| -- |
| -- STRINGS |
| -- Test various data entry syntaxes. |
| -- |
| |
| -- create required tables |
| CREATE TABLE CHAR_STRINGS_TBL(f1 char(4)); |
| INSERT INTO CHAR_STRINGS_TBL (f1) VALUES ('a'), |
| ('ab'), |
| ('abcd'), |
| ('abcd '); |
| |
| CREATE TABLE VARCHAR_STRINGS_TBL(f1 varchar(4)); |
| INSERT INTO VARCHAR_STRINGS_TBL (f1) VALUES ('a'), |
| ('ab'), |
| ('abcd'), |
| ('abcd '); |
| |
| CREATE TABLE TEXT_STRINGS_TBL (f1 text); |
| INSERT INTO TEXT_STRINGS_TBL VALUES ('doh!'), |
| ('hi de ho neighbor'); |
| |
| -- SQL string continuation syntax |
| -- E021-03 character string literals |
| SELECT 'first line' |
| ' - next line' |
| ' - third line' |
| AS "Three lines to one"; |
| |
| -- illegal string continuation syntax |
| SELECT 'first line' |
| ' - next line' /* this comment is not allowed here */ |
| ' - third line' |
| AS "Illegal comment within continuation"; |
| |
| -- bytea |
| SET bytea_output TO hex; |
| SELECT E'\\xDeAdBeEf'::bytea; |
| SELECT E'\\x De Ad Be Ef '::bytea; |
| SELECT E'\\xDeAdBeE'::bytea; |
| SELECT E'\\xDeAdBeEx'::bytea; |
| SELECT E'\\xDe00BeEf'::bytea; |
| SELECT E'DeAdBeEf'::bytea; |
| SELECT E'De\\000dBeEf'::bytea; |
| SELECT E'De\123dBeEf'::bytea; |
| SELECT E'De\\123dBeEf'::bytea; |
| SELECT E'De\\678dBeEf'::bytea; |
| |
| SET bytea_output TO escape; |
| SELECT E'\\xDeAdBeEf'::bytea; |
| SELECT E'\\x De Ad Be Ef '::bytea; |
| SELECT E'\\xDe00BeEf'::bytea; |
| SELECT E'DeAdBeEf'::bytea; |
| SELECT E'De\\000dBeEf'::bytea; |
| SELECT E'De\\123dBeEf'::bytea; |
| |
| -- Unicode escapes |
| SET standard_conforming_strings TO on; |
| |
| SELECT U&'d\0061t\+000061' AS U&"d\0061t\+000061"; |
| SELECT U&'d!0061t\+000061' UESCAPE '!' AS U&"d*0061t\+000061" UESCAPE '*'; |
| SELECT U&'a\\b' AS "a\b"; |
| |
| SELECT U&' \' UESCAPE '!' AS "tricky"; |
| SELECT 'tricky' AS U&"\" UESCAPE '!'; |
| |
| SELECT U&'wrong: \061'; |
| SELECT U&'wrong: \+0061'; |
| SELECT U&'wrong: +0061' UESCAPE +; |
| SELECT U&'wrong: +0061' UESCAPE '+'; |
| |
| SELECT U&'wrong: \db99'; |
| SELECT U&'wrong: \db99xy'; |
| SELECT U&'wrong: \db99\\'; |
| SELECT U&'wrong: \db99\0061'; |
| SELECT U&'wrong: \+00db99\+000061'; |
| SELECT U&'wrong: \+2FFFFF'; |
| |
| -- while we're here, check the same cases in E-style literals |
| SELECT E'd\u0061t\U00000061' AS "data"; |
| SELECT E'a\\b' AS "a\b"; |
| SELECT E'wrong: \u061'; |
| SELECT E'wrong: \U0061'; |
| SELECT E'wrong: \udb99'; |
| SELECT E'wrong: \udb99xy'; |
| SELECT E'wrong: \udb99\\'; |
| SELECT E'wrong: \udb99\u0061'; |
| SELECT E'wrong: \U0000db99\U00000061'; |
| SELECT E'wrong: \U002FFFFF'; |
| |
| SET standard_conforming_strings TO off; |
| |
| SELECT U&'d\0061t\+000061' AS U&"d\0061t\+000061"; |
| SELECT U&'d!0061t\+000061' UESCAPE '!' AS U&"d*0061t\+000061" UESCAPE '*'; |
| |
| SELECT U&' \' UESCAPE '!' AS "tricky"; |
| SELECT 'tricky' AS U&"\" UESCAPE '!'; |
| |
| SELECT U&'wrong: \061'; |
| SELECT U&'wrong: \+0061'; |
| SELECT U&'wrong: +0061' UESCAPE '+'; |
| |
| RESET standard_conforming_strings; |
| |
| -- bytea |
| SET bytea_output TO hex; |
| SELECT E'\\xDeAdBeEf'::bytea; |
| SELECT E'\\x De Ad Be Ef '::bytea; |
| SELECT E'\\xDeAdBeE'::bytea; |
