate_test10 ORDER BY lower(y), a;
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a | x | y
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---+-----+-----
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1 | hij | hij
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2 | HIJ | HIJ
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(2 rows)
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-- backwards parsing
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CREATE VIEW collview1 AS SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc';
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CREATE VIEW collview2 AS SELECT a, b FROM collate_test1 ORDER BY b COLLATE "C";
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CREATE VIEW collview3 AS SELECT a, lower((x || x) COLLATE "POSIX") FROM collate_test10;
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SELECT table_name, view_definition FROM information_schema.views
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WHERE table_name LIKE 'collview%' ORDER BY 1;
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table_name | view_definition
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------------+------------------------------------------------------------------------------------------------------------------------
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collview1 | SELECT collate_test1.a, collate_test1.b FROM collate_test1 WHERE ((collate_test1.b COLLATE "C") >= 'bbc'::text);
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collview2 | SELECT collate_test1.a, collate_test1.b FROM collate_test1 ORDER BY (collate_test1.b COLLATE "C");
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collview3 | SELECT collate_test10.a, lower(((collate_test10.x || collate_test10.x) COLLATE "POSIX")) AS lower FROM collate_test10;
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(3 rows)
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-- collation propagation in various expression type
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SELECT a, coalesce(b, 'foo') FROM collate_test1 ORDER BY 2;
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a | coalesce
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---+----------
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, coalesce(b, 'foo') FROM collate_test2 ORDER BY 2;
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a | coalesce
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---+----------
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, lower(coalesce(x, 'foo')), lower(coalesce(y, 'foo')) FROM collate_test10;
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a | lower | lower
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---+-------+-------
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1 | hij | hij
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2 | hij | hij
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(2 rows)
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SELECT a, b, greatest(b, 'CCC') FROM collate_test1 ORDER BY 3;
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a | b | greatest
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---+-----+----------
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2 | Abc | CCC
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4 | ABD | CCC
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1 | abc | abc
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3 | bbc | bbc
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(4 rows)
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SELECT a, b, greatest(b, 'CCC') FROM collate_test2 ORDER BY 3;
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a | b | greatest
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---+-----+----------
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2 | Abc | CCC
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4 | ABD | CCC
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1 | abc | abc
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3 | bbc | bbc
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(4 rows)
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SELECT a, x, y, lower(greatest(x, 'foo')), lower(greatest(y, 'foo')) FROM collate_test10;
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a | x | y | lower | lower
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---+-----+-----+-------+-------
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1 | hij | hij | hij | hij
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2 | HIJ | HIJ | foo | foo
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(2 rows)
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SELECT a, nullif(b, 'abc') FROM collate_test1 ORDER BY 2;
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a | nullif
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---+--------
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4 | ABD
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2 | Abc
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3 | bbc
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1 |
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(4 rows)
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SELECT a, nullif(b, 'abc') FROM collate_test2 ORDER BY 2;
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a | nullif
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---+--------
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4 | ABD
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2 | Abc
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3 | bbc
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1 |
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(4 rows)
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SELECT a, lower(nullif(x, 'foo')), lower(nullif(y, 'foo')) FROM collate_test10;
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a | lower | lower
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---+-------+-------
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1 | hij | hij
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2 | hij | hij
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(2 rows)
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SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test1 ORDER BY 2;
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a | b
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---+------
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4 | ABD
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2 | Abc
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1 | abcd
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3 | bbc
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(4 rows)
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SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test2 ORDER BY 2;
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a | b
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---+------
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4 | ABD
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2 | Abc
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1 | abcd
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3 | bbc
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(4 rows)
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CREATE DOMAIN testdomain AS text;
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SELECT a, b::testdomain FROM collate_test1 ORDER BY 2;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, b::testdomain FROM collate_test2 ORDER BY 2;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, b::testdomain_p FROM collate_test2 ORDER BY 2;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, lower(x::testdomain), lower(y::testdomain) FROM collate_test10;
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a | lower | lower
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---+-------+-------
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1 | hij | hij
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2 | hij | hij
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(2 rows)
