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Diffstat (limited to 'contrib/citext/sql/citext.sql')
| -rw-r--r-- | contrib/citext/sql/citext.sql | 844 |
1 files changed, 844 insertions, 0 deletions
diff --git a/contrib/citext/sql/citext.sql b/contrib/citext/sql/citext.sql new file mode 100644 index 0000000..10232f5 --- /dev/null +++ b/contrib/citext/sql/citext.sql @@ -0,0 +1,844 @@ +-- +-- Test citext datatype +-- + +CREATE EXTENSION citext; + +-- Check whether any of our opclasses fail amvalidate +SELECT amname, opcname +FROM pg_opclass opc LEFT JOIN pg_am am ON am.oid = opcmethod +WHERE opc.oid >= 16384 AND NOT amvalidate(opc.oid); + +-- Test the operators and indexing functions + +-- Test = and <>. +SELECT 'a'::citext = 'a'::citext AS t; +SELECT 'a'::citext = 'A'::citext AS t; +SELECT 'a'::citext = 'A'::text AS f; -- text wins the discussion +SELECT 'a'::citext = 'b'::citext AS f; +SELECT 'a'::citext = 'ab'::citext AS f; +SELECT 'a'::citext <> 'ab'::citext AS t; + +-- Multibyte sanity tests. Uncomment to run. +-- SELECT 'À'::citext = 'À'::citext AS t; +-- SELECT 'À'::citext = 'à'::citext AS t; +-- SELECT 'À'::text = 'à'::text AS f; -- text wins. +-- SELECT 'À'::citext <> 'B'::citext AS t; + +-- Test combining characters making up canonically equivalent strings. +-- SELECT 'Ä'::text <> 'Ä'::text AS t; +-- SELECT 'Ä'::citext <> 'Ä'::citext AS t; + +-- Test the Turkish dotted I. The lowercase is a single byte while the +-- uppercase is multibyte. This is why the comparison code can't be optimized +-- to compare string lengths. +-- SELECT 'i'::citext = 'İ'::citext AS t; + +-- Regression. +-- SELECT 'láska'::citext <> 'laská'::citext AS t; + +-- SELECT 'Ask Bjørn Hansen'::citext = 'Ask Bjørn Hansen'::citext AS t; +-- SELECT 'Ask Bjørn Hansen'::citext = 'ASK BJØRN HANSEN'::citext AS t; +-- SELECT 'Ask Bjørn Hansen'::citext <> 'Ask Bjorn Hansen'::citext AS t; +-- SELECT 'Ask Bjørn Hansen'::citext <> 'ASK BJORN HANSEN'::citext AS t; +-- SELECT citext_cmp('Ask Bjørn Hansen'::citext, 'Ask Bjørn Hansen'::citext) AS zero; +-- SELECT citext_cmp('Ask Bjørn Hansen'::citext, 'ask bjørn hansen'::citext) AS zero; +-- SELECT citext_cmp('Ask Bjørn Hansen'::citext, 'ASK BJØRN HANSEN'::citext) AS zero; +-- SELECT citext_cmp('Ask Bjørn Hansen'::citext, 'Ask Bjorn Hansen'::citext) AS positive; +-- SELECT citext_cmp('Ask Bjorn Hansen'::citext, 'Ask Bjørn Hansen'::citext) AS negative; + +-- Test > and >= +SELECT 'B'::citext > 'a'::citext AS t; +SELECT 'b'::citext > 'A'::citext AS t; +SELECT 'B'::citext > 'b'::citext AS f; +SELECT 'B'::citext >= 'b'::citext AS t; + +-- Test < and <= +SELECT 'a'::citext < 'B'::citext AS t; +SELECT 'a'::citext <= 'B'::citext AS t; + +-- Test implicit casting. citext casts to text, but not vice-versa. +SELECT 'a'::citext = 'a'::text AS t; +SELECT 'A'::text <> 'a'::citext AS t; + +SELECT 'B'::citext < 'a'::text AS t; -- text wins. +SELECT 'B'::citext <= 'a'::text AS t; -- text wins. + +SELECT 'a'::citext > 'B'::text AS t; -- text wins. +SELECT 'a'::citext >= 'B'::text AS t; -- text wins. + +-- Test implicit casting. citext casts to varchar, but not vice-versa. +SELECT 'a'::citext = 'a'::varchar AS t; +SELECT 'A'::varchar <> 'a'::citext AS t; + +SELECT 'B'::citext < 'a'::varchar AS t; -- varchar wins. +SELECT 'B'::citext <= 'a'::varchar AS t; -- varchar wins. + +SELECT 'a'::citext > 'B'::varchar AS t; -- varchar wins. +SELECT 'a'::citext >= 'B'::varchar AS t; -- varchar wins. + +-- A couple of longer examples to ensure that we don't get any issues with bad +-- conversions to char[] in the c code. Yes, I did do this. + +SELECT 'aardvark'::citext = 'aardvark'::citext AS t; +SELECT 'aardvark'::citext = 'aardVark'::citext AS t; + +-- Check the citext_cmp() function explicitly. +SELECT citext_cmp('aardvark'::citext, 'aardvark'::citext) AS zero; +SELECT citext_cmp('aardvark'::citext, 'aardVark'::citext) AS zero; +SELECT citext_cmp('AARDVARK'::citext, 'AARDVARK'::citext) AS zero; +SELECT citext_cmp('B'::citext, 'a'::citext) > 0 AS true; + +-- Check the citext_hash() and citext_hash_extended() function explicitly. +SELECT v as value, citext_hash(v)::bit(32) as standard, + citext_hash_extended(v, 0)::bit(32) as extended0, + citext_hash_extended(v, 1)::bit(32) as extended1 +FROM (VALUES (NULL::citext), ('PostgreSQL'), ('eIpUEtqmY89'), ('AXKEJBTK'), + ('muop28x03'), ('yi3nm0d73')) x(v) +WHERE citext_hash(v)::bit(32) != citext_hash_extended(v, 0)::bit(32) + OR citext_hash(v)::bit(32) = citext_hash_extended(v, 1)::bit(32); + +-- Do some tests using a table and index. + +CREATE TEMP TABLE try ( + name citext PRIMARY KEY +); + +INSERT INTO try (name) +VALUES ('a'), ('ab'), ('â'), ('aba'), ('b'), ('ba'), ('bab'), ('AZ'); + +SELECT name, 'a' = name AS eq_a FROM try WHERE name <> 'â'; +SELECT