| SELECT E'\\xDeAdBeEx'::bytea; |
| SELECT E'\\xDe00BeEf'::bytea; |
| SELECT E'DeAdBeEf'::bytea; |
| SELECT E'De\\000dBeEf'::bytea; |
| SELECT E'De\123dBeEf'::bytea; |
| SELECT E'De\\123dBeEf'::bytea; |
| SELECT E'De\\678dBeEf'::bytea; |
| |
| SET bytea_output TO escape; |
| SELECT E'\\xDeAdBeEf'::bytea; |
| SELECT E'\\x De Ad Be Ef '::bytea; |
| SELECT E'\\xDe00BeEf'::bytea; |
| SELECT E'DeAdBeEf'::bytea; |
| SELECT E'De\\000dBeEf'::bytea; |
| SELECT E'De\\123dBeEf'::bytea; |
| |
| -- |
| -- test conversions between various string types |
| -- E021-10 implicit casting among the character data types |
| -- |
| |
| SELECT CAST(f1 AS text) AS "text(char)" FROM CHAR_STRINGS_TBL; |
| |
| SELECT CAST(f1 AS text) AS "text(varchar)" FROM VARCHAR_STRINGS_TBL; |
| |
| SELECT CAST(name 'namefield' AS text) AS "text(name)"; |
| |
| -- since this is an explicit cast, it should truncate w/o error: |
| SELECT CAST(f1 AS char(10)) AS "char(text)" FROM TEXT_STRINGS_TBL; |
| -- note: implicit-cast case is tested in char.sql |
| |
| SELECT CAST(f1 AS char(20)) AS "char(text)" FROM TEXT_STRINGS_TBL; |
| |
| SELECT CAST(f1 AS char(10)) AS "char(varchar)" FROM VARCHAR_STRINGS_TBL; |
| |
| SELECT CAST(name 'namefield' AS char(10)) AS "char(name)"; |
| |
| SELECT CAST(f1 AS varchar) AS "varchar(text)" FROM TEXT_STRINGS_TBL; |
| |
| SELECT CAST(f1 AS varchar) AS "varchar(char)" FROM CHAR_STRINGS_TBL; |
| |
| SELECT CAST(name 'namefield' AS varchar) AS "varchar(name)"; |
| |
| -- |
| -- test SQL string functions |
| -- E### and T### are feature reference numbers from SQL99 |
| -- |
| |
| -- E021-09 trim function |
| SELECT TRIM(BOTH FROM ' bunch o blanks ') = 'bunch o blanks' AS "bunch o blanks"; |
| |
| SELECT TRIM(LEADING FROM ' bunch o blanks ') = 'bunch o blanks ' AS "bunch o blanks "; |
| |
| SELECT TRIM(TRAILING FROM ' bunch o blanks ') = ' bunch o blanks' AS " bunch o blanks"; |
| |
| SELECT TRIM(BOTH 'x' FROM 'xxxxxsome Xsxxxxx') = 'some Xs' AS "some Xs"; |
| |
| -- E021-06 substring expression |
| SELECT SUBSTRING('1234567890' FROM 3) = '34567890' AS "34567890"; |
| |
| SELECT SUBSTRING('1234567890' FROM 4 FOR 3) = '456' AS "456"; |
| |
| -- test overflow cases |
| SELECT SUBSTRING('string' FROM 2 FOR 2147483646) AS "tring"; |
| SELECT SUBSTRING('string' FROM -10 FOR 2147483646) AS "string"; |
| SELECT SUBSTRING('string' FROM -10 FOR -2147483646) AS "error"; |
| |
| -- T581 regular expression substring (with SQL's bizarre regexp syntax) |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a#"(b_d)#"%' ESCAPE '#') AS "bcd"; |
| -- obsolete SQL99 syntax |
| SELECT SUBSTRING('abcdefg' FROM 'a#"(b_d)#"%' FOR '#') AS "bcd"; |
| |
| -- No match should return NULL |
| SELECT SUBSTRING('abcdefg' SIMILAR '#"(b_d)#"%' ESCAPE '#') IS NULL AS "True"; |
| |
| -- Null inputs should return NULL |
| SELECT SUBSTRING('abcdefg' SIMILAR '%' ESCAPE NULL) IS NULL AS "True"; |
| SELECT SUBSTRING(NULL SIMILAR '%' ESCAPE '#') IS NULL AS "True"; |
| SELECT SUBSTRING('abcdefg' SIMILAR NULL ESCAPE '#') IS NULL AS "True"; |
| |
| -- The first and last parts should act non-greedy |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a#"%#"g' ESCAPE '#') AS "bcdef"; |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a*#"%#"g*' ESCAPE '#') AS "abcdefg"; |