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SELECT min(b), max(b) FROM collate_test1;
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min | max
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-----+-----
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ABD | bbc
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(1 row)
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SELECT min(b), max(b) FROM collate_test2;
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min | max
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-----+-----
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ABD | bbc
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(1 row)
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SELECT array_agg(b ORDER BY b) FROM collate_test1;
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array_agg
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-------------------
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{ABD,Abc,abc,bbc}
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(1 row)
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SELECT array_agg(b ORDER BY b) FROM collate_test2;
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array_agg
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-------------------
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{ABD,Abc,abc,bbc}
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(1 row)
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SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test1 ORDER BY 2;
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a | b
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---+-----
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4 | ABD
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4 | ABD
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2 | Abc
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2 | Abc
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1 | abc
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1 | abc
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3 | bbc
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3 | bbc
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(8 rows)
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SELECT a, b FROM collate_test2 UNION SELECT a, b FROM collate_test2 ORDER BY 2;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, b FROM collate_test2 WHERE a < 4 INTERSECT SELECT a, b FROM collate_test2 WHERE a > 1 ORDER BY 2;
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a | b
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---+-----
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2 | Abc
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3 | bbc
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(2 rows)
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SELECT a, b FROM collate_test2 EXCEPT SELECT a, b FROM collate_test2 WHERE a < 2 ORDER BY 2;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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3 | bbc
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(3 rows)
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SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test2 ORDER BY 2; -- fail
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ERROR: locale operation to be invoked, but no collation was derived
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SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test2; -- ok
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a | b
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---+-----
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1 | abc
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2 | Abc
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3 | bbc
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4 | ABD
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1 | abc
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2 | Abc
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3 | bbc
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4 | ABD
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(8 rows)
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SELECT a, b FROM collate_test1 UNION SELECT a, b FROM collate_test2 ORDER BY 2; -- fail
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ERROR: collation mismatch between implicit collations "C" and "POSIX"
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LINE 1: SELECT a, b FROM collate_test1 UNION SELECT a, b FROM collat...
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^
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HINT: You can choose the collation by applying the COLLATE clause to one or both expressions.
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SELECT a, b COLLATE "C" FROM collate_test1 UNION SELECT a, b FROM collate_test2 ORDER BY 2; -- ok
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, b FROM collate_test1 INTERSECT SELECT a, b FROM collate_test2 ORDER BY 2; -- fail
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ERROR: collation mismatch between implicit collations "C" and "POSIX"
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LINE 1: ...ELECT a, b FROM collate_test1 INTERSECT SELECT a, b FROM col...
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^
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HINT: You can choose the collation by applying the COLLATE clause to one or both expressions.
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SELECT a, b FROM collate_test1 EXCEPT SELECT a, b FROM collate_test2 ORDER BY 2; -- fail
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ERROR: collation mismatch between implicit collations "C" and "POSIX"
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LINE 1: SELECT a, b FROM collate_test1 EXCEPT SELECT a, b FROM colla...
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^
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HINT: You can choose the collation by applying the COLLATE clause to one or both expressions.
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CREATE TABLE test_u AS SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test2; -- fail
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ERROR: no collation was derived for column "b" with collatable type text
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HINT: Use the COLLATE clause to set the collation explicitly.
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-- ideally this would be a parse-time error, but for now it must be run-time:
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select x < y from collate_test10; -- fail
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ERROR: locale operation to be invoked, but no collation was derived
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select x || y from collate_test10; -- ok, because || is not collation aware
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?column?
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----------
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hijhij
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HIJHIJ
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(2 rows)
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-- collation mismatch between recursive and non-recursive term
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WITH RECURSIVE foo(x) AS
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(SELECT x FROM (VALUES('a' COLLATE "C"),('b')) t(x)
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UNION ALL
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SELECT (x || 'c') COLLATE "POSIX" FROM foo WHERE length(x) < 10)
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SELECT * FROM foo;
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ERROR: recursive query "foo" column 1 has collation "C" in non-recursive term but collation "POSIX" overall
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LINE 2: (SELECT x FROM (VALUES('a' COLLATE "C"),('b')) t(x)
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^
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HINT: Use the COLLATE clause to set the collation of the non-recursive term.