name, 'a' = name AS t FROM try where name = 'a'; +SELECT name, 'A' = name AS "eq_A" FROM try WHERE name <> 'â'; +SELECT name, 'A' = name AS t FROM try where name = 'A'; +SELECT name, 'A' = name AS t FROM try where name = 'A'; + +-- expected failures on duplicate key +INSERT INTO try (name) VALUES ('a'); +INSERT INTO try (name) VALUES ('A'); +INSERT INTO try (name) VALUES ('aB'); + +-- Make sure that citext_smaller() and citext_larger() work properly. +SELECT citext_smaller( 'ab'::citext, 'ac'::citext ) = 'ab' AS t; +SELECT citext_smaller( 'ABC'::citext, 'bbbb'::citext ) = 'ABC' AS t; +SELECT citext_smaller( 'aardvark'::citext, 'Aaba'::citext ) = 'Aaba' AS t; +SELECT citext_smaller( 'aardvark'::citext, 'AARDVARK'::citext ) = 'AARDVARK' AS t; + +SELECT citext_larger( 'ab'::citext, 'ac'::citext ) = 'ac' AS t; +SELECT citext_larger( 'ABC'::citext, 'bbbb'::citext ) = 'bbbb' AS t; +SELECT citext_larger( 'aardvark'::citext, 'Aaba'::citext ) = 'aardvark' AS t; + +-- Test aggregate functions and sort ordering + +CREATE TEMP TABLE srt ( + name CITEXT +); + +INSERT INTO srt (name) +VALUES ('abb'), + ('ABA'), + ('ABC'), + ('abd'); + +CREATE INDEX srt_name ON srt (name); + +-- Check the min() and max() aggregates, with and without index. +set enable_seqscan = off; +SELECT MIN(name) AS "ABA" FROM srt; +SELECT MAX(name) AS abd FROM srt; +reset enable_seqscan; +set enable_indexscan = off; +SELECT MIN(name) AS "ABA" FROM srt; +SELECT MAX(name) AS abd FROM srt; +reset enable_indexscan; + +-- Check sorting likewise +set enable_seqscan = off; +SELECT name FROM srt ORDER BY name; +reset enable_seqscan; +set enable_indexscan = off; +SELECT name FROM srt ORDER BY name; +reset enable_indexscan; + +-- Test assignment casts. +SELECT LOWER(name) as aba FROM srt WHERE name = 'ABA'::text; +SELECT LOWER(name) as aba FROM srt WHERE name = 'ABA'::varchar; +SELECT LOWER(name) as aba FROM srt WHERE name = 'ABA'::bpchar; +SELECT LOWER(name) as aba FROM srt WHERE name = 'ABA'; +SELECT LOWER(name) as aba FROM srt WHERE name = 'ABA'::citext; + +-- LIKE should be case-insensitive +SELECT name FROM srt WHERE name LIKE '%a%' ORDER BY name; +SELECT name FROM srt WHERE name NOT LIKE '%b%' ORDER BY name; +SELECT name FROM srt WHERE name LIKE '%A%' ORDER BY name; +SELECT name FROM srt WHERE name NOT LIKE '%B%' ORDER BY name; + +-- ~~ should be case-insensitive +SELECT name FROM srt WHERE name ~~ '%a%' ORDER BY name; +SELECT name FROM srt WHERE name !~~ '%b%' ORDER BY name; +SELECT name FROM srt WHERE name ~~ '%A%' ORDER BY name; +SELECT name FROM srt WHERE name !~~ '%B%' ORDER BY name; + +-- ~ should be case-insensitive +SELECT name FROM srt WHERE name ~ '^a' ORDER BY name; +SELECT name FROM srt WHERE name !~ 'a$' ORDER BY name; +SELECT name FROM srt WHERE name ~ '^A' ORDER BY name; +SELECT name FROM srt WHERE name !~ 'A$' ORDER BY name; + +-- SIMILAR TO should be case-insensitive. +SELECT name FROM srt WHERE name SIMILAR TO '%a.*'; +SELECT name FROM srt WHERE name SIMILAR TO '%A.*'; + +-- Explicit casts. +SELECT true::citext = 'true' AS t; +SELECT 'true'::citext::boolean = true AS t; + +SELECT 4::citext = '4' AS t; +SELECT 4::int4::citext = '4' AS t; +SELECT '4'::citext::int4 = 4 AS t; +SELECT 4::integer::citext = '4' AS t; +SELECT '4'::citext::integer = 4 AS t; + +SELECT 4::int8::citext = '4' AS t; +SELECT '4'::citext::int8 = 4 AS t; +SELECT 4::bigint::citext = '4' AS t; +SELECT '4'::citext::bigint = 4 AS t; + +SELECT 4::int2::citext = '4' AS t; +SELECT '4'::citext::int2 = 4 AS t; +SELECT 4::smallint::citext = '4' AS t; +SELECT '4'::citext::smallint = 4 AS t; + +SELECT 4.0::numeric = '4.0' AS t; +SELECT '4.0'::citext::numeric = 4.0 AS t; +SELECT 4.0::decimal = '4.0' AS t; +SELECT '4.0'::citext::decimal = 4.0 AS t; + +SELECT 4.0::real = '4.0' AS t; +SELECT '4.0'::citext::real = 4.0 AS t; +SELECT 4.0::float4 = '4.0' AS t; +SELECT '4.0'::citext::float4 = 4.0 AS t; + +SELECT 4.0::double precision = '4.0' AS t; +SELECT '4.0'::citext::double precision = 4.0 AS t; +SELECT 4.0::float8 = '4.0' AS t; +SELECT '4.0'::citext::float8 = 4.0 AS t; + +SELECT 'foo'::name::citext = 'foo' AS t; +SELECT 'foo'::citext::name = 'foo'::name AS t; + +SELECT 'f'::char::citext = 'f' AS t; +SELECT 'f'::citext::char = 'f'::char AS t; + +SELECT 'f'::"char"::citext = 'f' AS t; +SELECT 'f'::citext::"char" = 'f'::"char" AS t; + +SELECT '100'::money::citext = '$100.00' AS t; +SELECT '100'::citext::money = '100'::money AS t; + +SELECT 'a'::char::citext = 'a' AS t; +SELECT 'a'::citext::char = 'a'::char AS t; + +SELECT 'foo'::varchar::citext = 'foo' AS t; +SELECT 'foo'::citext::varchar = 'foo'::varchar AS t; + +SELECT 'foo'::text::citext = 'foo' AS t; +SELECT 'foo'::citext::text = 'foo'::text AS t; + +SELECT '192.168.100.128/25'::cidr::citext = '192.168.100.128/25' AS