| |
| -- Vertical bar in any part affects only that part |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a|b#"%#"g' ESCAPE '#') AS "bcdef"; |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a#"%#"x|g' ESCAPE '#') AS "bcdef"; |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a#"%|ab#"g' ESCAPE '#') AS "bcdef"; |
| |
| -- Can't have more than two part separators |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a*#"%#"g*#"x' ESCAPE '#') AS "error"; |
| |
| -- Postgres extension: with 0 or 1 separator, assume parts 1 and 3 are empty |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a#"%g' ESCAPE '#') AS "bcdefg"; |
| SELECT SUBSTRING('abcdefg' SIMILAR 'a%g' ESCAPE '#') AS "abcdefg"; |
| |
| -- substring() with just two arguments is not allowed by SQL spec; |
| -- we accept it, but we interpret the pattern as a POSIX regexp not SQL |
| SELECT SUBSTRING('abcdefg' FROM 'c.e') AS "cde"; |
| |
| -- With a parenthesized subexpression, return only what matches the subexpr |
| SELECT SUBSTRING('abcdefg' FROM 'b(.*)f') AS "cde"; |
| |
| -- Check behavior of SIMILAR TO, which uses largely the same regexp variant |
| SELECT 'abcdefg' SIMILAR TO '_bcd%' AS true; |
| SELECT 'abcdefg' SIMILAR TO 'bcd%' AS false; |
| SELECT 'abcdefg' SIMILAR TO '_bcd#%' ESCAPE '#' AS false; |
| SELECT 'abcd%' SIMILAR TO '_bcd#%' ESCAPE '#' AS true; |
| -- Postgres uses '\' as the default escape character, which is not per spec |
| SELECT 'abcdefg' SIMILAR TO '_bcd\%' AS false; |
| -- and an empty string to mean "no escape", which is also not per spec |
| SELECT 'abcd\efg' SIMILAR TO '_bcd\%' ESCAPE '' AS true; |
| -- these behaviors are per spec, though: |
| SELECT 'abcdefg' SIMILAR TO '_bcd%' ESCAPE NULL AS null; |
| SELECT 'abcdefg' SIMILAR TO '_bcd#%' ESCAPE '##' AS error; |
| |
| -- Test back reference in regexp_replace |
| SELECT regexp_replace('1112223333', E'(\\d{3})(\\d{3})(\\d{4})', E'(\\1) \\2-\\3'); |
| SELECT regexp_replace('AAA BBB CCC ', E'\\s+', ' ', 'g'); |
| SELECT regexp_replace('AAA', '^|$', 'Z', 'g'); |
| SELECT regexp_replace('AAA aaa', 'A+', 'Z', 'gi'); |
| -- invalid regexp option |
| SELECT regexp_replace('AAA aaa', 'A+', 'Z', 'z'); |
| |
| -- set so we can tell NULL from empty string |
| \pset null '\\N' |
| |
| -- return all matches from regexp |
| SELECT regexp_matches('foobarbequebaz', $re$(bar)(beque)$re$); |
| |
| -- test case insensitive |
| SELECT regexp_matches('foObARbEqUEbAz', $re$(bar)(beque)$re$, 'i'); |
| |
| -- global option - more than one match |
| SELECT regexp_matches('foobarbequebazilbarfbonk', $re$(b[^b]+)(b[^b]+)$re$, 'g'); |
| |
| -- empty capture group (matched empty string) |
| SELECT regexp_matches('foobarbequebaz', $re$(bar)(.*)(beque)$re$); |
| -- no match |
| SELECT regexp_matches('foobarbequebaz', $re$(bar)(.+)(beque)$re$); |
| -- optional capture group did not match, null entry in array |
| SELECT regexp_matches('foobarbequebaz', $re$(bar)(.+)?(beque)$re$); |
| |
| -- no capture groups |
| SELECT regexp_matches('foobarbequebaz', $re$barbeque$re$); |
| |
| -- start/end-of-line matches are of zero length |