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-- casting
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SELECT CAST('42' AS text COLLATE "C");
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ERROR: syntax error at or near "COLLATE"
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LINE 1: SELECT CAST('42' AS text COLLATE "C");
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^
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SELECT a, CAST(b AS varchar) FROM collate_test1 ORDER BY 2;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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SELECT a, CAST(b AS varchar) FROM collate_test2 ORDER BY 2;
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a | b
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---+-----
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4 | ABD
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2 | Abc
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1 | abc
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3 | bbc
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(4 rows)
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-- polymorphism
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SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test1)) ORDER BY 1;
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unnest
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--------
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ABD
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Abc
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abc
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bbc
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(4 rows)
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SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test2)) ORDER BY 1;
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unnest
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--------
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ABD
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Abc
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abc
|
||||
bbc
|
||||
(4 rows)
|
||||
|
||||
CREATE FUNCTION dup (f1 anyelement, f2 out anyelement, f3 out anyarray)
|
||||
AS 'select $1, array[$1,$1]' LANGUAGE sql;
|
||||
SELECT a, (dup(b)).* FROM collate_test1 ORDER BY 2;
|
||||
a | f2 | f3
|
||||
---+-----+-----------
|
||||
4 | ABD | {ABD,ABD}
|
||||
2 | Abc | {Abc,Abc}
|
||||
1 | abc | {abc,abc}
|
||||
3 | bbc | {bbc,bbc}
|
||||
(4 rows)
|
||||
|
||||
SELECT a, (dup(b)).* FROM collate_test2 ORDER BY 2;
|
||||
a | f2 | f3
|
||||
---+-----+-----------
|
||||
4 | ABD | {ABD,ABD}
|
||||
2 | Abc | {Abc,Abc}
|
||||
1 | abc | {abc,abc}
|
||||
3 | bbc | {bbc,bbc}
|
||||
(4 rows)
|
||||
|
||||
-- indexes
|
||||
CREATE INDEX collate_test1_idx1 ON collate_test1 (b);
|
||||
CREATE INDEX collate_test1_idx2 ON collate_test1 (b COLLATE "C");
|
||||
CREATE INDEX collate_test1_idx3 ON collate_test1 ((b COLLATE "C")); -- this is different grammatically
|
||||
CREATE INDEX collate_test1_idx4 ON collate_test1 (a COLLATE "C"); -- fail
|
||||
ERROR: collations are not supported by type integer
|
||||
CREATE INDEX collate_test1_idx5 ON collate_test1 ((a COLLATE "C")); -- fail
|
||||
ERROR: collations are not supported by type integer
|
||||
LINE 1: ...ATE INDEX collate_test1_idx5 ON collate_test1 ((a COLLATE "C...
|
||||
^
|
||||
SELECT relname, pg_get_indexdef(oid) FROM pg_class WHERE relname LIKE 'collate_test%_idx%';
|
||||
relname | pg_get_indexdef
|
||||
--------------------+----------------------------------------------------------------------------------------------
|
||||
collate_test1_idx1 | CREATE INDEX collate_test1_idx1 ON collate_test1 USING btree (b)
|
||||
collate_test1_idx2 | CREATE INDEX collate_test1_idx2 ON collate_test1 USING btree (b)
|
||||
collate_test1_idx3 | CREATE INDEX collate_test1_idx3 ON collate_test1 USING btree (((b COLLATE "C")) COLLATE "C")
|
||||
(3 rows)
|
||||
|
||||
--
|
||||
-- Clean up. Many of these table names will be re-used if the user is
|
||||
-- trying to run any platform-specific collation tests later, so we
|
||||
-- must get rid of them.