t; +SELECT '192.168.100.128/25'::citext::cidr = '192.168.100.128/25'::cidr AS t; + +SELECT '192.168.100.128'::inet::citext = '192.168.100.128/32' AS t; +SELECT '192.168.100.128'::citext::inet = '192.168.100.128'::inet AS t; + +SELECT '08:00:2b:01:02:03'::macaddr::citext = '08:00:2b:01:02:03' AS t; +SELECT '08:00:2b:01:02:03'::citext::macaddr = '08:00:2b:01:02:03'::macaddr AS t; + +SELECT '1999-01-08 04:05:06'::timestamp::citext = '1999-01-08 04:05:06'::timestamp::text AS t; +SELECT '1999-01-08 04:05:06'::citext::timestamp = '1999-01-08 04:05:06'::timestamp AS t; +SELECT '1999-01-08 04:05:06'::timestamptz::citext = '1999-01-08 04:05:06'::timestamptz::text AS t; +SELECT '1999-01-08 04:05:06'::citext::timestamptz = '1999-01-08 04:05:06'::timestamptz AS t; + +SELECT '1 hour'::interval::citext = '1 hour'::interval::text AS t; +SELECT '1 hour'::citext::interval = '1 hour'::interval AS t; + +SELECT '1999-01-08'::date::citext = '1999-01-08'::date::text AS t; +SELECT '1999-01-08'::citext::date = '1999-01-08'::date AS t; + +SELECT '04:05:06'::time::citext = '04:05:06' AS t; +SELECT '04:05:06'::citext::time = '04:05:06'::time AS t; +SELECT '04:05:06'::timetz::citext = '04:05:06'::timetz::text AS t; +SELECT '04:05:06'::citext::timetz = '04:05:06'::timetz AS t; + +SELECT '( 1 , 1)'::point::citext = '(1,1)' AS t; +SELECT '( 1 , 1)'::citext::point ~= '(1,1)'::point AS t; +SELECT '( 1 , 1 ) , ( 2 , 2 )'::lseg::citext = '[(1,1),(2,2)]' AS t; +SELECT '( 1 , 1 ) , ( 2 , 2 )'::citext::lseg = '[(1,1),(2,2)]'::lseg AS t; +SELECT '( 0 , 0 ) , ( 1 , 1 )'::box::citext = '(0,0),(1,1)'::box::text AS t; +SELECT '( 0 , 0 ) , ( 1 , 1 )'::citext::box ~= '(0,0),(1,1)'::text::box AS t; + +SELECT '((0,0),(1,1),(2,0))'::path::citext = '((0,0),(1,1),(2,0))' AS t; +SELECT '((0,0),(1,1),(2,0))'::citext::path = '((0,0),(1,1),(2,0))'::path AS t; + +SELECT '((0,0),(1,1))'::polygon::citext = '((0,0),(1,1))' AS t; +SELECT '((0,0),(1,1))'::citext::polygon ~= '((0,0),(1,1))'::polygon AS t; + +SELECT '((0,0),2)'::circle::citext = '((0,0),2)'::circle::text AS t; +SELECT '((0,0),2)'::citext::circle ~= '((0,0),2)'::text::circle AS t; + +SELECT '101'::bit::citext = '101'::bit::text AS t; +SELECT '101'::citext::bit = '101'::text::bit AS t; +SELECT '101'::bit varying::citext = '101'::bit varying::text AS t; +SELECT '101'::citext::bit varying = '101'::text::bit varying AS t; +SELECT 'a fat cat'::tsvector::citext = '''a'' ''cat'' ''fat''' AS t; +SELECT 'a fat cat'::citext::tsvector = 'a fat cat'::tsvector AS t; +SELECT 'fat & rat'::tsquery::citext = '''fat'' & ''rat''' AS t; +SELECT 'fat & rat'::citext::tsquery = 'fat & rat'::tsquery AS t; +SELECT 'a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11'::uuid::citext = 'a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11' AS t; +SELECT 'a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11'::citext::uuid = 'a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11'::uuid AS t; + +CREATE TYPE mood AS ENUM ('sad', 'ok', 'happy'); +SELECT 'sad'::mood::citext = 'sad' AS t; +SELECT 'sad'::citext::mood = 'sad'::mood AS t; + +-- Assignment casts. +CREATE TABLE caster ( + citext citext, + text text, + varchar varchar, + bpchar bpchar, + char char, + chr "char", + name name, + bytea bytea, + boolean boolean, + float4 float4, + float8 float8, + numeric numeric, + int8 int8, + int4 int4, + int2 int2, + cidr cidr, + inet inet, + macaddr macaddr, + money money, + timestamp timestamp, + timestamptz timestamptz, + interval interval, + date date, + time time, + timetz timetz, + point point, + lseg lseg, + box box, + path path, + polygon polygon, + circle circle, + bit bit, + bitv bit varying, + tsvector tsvector, + tsquery tsquery, + uuid uuid +); + +INSERT INTO caster (text) VALUES ('foo'::citext); +INSERT INTO caster (citext) VALUES ('foo'::text); + +INSERT INTO caster (varchar) VALUES ('foo'::text); +INSERT INTO caster (text) VALUES ('foo'::varchar); +INSERT INTO caster (varchar) VALUES ('foo'::citext); +INSERT INTO caster (citext) VALUES ('foo'::varchar); + +INSERT INTO caster (bpchar) VALUES ('foo'::text); +INSERT INTO caster (text) VALUES ('foo'::bpchar); +INSERT INTO caster (bpchar) VALUES ('foo'::citext); +INSERT INTO caster (citext) VALUES ('foo'::bpchar); + +INSERT INTO caster (char) VALUES ('f'::text); +INSERT INTO caster (text) VALUES ('f'::char); +INSERT INTO caster (char) VALUES ('f'::citext); +INSERT INTO caster (citext) VALUES ('f'::char); + +INSERT INTO caster (chr) VALUES ('f'::text); +INSERT INTO caster (text) VALUES ('f'::"char"); +INSERT INTO caster (chr) VALUES ('f'::citext); +INSERT INTO caster (citext) VALUES ('f'::"char"); + +INSERT INTO caster (name) VALUES ('foo'::text); +INSERT INTO caster (text) VALUES ('foo'::name); +INSERT INTO caster (name) VALUES ('foo'::citext); +INSERT INTO caster (citext) VALUES ('foo'::name); + +-- Cannot cast to bytea on assignment. +INSERT INTO caster (bytea) VALUES ('foo'::text); +INSERT INTO caster (text) VALUES ('foo'::bytea); +INSERT INTO caster (bytea) VALUES ('foo'::citext); +INSERT INTO caster (citext) VALUES ('foo'::bytea); + +-- Cannot cast to boolean on assignment. +INSERT INTO caster (boolean) VALUES ('t'::text); +INSERT INTO caster (text) VALUES ('t'::boolean); +INSERT INTO caster (boolean) VALUES ('t'::citext); +INSERT INTO caster (citext) VALUES ('t'::boolean); + +-- Cannot cast to float8 on assignment. +INSERT INTO caster (float8) VALUES ('12.42'::text); +INSERT INTO caster (text) VALUES ('12.42'::float8); +INSERT INTO caster (float8) VALUES ('12.42'::citext); +INSERT INTO caster (citext) VALUES ('12.42'::float8); + +-- Cannot cast to float4 on assignment. +INSERT INTO caster (float4) VALUES ('12.42'::text); +INSERT INTO caster (text) VALUES ('12.42'::float4); +INSERT INTO caster (float4) VALUES ('12.42'::citext); +INSERT INTO caster (citext) VALUES ('12.42'::float4); + +-- Cannot cast to numeric on assignment. +INSERT INTO caster (numeric) VALUES ('12.42'::text); +INSERT INTO caster (text) VALUES ('12.42'::numeric); +INSERT INTO caster (numeric) VALUES ('12.42'::citext); +INSERT INTO caster (citext) VALUES ('12.42'::numeric); + +-- Cannot cast to int8 on assignment. +INSERT INTO caster (int8) VALUES ('12'::text); +INSERT INTO caster (text) VALUES ('12'::int8); +INSERT INTO caster (int8) VALUES ('12'::citext); +INSERT INTO caster (citext) VALUES ('12'::int8); + +-- Cannot cast to int4 on assignment. +INSERT INTO caster (int4) VALUES ('12'::text); +INSERT INTO caster (text) VALUES ('12'::int4); +INSERT INTO caster (int4) VALUES ('12'::citext); +INSERT INTO caster (citext) VALUES ('12'::int4); + +-- Cannot cast to int2 on assignment. +INSERT INTO caster (int2) VALUES ('12'::text); +INSERT INTO caster (text) VALUES ('12'::int2); +INSERT INTO caster (int2) VALUES ('12'::citext); +INSERT INTO caster (citext) VALUES ('12'::int2); + +-- Cannot cast to cidr on assignment. +INSERT INTO caster (cidr) VALUES ('192.168.100.128/25'::text); +INSERT INTO caster (text) VALUES ('192.168.100.128/25'::cidr); +INSERT INTO caster (cidr) VALUES ('192.168.100.128/25'::citext); +INSERT INTO caster (citext) VALUES ('192.168.100.128/25'::cidr); + +-- Cannot cast to inet on assignment. +INSERT INTO caster (inet) VALUES ('192.168.100.128'::text); +INSERT INTO caster (text) VALUES ('192.168.100.128'::inet); +INSERT INTO caster (inet) VALUES ('192.168.100.128'::citext); +INSERT INTO caster (citext) VALUES ('192.168.100.128'::inet); + +-- Cannot cast to macaddr on assignment. +INSERT INTO caster (macaddr) VALUES ('08:00:2b:01:02:03'::text); +INSERT INTO caster (text) VALUES ('08:00:2b:01:02:03'::macaddr); +INSERT INTO caster (macaddr) VALUES ('08:00:2b:01:02:03'::citext); +INSERT INTO caster (citext) VALUES ('08:00:2b:01:02:03'::macaddr); + +-- Cannot cast to money on assignment. +INSERT INTO caster (money) VALUES ('12'::text); +INSERT INTO caster (text) VALUES ('12'::money); +INSERT INTO caster (money) VALUES ('12'::citext); +INSERT INTO caster (citext) VALUES ('12'::money); + +-- Cannot cast to timestamp on assignment. +INSERT INTO caster (timestamp) VALUES ('1999-01-08 04:05:06'::text); +INSERT INTO caster (text) VALUES ('1999-01-08 04:05:06'::timestamp); +INSERT INTO caster (timestamp) VALUES ('1999-01-08 04:05:06'::citext); +INSERT INTO caster (citext) VALUES ('1999-01-08 04:05:06'::timestamp); + +-- Cannot cast to timestamptz on assignment. +INSERT INTO caster (timestamptz) VALUES ('1999-01-08 04:05:06'::text); +INSERT INTO caster (text) VALUES ('1999-01-08 04:05:06'::timestamptz); +INSERT INTO caster (timestamptz) VALUES ('1999-01-08 04:05:06'::citext); +INSERT INTO caster (citext) VALUES ('1999-01-08 04:05:06'::timestamptz); + +-- Cannot cast to interval on assignment. +INSERT INTO caster (interval) VALUES ('1 hour'::text); +INSERT INTO caster (text) VALUES ('1 hour'::interval); +INSERT INTO caster (interval) VALUES ('1 hour'::citext); +INSERT INTO caster (citext) VALUES ('1 hour'::interval); + +-- Cannot cast to date on assignment. +INSERT INTO caster (date) VALUES ('1999-01-08'::text); +INSERT INTO caster (text) VALUES ('1999-01-08'::date); +INSERT INTO caster (date) VALUES ('1999-01-08'::citext); +INSERT INTO caster (citext) VALUES ('1999-01-08'::date); + +-- Cannot cast to time on assignment. +INSERT INTO caster (time) VALUES ('04:05:06'::text); +INSERT INTO caster (text) VALUES ('04:05:06'::time); +INSERT INTO caster (time) VALUES ('04:05:06'::citext); +INSERT INTO caster (citext) VALUES ('04:05:06'::time); + +-- Cannot cast to timetz on assignment. +INSERT INTO caster (timetz) VALUES ('04:05:06'::text); +INSERT