| SELECT regexp_matches('foo' || chr(10) || 'bar' || chr(10) || 'bequq' || chr(10) || 'baz', '^', 'mg'); |
| SELECT regexp_matches('foo' || chr(10) || 'bar' || chr(10) || 'bequq' || chr(10) || 'baz', '$', 'mg'); |
| SELECT regexp_matches('1' || chr(10) || '2' || chr(10) || '3' || chr(10) || '4' || chr(10), '^.?', 'mg'); |
| SELECT regexp_matches(chr(10) || '1' || chr(10) || '2' || chr(10) || '3' || chr(10) || '4' || chr(10), '.?$', 'mg'); |
| SELECT regexp_matches(chr(10) || '1' || chr(10) || '2' || chr(10) || '3' || chr(10) || '4', '.?$', 'mg'); |
| |
| -- give me errors |
| SELECT regexp_matches('foobarbequebaz', $re$(bar)(beque)$re$, 'gz'); |
| SELECT regexp_matches('foobarbequebaz', $re$(barbeque$re$); |
| SELECT regexp_matches('foobarbequebaz', $re$(bar)(beque){2,1}$re$); |
| |
| -- split string on regexp |
| SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumps over the lazy dog', $re$\s+$re$) AS foo; |
| SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', $re$\s+$re$); |
| |
| SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumps over the lazy dog', $re$\s*$re$) AS foo; |
| SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', $re$\s*$re$); |
| SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumps over the lazy dog', '') AS foo; |
| SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', ''); |
| -- case insensitive |
| SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'i') AS foo; |
| SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'i'); |
| -- no match of pattern |
| SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumps over the lazy dog', 'nomatch') AS foo; |
| SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', 'nomatch'); |
| -- some corner cases |
| SELECT regexp_split_to_array('123456','1'); |
| SELECT regexp_split_to_array('123456','6'); |
| SELECT regexp_split_to_array('123456','.'); |
| SELECT regexp_split_to_array('123456',''); |
| SELECT regexp_split_to_array('123456','(?:)'); |
| SELECT regexp_split_to_array('1',''); |
| -- errors |
| SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'zippy') AS foo; |
| SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'iz'); |
| -- global option meaningless for regexp_split |
| SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'g') AS foo; |
| SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'g'); |
| |
| -- change NULL-display back |
| \pset null '' |
| |
| -- E021-11 position expression |
| SELECT POSITION('4' IN '1234567890') = '4' AS "4"; |
| |
| SELECT POSITION('5' IN '1234567890') = '5' AS "5"; |
| |
| -- T312 character overlay function |
| SELECT OVERLAY('abcdef' PLACING '45' FROM 4) AS "abc45f"; |
| |
| SELECT OVERLAY('yabadoo' PLACING 'daba' FROM 5) AS "yabadaba"; |
| |
| SELECT OVERLAY('yabadoo' PLACING 'daba' FROM 5 FOR 0) AS "yabadabadoo"; |
| |
| SELECT OVERLAY('babosa' PLACING 'ubb' FROM 2 FOR 4) AS "bubba"; |
| |
| -- |
| -- test LIKE |
| -- Be sure to form every test as a LIKE/NOT LIKE pair. |
| -- |
| |
| -- simplest examples |
| -- E061-04 like predicate |
| SELECT 'hawkeye' LIKE 'h%' AS "true"; |
| SELECT 'hawkeye' NOT LIKE 'h%' AS "false"; |
| |