|
||||
--
|
||||
DROP SCHEMA collate_tests CASCADE;
|
||||
NOTICE: drop cascades to 12 other objects
|
||||
DETAIL: drop cascades to table collate_test1
|
||||
drop cascades to table collate_test_like
|
||||
drop cascades to table collate_test2
|
||||
drop cascades to type testdomain_p
|
||||
drop cascades to table collate_test4
|
||||
drop cascades to table collate_test5
|
||||
drop cascades to table collate_test10
|
||||
drop cascades to view collview1
|
||||
drop cascades to view collview2
|
||||
drop cascades to view collview3
|
||||
drop cascades to type testdomain
|
||||
drop cascades to function dup(anyelement)
|
||||
|
|
@ -76,7 +76,11 @@ ignore: random
|
|||
# ----------
|
||||
test: select_into select_distinct select_distinct_on select_implicit select_having subselect union case join aggregates transactions random portals arrays btree_index hash_index update namespace prepared_xacts delete
|
||||
|
||||
test: privileges security_label
|
||||
# ----------
|
||||
# Another group of parallel tests
|
||||
# ----------
|
||||
test: privileges security_label collate
|
||||
|
||||
test: misc
|
||||
# rules cannot run concurrently with any test that creates a view
|
||||
test: rules
|
||||
|
|
|
|||
|
|
@ -89,6 +89,7 @@ test: namespace
|
|||
test: prepared_xacts
|
||||
test: privileges
|
||||
test: security_label
|
||||
test: collate
|
||||
test: misc
|
||||
test: rules
|
||||
test: select_views
|
||||
|
|
|
|||
|
|
@ -0,0 +1,193 @@
|
|||
/*
|
||||
* This test is intended to pass on all platforms supported by Postgres.
|
||||
* We can therefore only assume that the default, C, and POSIX collations
|
||||
* are available --- and since the regression tests are often run in a
|
||||
* C-locale database, these may well all have the same behavior. But
|
||||
* fortunately, the system doesn't know that and will treat them as
|
||||
* incompatible collations. It is therefore at least possible to test
|
||||
* parser behaviors such as collation conflict resolution. This test will,
|
||||
* however, be more revealing when run in a database with non-C locale,
|
||||
* since any departure from C sorting behavior will show as a failure.
|
||||
*/
|
||||
|
||||
CREATE SCHEMA collate_tests;
|
||||
SET search_path = collate_tests;
|
||||
|
||||
CREATE TABLE collate_test1 (
|
||||
a int,
|
||||
b text COLLATE "C" NOT NULL
|
||||
);
|
||||
|
||||
\d collate_test1
|
||||
|
||||
CREATE TABLE collate_test_fail (
|
||||
a int COLLATE "C",
|
||||
b text
|
||||
);
|
||||
|
||||
CREATE TABLE collate_test_like (
|
||||
LIKE collate_test1
|
||||
);
|
||||
|
||||
\d collate_test_like
|
||||
|
||||
CREATE TABLE collate_test2 (
|
||||
a int,
|
||||
b text COLLATE "POSIX"
|
||||
);
|
||||
|
||||
INSERT INTO collate_test1 VALUES (1, 'abc'), (2, 'Abc'), (3, 'bbc'), (4, 'ABD');
|
||||
INSERT INTO collate_test2 SELECT * FROM collate_test1;
|
||||
|
||||
SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'abc';
|
||||
SELECT * FROM collate_test1 WHERE b >= 'abc' COLLATE "C";
|
||||
SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'abc' COLLATE "C";
|
||||
SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc' COLLATE "POSIX"; -- fail
|
||||
|
||||
CREATE DOMAIN testdomain_p AS text COLLATE "POSIX";
|
||||