INTO caster (text) VALUES ('04:05:06'::timetz); +INSERT INTO caster (timetz) VALUES ('04:05:06'::citext); +INSERT INTO caster (citext) VALUES ('04:05:06'::timetz); + +-- Cannot cast to point on assignment. +INSERT INTO caster (point) VALUES ('( 1 , 1)'::text); +INSERT INTO caster (text) VALUES ('( 1 , 1)'::point); +INSERT INTO caster (point) VALUES ('( 1 , 1)'::citext); +INSERT INTO caster (citext) VALUES ('( 1 , 1)'::point); + +-- Cannot cast to lseg on assignment. +INSERT INTO caster (lseg) VALUES ('( 1 , 1 ) , ( 2 , 2 )'::text); +INSERT INTO caster (text) VALUES ('( 1 , 1 ) , ( 2 , 2 )'::lseg); +INSERT INTO caster (lseg) VALUES ('( 1 , 1 ) , ( 2 , 2 )'::citext); +INSERT INTO caster (citext) VALUES ('( 1 , 1 ) , ( 2 , 2 )'::lseg); + +-- Cannot cast to box on assignment. +INSERT INTO caster (box) VALUES ('(0,0),(1,1)'::text); +INSERT INTO caster (text) VALUES ('(0,0),(1,1)'::box); +INSERT INTO caster (box) VALUES ('(0,0),(1,1)'::citext); +INSERT INTO caster (citext) VALUES ('(0,0),(1,1)'::box); + +-- Cannot cast to path on assignment. +INSERT INTO caster (path) VALUES ('((0,0),(1,1),(2,0))'::text); +INSERT INTO caster (text) VALUES ('((0,0),(1,1),(2,0))'::path); +INSERT INTO caster (path) VALUES ('((0,0),(1,1),(2,0))'::citext); +INSERT INTO caster (citext) VALUES ('((0,0),(1,1),(2,0))'::path); + +-- Cannot cast to polygon on assignment. +INSERT INTO caster (polygon) VALUES ('((0,0),(1,1))'::text); +INSERT INTO caster (text) VALUES ('((0,0),(1,1))'::polygon); +INSERT INTO caster (polygon) VALUES ('((0,0),(1,1))'::citext); +INSERT INTO caster (citext) VALUES ('((0,0),(1,1))'::polygon); + +-- Cannot cast to circle on assignment. +INSERT INTO caster (circle) VALUES ('((0,0),2)'::text); +INSERT INTO caster (text) VALUES ('((0,0),2)'::circle); +INSERT INTO caster (circle) VALUES ('((0,0),2)'::citext); +INSERT INTO caster (citext) VALUES ('((0,0),2)'::circle); + +-- Cannot cast to bit on assignment. +INSERT INTO caster (bit) VALUES ('101'::text); +INSERT INTO caster (text) VALUES ('101'::bit); +INSERT INTO caster (bit) VALUES ('101'::citext); +INSERT INTO caster (citext) VALUES ('101'::bit); + +-- Cannot cast to bit varying on assignment. +INSERT INTO caster (bitv) VALUES ('101'::text); +INSERT INTO caster (text) VALUES ('101'::bit varying); +INSERT INTO caster (bitv) VALUES ('101'::citext); +INSERT INTO caster (citext) VALUES ('101'::bit varying); + +-- Cannot cast to tsvector on assignment. +INSERT INTO caster (tsvector) VALUES ('the fat cat'::text); +INSERT INTO caster (text) VALUES ('the fat cat'::tsvector); +INSERT INTO caster (tsvector) VALUES ('the fat cat'::citext); +INSERT INTO caster (citext) VALUES ('the fat cat'::tsvector); + +-- Cannot cast to tsquery on assignment. +INSERT INTO caster (tsquery) VALUES ('fat & rat'::text); +INSERT INTO caster (text) VALUES ('fat & rat'::tsquery); +INSERT INTO caster (tsquery) VALUES ('fat & rat'::citext); +INSERT INTO caster (citext) VALUES ('fat & rat'::tsquery); + +-- Cannot cast to uuid on assignment. +INSERT INTO caster (uuid) VALUES ('a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11'::text); +INSERT INTO caster (text) VALUES ('a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11'::uuid); +INSERT INTO caster (uuid) VALUES ('a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11'::citext); +INSERT INTO caster (citext) VALUES ('a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11'::uuid); + +-- Table 9-5. SQL String Functions and Operators +SELECT 'D'::citext || 'avid'::citext = 'David'::citext AS citext_concat; +SELECT 'Value: '::citext || 42 = 'Value: 42' AS text_concat; +SELECT 42 || ': value'::citext ='42: value' AS int_concat; +SELECT bit_length('jose'::citext) = 32 AS t; +SELECT bit_length( name ) = bit_length( name::text ) AS t FROM srt; +SELECT textlen( name ) = textlen( name::text ) AS t FROM srt; +SELECT char_length( name ) = char_length( name::text ) AS t FROM srt; +SELECT lower( name ) = lower( name::text ) AS t FROM srt; +SELECT octet_length( name ) = octet_length( name::text ) AS t FROM srt; +SELECT overlay( name placing 'hom' from 2 for 4) = overlay( name::text placing 'hom' from 2 for 4) AS t FROM srt; +SELECT position( 'a' IN name ) = position( 'a' IN name::text ) AS t FROM srt; + +SELECT substr('alphabet'::citext, 3) = 'phabet' AS t; +SELECT substr('alphabet'::citext, 3, 2) = 'ph' AS t; + +SELECT substring('alphabet'::citext, 3) = 'phabet' AS t; +SELECT substring('alphabet'::citext, 3, 2) = 'ph' AS t; +SELECT substring('Thomas'::citext from 2 for 3) = 'hom' AS t; +SELECT substring('Thomas'::citext from 2) = 'homas' AS t; +SELECT substring('Thomas'::citext from '...