| SELECT 'hawkeye' LIKE 'H%' AS "false"; |
| SELECT 'hawkeye' NOT LIKE 'H%' AS "true"; |
| |
| SELECT 'hawkeye' LIKE 'indio%' AS "false"; |
| SELECT 'hawkeye' NOT LIKE 'indio%' AS "true"; |
| |
| SELECT 'hawkeye' LIKE 'h%eye' AS "true"; |
| SELECT 'hawkeye' NOT LIKE 'h%eye' AS "false"; |
| |
| SELECT 'indio' LIKE '_ndio' AS "true"; |
| SELECT 'indio' NOT LIKE '_ndio' AS "false"; |
| |
| SELECT 'indio' LIKE 'in__o' AS "true"; |
| SELECT 'indio' NOT LIKE 'in__o' AS "false"; |
| |
| SELECT 'indio' LIKE 'in_o' AS "false"; |
| SELECT 'indio' NOT LIKE 'in_o' AS "true"; |
| |
| SELECT 'abc'::name LIKE '_b_' AS "true"; |
| SELECT 'abc'::name NOT LIKE '_b_' AS "false"; |
| |
| SELECT 'abc'::bytea LIKE '_b_'::bytea AS "true"; |
| SELECT 'abc'::bytea NOT LIKE '_b_'::bytea AS "false"; |
| |
| -- unused escape character |
| SELECT 'hawkeye' LIKE 'h%' ESCAPE '#' AS "true"; |
| SELECT 'hawkeye' NOT LIKE 'h%' ESCAPE '#' AS "false"; |
| |
| SELECT 'indio' LIKE 'ind_o' ESCAPE '$' AS "true"; |
| SELECT 'indio' NOT LIKE 'ind_o' ESCAPE '$' AS "false"; |
| |
| -- escape character |
| -- E061-05 like predicate with escape clause |
| SELECT 'h%' LIKE 'h#%' ESCAPE '#' AS "true"; |
| SELECT 'h%' NOT LIKE 'h#%' ESCAPE '#' AS "false"; |
| |
| SELECT 'h%wkeye' LIKE 'h#%' ESCAPE '#' AS "false"; |
| SELECT 'h%wkeye' NOT LIKE 'h#%' ESCAPE '#' AS "true"; |
| |
| SELECT 'h%wkeye' LIKE 'h#%%' ESCAPE '#' AS "true"; |
| SELECT 'h%wkeye' NOT LIKE 'h#%%' ESCAPE '#' AS "false"; |
| |
| SELECT 'h%awkeye' LIKE 'h#%a%k%e' ESCAPE '#' AS "true"; |
| SELECT 'h%awkeye' NOT LIKE 'h#%a%k%e' ESCAPE '#' AS "false"; |
| |
| SELECT 'indio' LIKE '_ndio' ESCAPE '$' AS "true"; |
| SELECT 'indio' NOT LIKE '_ndio' ESCAPE '$' AS "false"; |
| |
| SELECT 'i_dio' LIKE 'i$_d_o' ESCAPE '$' AS "true"; |
| SELECT 'i_dio' NOT LIKE 'i$_d_o' ESCAPE '$' AS "false"; |
| |
| SELECT 'i_dio' LIKE 'i$_nd_o' ESCAPE '$' AS "false"; |
| SELECT 'i_dio' NOT LIKE 'i$_nd_o' ESCAPE '$' AS "true"; |
| |
| SELECT 'i_dio' LIKE 'i$_d%o' ESCAPE '$' AS "true"; |
| SELECT 'i_dio' NOT LIKE 'i$_d%o' ESCAPE '$' AS "false"; |
| |
| SELECT 'a_c'::bytea LIKE 'a$__'::bytea ESCAPE '$'::bytea AS "true"; |
| SELECT 'a_c'::bytea NOT LIKE 'a$__'::bytea ESCAPE '$'::bytea AS "false"; |
| |
| -- escape character same as pattern character |
| SELECT 'maca' LIKE 'm%aca' ESCAPE '%' AS "true"; |
| SELECT 'maca' NOT LIKE 'm%aca' ESCAPE '%' AS "false"; |
| |
| SELECT 'ma%a' LIKE 'm%a%%a' ESCAPE '%' AS "true"; |
| SELECT 'ma%a' NOT LIKE 'm%a%%a' ESCAPE '%' AS "false"; |
| |
| SELECT 'bear' LIKE 'b_ear' ESCAPE '_' AS "true"; |
| SELECT 'bear' NOT LIKE 'b_ear' ESCAPE '_' AS "false"; |
| |
| SELECT 'be_r' LIKE 'b_e__r' ESCAPE '_' AS "true"; |
| SELECT 'be_r' NOT LIKE 'b_e__r' ESCAPE '_' AS "false"; |
| |
| SELECT 'be_r' LIKE '__e__r' ESCAPE '_' AS "false"; |
| SELECT 'be_r' NOT LIKE '__e__r' ESCAPE '_' AS "true"; |
| |
| |
| -- |
| -- test ILIKE (case-insensitive LIKE) |
| -- Be sure to form every test as an ILIKE/NOT ILIKE pair. |
| -- |
| |
| SELECT 'hawkeye' ILIKE 'h%' AS "true"; |
| SELECT 'hawkeye' NOT ILIKE 'h%' AS "false"; |
| |
| SELECT 'hawkeye' ILIKE 'H%' AS "true"; |
| SELECT 'hawkeye' NOT ILIKE 'H%' AS "false"; |
| |