CREATE DOMAIN testdomain_i AS int COLLATE "POSIX"; -- fail
|
||||
CREATE TABLE collate_test4 (
|
||||
a int,
|
||||
b testdomain_p
|
||||
);
|
||||
INSERT INTO collate_test4 SELECT * FROM collate_test1;
|
||||
SELECT a, b FROM collate_test4 ORDER BY b;
|
||||
|
||||
CREATE TABLE collate_test5 (
|
||||
a int,
|
||||
b testdomain_p COLLATE "C"
|
||||
);
|
||||
INSERT INTO collate_test5 SELECT * FROM collate_test1;
|
||||
SELECT a, b FROM collate_test5 ORDER BY b;
|
||||
|
||||
|
||||
SELECT a, b FROM collate_test1 ORDER BY b;
|
||||
SELECT a, b FROM collate_test2 ORDER BY b;
|
||||
|
||||
SELECT a, b FROM collate_test1 ORDER BY b COLLATE "C";
|
||||
|
||||
-- star expansion
|
||||
SELECT * FROM collate_test1 ORDER BY b;
|
||||
SELECT * FROM collate_test2 ORDER BY b;
|
||||
|
||||
-- constant expression folding
|
||||
SELECT 'bbc' COLLATE "C" > 'Abc' COLLATE "C" AS "true";
|
||||
SELECT 'bbc' COLLATE "POSIX" < 'Abc' COLLATE "POSIX" AS "false";
|
||||
|
||||
-- upper/lower
|
||||
|
||||
CREATE TABLE collate_test10 (
|
||||
a int,
|
||||
x text COLLATE "C",
|
||||
y text COLLATE "POSIX"
|
||||
);
|
||||
|
||||
INSERT INTO collate_test10 VALUES (1, 'hij', 'hij'), (2, 'HIJ', 'HIJ');
|
||||
|
||||
SELECT a, lower(x), lower(y), upper(x), upper(y), initcap(x), initcap(y) FROM collate_test10;
|
||||
SELECT a, lower(x COLLATE "C"), lower(y COLLATE "C") FROM collate_test10;
|
||||
|
||||
SELECT a, x, y FROM collate_test10 ORDER BY lower(y), a;
|
||||
|
||||
-- backwards parsing
|
||||
|
||||
CREATE VIEW collview1 AS SELECT * FROM collate_test1 WHERE b COLLATE "C" >= 'bbc';
|
||||
CREATE VIEW collview2 AS SELECT a, b FROM collate_test1 ORDER BY b COLLATE "C";
|
||||
CREATE VIEW collview3 AS SELECT a, lower((x || x) COLLATE "POSIX") FROM collate_test10;
|
||||
|
||||
SELECT table_name, view_definition FROM information_schema.views
|
||||
WHERE table_name LIKE 'collview%' ORDER BY 1;
|
||||
|
||||
|
||||
-- collation propagation in various expression type
|
||||
|
||||
SELECT a, coalesce(b, 'foo') FROM collate_test1 ORDER BY 2;
|
||||
SELECT a, coalesce(b, 'foo') FROM collate_test2 ORDER BY 2;
|
||||
SELECT a, lower(coalesce(x, 'foo')), lower(coalesce(y, 'foo')) FROM collate_test10;
|
||||
|
||||
SELECT a, b, greatest(b, 'CCC') FROM collate_test1 ORDER BY 3;
|
||||
SELECT a, b, greatest(b, 'CCC') FROM collate_test2 ORDER BY 3;
|
||||
SELECT a, x, y, lower(greatest(x, 'foo')), lower(greatest(y, 'foo')) FROM collate_test10;
|
||||
|
||||
SELECT a, nullif(b, 'abc') FROM collate_test1 ORDER BY 2;
|
||||
SELECT a, nullif(b, 'abc') FROM collate_test2 ORDER BY 2;
|
||||
SELECT a, lower(nullif(x, 'foo')), lower(nullif(y, 'foo')) FROM collate_test10;
|
||||
|
||||
SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test1 ORDER BY 2;
|
||||
SELECT a, CASE b WHEN 'abc' THEN 'abcd' ELSE b END FROM collate_test2 ORDER BY 2;
|
||||
|
||||
CREATE DOMAIN testdomain AS text;
|
||||
SELECT a, b::testdomain FROM collate_test1 ORDER BY 2;
|
||||
SELECT a, b::testdomain FROM collate_test2 ORDER BY 2;
|
||||
SELECT a, b::testdomain_p FROM collate_test2 ORDER BY 2;
|
||||
SELECT a, lower(x::testdomain), lower(y::testdomain) FROM collate_test10;
|
||||
|
||||
SELECT min(b), max(b) FROM collate_test1;
|
||||
SELECT min(b), max(b) FROM collate_test2;