$') = 'mas' AS t; +SELECT substring('Thomas'::citext similar '%#"o_a#"_' escape '#') = 'oma' AS t; + +SELECT trim(' trim '::citext) = 'trim' AS t; +SELECT trim('xxxxxtrimxxxx'::citext, 'x'::citext) = 'trim' AS t; +SELECT trim('xxxxxxtrimxxxx'::text, 'x'::citext) = 'trim' AS t; +SELECT trim('xxxxxtrimxxxx'::text, 'x'::citext) = 'trim' AS t; + +SELECT upper( name ) = upper( name::text ) AS t FROM srt; + +-- Table 9-6. Other String Functions. +SELECT ascii( name ) = ascii( name::text ) AS t FROM srt; + +SELECT btrim(' trim'::citext ) = 'trim' AS t; +SELECT btrim('xxxxxtrimxxxx'::citext, 'x'::citext ) = 'trim' AS t; +SELECT btrim('xyxtrimyyx'::citext, 'xy'::citext) = 'trim' AS t; +SELECT btrim('xyxtrimyyx'::text, 'xy'::citext) = 'trim' AS t; +SELECT btrim('xyxtrimyyx'::citext, 'xy'::text ) = 'trim' AS t; + +-- chr() takes an int and returns text. +-- convert() and convert_from take bytea and return text. + +SELECT convert_from( name::bytea, 'SQL_ASCII' ) = convert_from( name::text::bytea, 'SQL_ASCII' ) AS t FROM srt; +SELECT decode('MTIzAAE='::citext, 'base64') = decode('MTIzAAE='::text, 'base64') AS t; +-- encode() takes bytea and returns text. +SELECT initcap('hi THOMAS'::citext) = initcap('hi THOMAS'::text) AS t; +SELECT length( name ) = length( name::text ) AS t FROM srt; + +SELECT lpad('hi'::citext, 5 ) = ' hi' AS t; +SELECT lpad('hi'::citext, 5, 'xy'::citext) = 'xyxhi' AS t; +SELECT lpad('hi'::text, 5, 'xy'::citext) = 'xyxhi' AS t; +SELECT lpad('hi'::citext, 5, 'xy'::text ) = 'xyxhi' AS t; + +SELECT ltrim(' trim'::citext ) = 'trim' AS t; +SELECT ltrim('zzzytrim'::citext, 'xyz'::citext) = 'trim' AS t; +SELECT ltrim('zzzytrim'::text, 'xyz'::citext) = 'trim' AS t; +SELECT ltrim('zzzytrim'::citext, 'xyz'::text ) = 'trim' AS t; + +SELECT md5( name ) = md5( name::text ) AS t FROM srt; +-- pg_client_encoding() takes no args and returns name. +SELECT quote_ident( name ) = quote_ident( name::text ) AS t FROM srt; +SELECT quote_literal( name ) = quote_literal( name::text ) AS t FROM srt; + +SELECT regexp_match('foobarbequebaz'::citext, '(bar)(beque)') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_match('foobarbequebaz'::citext, '(BAR)(BEQUE)') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_match('foobarbequebaz'::citext, '(BAR)(BEQUE)'::citext) = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_match('foobarbequebaz'::citext, '(BAR)(BEQUE)'::citext, '') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_match('foobarbequebaz'::citext, '(BAR)(BEQUE)', '') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_match('foobarbequebaz', '(BAR)(BEQUE)'::citext, '') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_match('foobarbequebaz'::citext, '(BAR)(BEQUE)'::citext, ''::citext) = ARRAY[ 'bar', 'beque' ] AS t; +-- c forces case-sensitive +SELECT regexp_match('foobarbequebaz'::citext, '(BAR)(BEQUE)'::citext, 'c'::citext) = ARRAY[ 'bar', 'beque' ] AS "no result"; +-- g is not allowed +SELECT regexp_match('foobarbequebazmorebarbequetoo'::citext, '(BAR)(BEQUE)'::citext, 'g') AS "error"; + +SELECT regexp_matches('foobarbequebaz'::citext, '(bar)(beque)') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_matches('foobarbequebaz'::citext, '(BAR)(BEQUE)') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_matches('foobarbequebaz'::citext, '(BAR)(BEQUE)'::citext) = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_matches('foobarbequebaz'::citext, '(BAR)(BEQUE)'::citext, '') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_matches('foobarbequebaz'::citext, '(BAR)(BEQUE)', '') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_matches('foobarbequebaz', '(BAR)(BEQUE)'::citext, '') = ARRAY[ 'bar', 'beque' ] AS t; +SELECT regexp_matches('foobarbequebaz'::citext, '(BAR)(BEQUE)'::citext, ''::citext) = ARRAY[ 'bar', 'beque' ] AS t; +-- c forces case-sensitive +SELECT regexp_matches('foobarbequebaz'::citext, '(BAR)(BEQUE)'::citext, 'c'::citext) = ARRAY[ 'bar', 'beque' ] AS "no rows"; +-- g allows multiple output rows +SELECT regexp_matches('foobarbequebazmorebarbequetoo'::citext, '(BAR)(BEQUE)'::citext, 'g'::citext) AS "two rows"; + +SELECT regexp_replace('Thomas'::citext, '.[mN]a.', 'M') = 'ThM' AS t; +SELECT regexp_replace('Thomas'::citext, '.[MN]A.', 'M') = 'ThM' AS t; +SELECT regexp_replace('Thomas', '.[MN]A.'::citext, 'M') = 'ThM' AS t; +SELECT regexp_replace('Thomas'::citext, '.[MN]A.'::citext, 'M') = 'ThM' AS t; +-- c forces case-sensitive +SELECT regexp_replace('Thomas'::citext, '.[MN]A.'::citext, 'M', 'c') = 'Thomas' AS t; + +SELECT regexp_split_to_array('hello world'::citext, E'\\s+') = ARRAY[ 'hello', 'world' ] AS t; +SELECT regexp_split_to_array('helloTworld'::citext, 't') = ARRAY[ 'hello', 'world' ] AS t; +SELECT regexp_split_to_array('helloTworld', 't'::citext) = ARRAY[ 'hello', 'world' ] AS t; +SELECT regexp_split_to_array('helloTworld'::citext, 't'::citext) = ARRAY[ 'hello', 'world' ] AS t; +SELECT regexp_split_to_array('helloTworld'::citext, 't', 's') = ARRAY[ 'hello', 'world' ] AS t; +SELECT regexp_split_to_array('helloTworld', 't'::citext, 's') = ARRAY[ 'hello', 'world' ] AS t; +SELECT regexp_split_to_array('helloTworld'::citext, 't'::citext, 's') = ARRAY[ 'hello', 'world' ] AS t; + +-- c forces case-sensitive +SELECT regexp_split_to_array('helloTworld'::citext, 't'::citext, 'c') = ARRAY[ 'helloTworld' ] AS t; + +SELECT regexp_split_to_table('hello world'::citext, E'\\s+') AS words; +SELECT regexp_split_to_table('helloTworld'::citext, 't') AS words; +SELECT regexp_split_to_table('helloTworld', 't'::citext) AS words; +SELECT regexp_split_to_table('helloTworld'::citext, 't'::citext) AS words; +-- c forces case-sensitive +SELECT regexp_split_to_table('helloTworld'::citext, 't'::citext, 'c') AS word; + +SELECT repeat('Pg'::citext, 4) = 'PgPgPgPg' AS t; + +SELECT replace('abcdefabcdef'::citext, 'cd', 'XX') = 'abXXefabXXef' AS t; +SELECT replace('abcdefabcdef'::citext, 'CD', 'XX') = 'abXXefabXXef' AS t; +SELECT replace('ab^is$abcdef'::citext, '^is$', 'XX') = 'abXXabcdef' AS t; +SELECT replace('abcdefabcdef', 'cd'::citext, 'XX') = 'abXXefabXXef' AS t; +SELECT replace('abcdefabcdef', 'CD'::citext, 'XX') = 'abXXefabXXef' AS t; +SELECT replace('ab^is$abcdef', '^is$'::citext, 'XX') = 'abXXabcdef' AS t; +SELECT replace('abcdefabcdef'::citext, 'cd'::citext, 'XX') = 'abXXefabXXef' AS t; +SELECT replace('abcdefabcdef'::citext, 'CD'::citext, 'XX') = 'abXXefabXXef' AS t; +SELECT replace('ab^is$abcdef'::citext, '^is$'::citext, 'XX') = 'abXXabcdef' AS t; + +SELECT rpad('hi'::citext, 5 ) = 'hi ' AS t; +SELECT rpad('hi'::citext, 5, 'xy'::citext) = 'hixyx' AS t; +SELECT rpad('hi'::text, 5, 'xy'::citext) = 'hixyx' AS t; +SELECT rpad('hi'::citext, 5, 'xy'::text ) = 'hixyx' AS t; + +SELECT rtrim('trim '::citext ) = 'trim' AS t; +SELECT rtrim('trimxxxx'::citext, 'x'::citext) = 'trim' AS t; +SELECT rtrim('trimxxxx'::text, 'x'::citext) = 'trim' AS t; +SELECT rtrim('trimxxxx'::text, 'x'::text ) = 'trim' AS t; + +SELECT split_part('abc~@~def~@~ghi'::citext, '~@~', 2) = 'def' AS t; +SELECT split_part('abcTdefTghi'::citext, 't', 2) = 'def' AS t; +SELECT split_part('abcTdefTghi'::citext, 't'::citext, 2) = 'def' AS t; +SELECT split_part('abcTdefTghi', 't'::citext, 2) = 'def' AS t; + +SELECT strpos('high'::citext, 'gh' ) = 3 AS t; +SELECT strpos('high', 'gh'::citext) = 3 AS t; +SELECT strpos('high'::citext, 'gh'::citext) = 3 AS t; +SELECT strpos('high'::citext, 'GH' ) = 3 AS t; +SELECT strpos('high', 'GH'::citext) = 3 AS t; +SELECT strpos('high'::citext, 'GH'::citext) = 3 AS t; + +-- to_ascii() does not support UTF-8. +-- to_hex() takes a numeric argument. +SELECT substr('alphabet', 3, 2) = 'ph' AS t; +SELECT translate('abcdefabcdef'::citext, 'cd', 'XX') = 'abXXefabXXef' AS t; +SELECT translate('abcdefabcdef'::citext, 'CD', 'XX') = 'abXXefabXXef' AS t; +SELECT translate('abcdefabcdef'::citext, 'CD'::citext, 'XX') = 'abXXefabXXef' AS t; +SELECT translate('abcdefabcdef', 'CD'::citext, 'XX') = 'abXXefabXXef' AS t; + +-- Table 9-20. Formatting Functions +SELECT to_date('05 Dec 2000'::citext, 'DD Mon YYYY'::citext) + = to_date('05 Dec 2000', 'DD Mon YYYY') AS t; +SELECT to_date('05 Dec 2000'::citext, 'DD Mon YYYY') + = to_date('05 Dec 2000', 'DD Mon YYYY') AS t; +SELECT to_date('05 Dec 2000', 'DD Mon YYYY'::citext) + = to_date('05 Dec 2000', 'DD Mon YYYY') AS t; + +SELECT to_number('12,454.8-'::citext, '99G999D9S'::citext) + = to_number('12,454.8-', '99G999D9S') AS t; +SELECT to_number('12,454.8-'::citext, '99G999D9S') + = to_number('12,454.8-', '99G999D9S') AS t; +SELECT to_number('12,454.8-', '99G999D9S'::citext) + = to_number('12,454.8-', '99G999D9S') AS t; + +SELECT to_timestamp('05 Dec 2000'::citext, 'DD Mon YYYY'::citext) + = to_timestamp('05 Dec 2000', 'DD Mon YYYY') AS t; +SELECT to_timestamp('05 Dec 2000'::citext, 'DD Mon YYYY') + = to_timestamp('05 Dec 2000', 'DD Mon YYYY') AS t; +SELECT to_timestamp('05 Dec 2000', 'DD Mon YYYY'::citext) + = to_timestamp('05 Dec 2000', 'DD Mon YYYY') AS t; + +-- Try assigning function results to a column. +SELECT COUNT(*) = 8::bigint AS t FROM try; +INSERT INTO try +VALUES ( to_char( now()::timestamp, 'HH12:MI:SS') ), + ( to_char( now() + '1 sec'::interval, 'HH12:MI:SS') ), -- timetamptz + ( to_char( '15h 2m 12s'::interval, 'HH24:MI:SS') ), + ( to_char( current_date, '999') ), + ( to_char( 125::int, '999') ), + ( to_char( 127::int4, '999') ), + ( to_char( 126::int8, '999') ), + ( to_char( 128.8::real, '999D9') ), + ( to_char( 125.7::float4, '999D9') ), + ( to_char( 125.9::float8, '999D9') ), + ( to_char( -125.8::numeric, '999D99S') ); + +SELECT COUNT(*) = 19::bigint AS t FROM try; + +SELECT like_escape( name, '' ) = like_escape( name::text, '' ) AS t FROM srt; +SELECT