|
||||
|
||||
SELECT array_agg(b ORDER BY b) FROM collate_test1;
|
||||
SELECT array_agg(b ORDER BY b) FROM collate_test2;
|
||||
|
||||
SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test1 ORDER BY 2;
|
||||
SELECT a, b FROM collate_test2 UNION SELECT a, b FROM collate_test2 ORDER BY 2;
|
||||
SELECT a, b FROM collate_test2 WHERE a < 4 INTERSECT SELECT a, b FROM collate_test2 WHERE a > 1 ORDER BY 2;
|
||||
SELECT a, b FROM collate_test2 EXCEPT SELECT a, b FROM collate_test2 WHERE a < 2 ORDER BY 2;
|
||||
|
||||
SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test2 ORDER BY 2; -- fail
|
||||
SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test2; -- ok
|
||||
SELECT a, b FROM collate_test1 UNION SELECT a, b FROM collate_test2 ORDER BY 2; -- fail
|
||||
SELECT a, b COLLATE "C" FROM collate_test1 UNION SELECT a, b FROM collate_test2 ORDER BY 2; -- ok
|
||||
SELECT a, b FROM collate_test1 INTERSECT SELECT a, b FROM collate_test2 ORDER BY 2; -- fail
|
||||
SELECT a, b FROM collate_test1 EXCEPT SELECT a, b FROM collate_test2 ORDER BY 2; -- fail
|
||||
|
||||
CREATE TABLE test_u AS SELECT a, b FROM collate_test1 UNION ALL SELECT a, b FROM collate_test2; -- fail
|
||||
|
||||
-- ideally this would be a parse-time error, but for now it must be run-time:
|
||||
select x < y from collate_test10; -- fail
|
||||
select x || y from collate_test10; -- ok, because || is not collation aware
|
||||
|
||||
-- collation mismatch between recursive and non-recursive term
|
||||
WITH RECURSIVE foo(x) AS
|
||||
(SELECT x FROM (VALUES('a' COLLATE "C"),('b')) t(x)
|
||||
UNION ALL
|
||||
SELECT (x || 'c') COLLATE "POSIX" FROM foo WHERE length(x) < 10)
|
||||
SELECT * FROM foo;
|
||||
|
||||
|
||||
-- casting
|
||||
|
||||
SELECT CAST('42' AS text COLLATE "C");
|
||||
|
||||
SELECT a, CAST(b AS varchar) FROM collate_test1 ORDER BY 2;
|
||||
SELECT a, CAST(b AS varchar) FROM collate_test2 ORDER BY 2;
|
||||
|
||||
|
||||
-- polymorphism
|
||||
|
||||
SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test1)) ORDER BY 1;
|
||||
SELECT * FROM unnest((SELECT array_agg(b ORDER BY b) FROM collate_test2)) ORDER BY 1;
|
||||
|
||||
CREATE FUNCTION dup (f1 anyelement, f2 out anyelement, f3 out anyarray)
|
||||
AS 'select $1, array[$1,$1]' LANGUAGE sql;
|
||||
|
||||
SELECT a, (dup(b)).* FROM collate_test1 ORDER BY 2;
|
||||
SELECT a, (dup(b)).* FROM collate_test2 ORDER BY 2;
|
||||
|
||||
|
||||
-- indexes
|
||||
|
||||
CREATE INDEX collate_test1_idx1 ON collate_test1 (b);
|
||||
CREATE INDEX collate_test1_idx2 ON collate_test1 (b COLLATE "C");
|
||||
CREATE INDEX collate_test1_idx3 ON collate_test1 ((b COLLATE "C")); -- this is different grammatically
|
||||
|
||||
CREATE INDEX collate_test1_idx4 ON collate_test1 (a COLLATE "C"); -- fail
|
||||
CREATE INDEX collate_test1_idx5 ON collate_test1 ((a COLLATE "C")); -- fail
|
||||
|
||||
SELECT relname, pg_get_indexdef(oid) FROM pg_class WHERE relname LIKE 'collate_test%_idx%';
|
||||
|
||||
--
|
||||
-- Clean up. Many of these table names will be re-used if the user is
|
||||
-- trying to run any platform-specific collation tests later, so we
|
||||
-- must get rid of them.
|
||||
--
|
||||
DROP SCHEMA collate_tests CASCADE;
|
||||
Loading…
Reference in New Issue