like_escape( name::text, ''::citext ) = like_escape( name::text, '' ) AS t FROM srt; + +-- Ensure correct behavior for citext with materialized views. +CREATE TABLE citext_table ( + id serial primary key, + name citext +); +INSERT INTO citext_table (name) + VALUES ('one'), ('two'), ('three'), (NULL), (NULL); +CREATE MATERIALIZED VIEW citext_matview AS + SELECT * FROM citext_table; +CREATE UNIQUE INDEX citext_matview_id + ON citext_matview (id); +SELECT * + FROM citext_matview m + FULL JOIN citext_table t ON (t.id = m.id AND t *= m) + WHERE t.id IS NULL OR m.id IS NULL; +UPDATE citext_table SET name = 'Two' WHERE name = 'TWO'; +SELECT * + FROM citext_matview m + FULL JOIN citext_table t ON (t.id = m.id AND t *= m) + WHERE t.id IS NULL OR m.id IS NULL; +REFRESH MATERIALIZED VIEW CONCURRENTLY citext_matview; +SELECT * FROM citext_matview ORDER BY id; + +-- test citext_pattern_cmp() function explicitly. +SELECT citext_pattern_cmp('aardvark'::citext, 'aardvark'::citext) AS zero; +SELECT citext_pattern_cmp('aardvark'::citext, 'aardVark'::citext) AS zero; +SELECT citext_pattern_cmp('AARDVARK'::citext, 'AARDVARK'::citext) AS zero; +SELECT citext_pattern_cmp('B'::citext, 'a'::citext) > 0 AS true; +SELECT citext_pattern_cmp('a'::citext, 'B'::citext) < 0 AS true; +SELECT citext_pattern_cmp('A'::citext, 'b'::citext) < 0 AS true; +SELECT citext_pattern_cmp('ABCD'::citext, 'abc'::citext) > 0 AS true; +SELECT citext_pattern_cmp('ABC'::citext, 'abcd'::citext) < 0 AS true; + +-- test operator functions +-- lt +SELECT citext_pattern_lt('a'::citext, 'b'::citext) AS true; +SELECT citext_pattern_lt('A'::citext, 'b'::citext) AS true; +SELECT citext_pattern_lt('a'::citext, 'B'::citext) AS true; +SELECT citext_pattern_lt('b'::citext, 'a'::citext) AS false; +SELECT citext_pattern_lt('B'::citext, 'a'::citext) AS false; +SELECT citext_pattern_lt('b'::citext, 'A'::citext) AS false; +-- le +SELECT citext_pattern_le('a'::citext, 'a'::citext) AS true; +SELECT citext_pattern_le('a'::citext, 'A'::citext) AS true; +SELECT citext_pattern_le('A'::citext, 'a'::citext) AS true; +SELECT citext_pattern_le('A'::citext, 'A'::citext) AS true; +SELECT citext_pattern_le('a'::citext, 'B'::citext) AS true; +SELECT citext_pattern_le('A'::citext, 'b'::citext) AS true; +SELECT citext_pattern_le('a'::citext, 'B'::citext) AS true; +SELECT citext_pattern_le('b'::citext, 'a'::citext) AS false; +SELECT citext_pattern_le('B'::citext, 'a'::citext) AS false; +SELECT citext_pattern_le('b'::citext, 'A'::citext) AS false; +-- gt +SELECT citext_pattern_gt('a'::citext, 'b'::citext) AS false; +SELECT citext_pattern_gt('A'::citext, 'b'::citext) AS false; +SELECT citext_pattern_gt('a'::citext, 'B'::citext) AS false; +SELECT citext_pattern_gt('b'::citext, 'a'::citext) AS true; +SELECT citext_pattern_gt('B'::citext, 'a'::citext) AS true; +SELECT citext_pattern_gt('b'::citext, 'A'::citext) AS true; +-- ge +SELECT citext_pattern_ge('a'::citext, 'a'::citext) AS true; +SELECT citext_pattern_ge('a'::citext, 'A'::citext) AS true; +SELECT citext_pattern_ge('A'::citext, 'a'::citext) AS true; +SELECT citext_pattern_ge('A'::citext, 'A'::citext) AS true; +SELECT citext_pattern_ge('a'::citext, 'B'::citext) AS false; +SELECT citext_pattern_ge('A'::citext, 'b'::citext) AS false; +SELECT citext_pattern_ge('a'::citext, 'B'::citext) AS false; +SELECT citext_pattern_ge('b'::citext, 'a'::citext) AS true; +SELECT citext_pattern_ge('B'::citext, 'a'::citext) AS true; +SELECT citext_pattern_ge('b'::citext, 'A'::citext) AS true; + +-- Multi-byte tests below are disabled like the sanity tests above. +-- Uncomment to run them. + +-- Test ~<~ and ~<=~ +SELECT 'a'::citext ~<~ 'B'::citext AS t; +SELECT 'b'::citext ~<~ 'A'::citext AS f; +-- SELECT 'à'::citext ~<~ 'À'::citext AS f; +SELECT 'a'::citext ~<=~ 'B'::citext AS t; +SELECT 'a'::citext ~<=~ 'A'::citext AS t; +-- SELECT 'à'::citext ~<=~ 'À'::citext AS t; + +-- Test ~>~ and ~>=~ +SELECT 'B'::citext ~>~ 'a'::citext AS t; +SELECT 'b'::citext ~>~ 'A'::citext AS t; +-- SELECT 'à'::citext ~>~ 'À'::citext AS f; +SELECT 'B'::citext ~>~ 'b'::citext AS f; +SELECT 'B'::citext ~>=~ 'b'::citext AS t; +-- SELECT 'à'::citext ~>=~ 'À'::citext AS t; + +-- Test implicit casting. citext casts to text, but not vice-versa. +SELECT 'B'::citext ~<~ 'a'::text AS t; -- text wins. +SELECT 'B'::citext ~<=~ 'a'::text AS t; -- text wins. + +SELECT 'a'::citext ~>~ 'B'::text AS t; -- text wins. +SELECT 'a'::citext ~>=~ 'B'::text AS t; -- text wins. + +-- Test implicit casting. citext casts to varchar, but not vice-versa. +SELECT 'B'::citext ~<~ 'a'::varchar AS t; -- varchar wins. +SELECT 'B'::citext ~<=~ 'a'::varchar AS t; -- varchar wins. + +SELECT 'a'::citext ~>~ 'B'::varchar AS t; -- varchar wins. +SELECT 'a'::citext ~>=~ 'B'::varchar AS t; -- varchar wins. |