| SELECT 'hawkeye' ILIKE 'H%Eye' AS "true"; |
| SELECT 'hawkeye' NOT ILIKE 'H%Eye' AS "false"; |
| |
| SELECT 'Hawkeye' ILIKE 'h%' AS "true"; |
| SELECT 'Hawkeye' NOT ILIKE 'h%' AS "false"; |
| |
| SELECT 'ABC'::name ILIKE '_b_' AS "true"; |
| SELECT 'ABC'::name NOT ILIKE '_b_' AS "false"; |
| |
| -- |
| -- test %/_ combination cases, cf bugs #4821 and #5478 |
| -- |
| |
| SELECT 'foo' LIKE '_%' as t, 'f' LIKE '_%' as t, '' LIKE '_%' as f; |
| SELECT 'foo' LIKE '%_' as t, 'f' LIKE '%_' as t, '' LIKE '%_' as f; |
| |
| SELECT 'foo' LIKE '__%' as t, 'foo' LIKE '___%' as t, 'foo' LIKE '____%' as f; |
| SELECT 'foo' LIKE '%__' as t, 'foo' LIKE '%___' as t, 'foo' LIKE '%____' as f; |
| |
| SELECT 'jack' LIKE '%____%' AS t; |
| |
| |
| -- |
| -- basic tests of LIKE with indexes |
| -- |
| |
| CREATE TABLE texttest (a text PRIMARY KEY, b int); |
| SELECT * FROM texttest WHERE a LIKE '%1%'; |
| |
| CREATE TABLE byteatest (a bytea PRIMARY KEY, b int); |
| SELECT * FROM byteatest WHERE a LIKE '%1%'; |
| |
| DROP TABLE texttest, byteatest; |
| |
| |
| -- |
| -- test implicit type conversion |
| -- |
| |
| -- E021-07 character concatenation |
| SELECT 'unknown' || ' and unknown' AS "Concat unknown types"; |
| |
| SELECT text 'text' || ' and unknown' AS "Concat text to unknown type"; |
| |
| SELECT char(20) 'characters' || ' and text' AS "Concat char to unknown type"; |
| |
| SELECT text 'text' || char(20) ' and characters' AS "Concat text to char"; |
| |
| SELECT text 'text' || varchar ' and varchar' AS "Concat text to varchar"; |
| |
| -- |
| -- test substr with toasted text values |
| -- |
| CREATE TABLE toasttest(f1 text); |
| |
| insert into toasttest values(repeat('1234567890',10000)); |
| insert into toasttest values(repeat('1234567890',10000)); |
| |
| -- |
| -- Ensure that some values are uncompressed, to test the faster substring |
| -- operation used in that case |
| -- |
| alter table toasttest alter column f1 set storage external; |
| insert into toasttest values(repeat('1234567890',10000)); |
| insert into toasttest values(repeat('1234567890',10000)); |
| |
| -- If the starting position is zero or less, then return from the start of the string |
| -- adjusting the length to be consistent with the "negative start" per SQL. |
| SELECT substr(f1, -1, 5) from toasttest; |
| |
| -- If the length is less than zero, an ERROR is thrown. |
| SELECT substr(f1, 5, -1) from toasttest; |
| |
| -- If no third argument (length) is provided, the length to the end of the |
| -- string is assumed. |
| SELECT substr(f1, 99995) from toasttest; |
| |
| -- If start plus length is > string length, the result is truncated to |
| -- string length |
| SELECT substr(f1, 99995, 10) from toasttest; |
| |
| -- GPDB: These tests are sensitive to block size. In GPDB, the block |
| -- size is 32 kB, whereas in PostgreSQL it's 8kB. Therefore make |
| -- the data 4x larger here. |
| TRUNCATE TABLE toasttest; |
| INSERT INTO toasttest values (repeat('1234567890',300*4)); |
| INSERT INTO toasttest values (repeat('1234567890',300*4)); |
| INSERT INTO toasttest values (repeat('1234567890',300*4)); |
| INSERT INTO toasttest values (repeat('1234567890',300*4)); |
| -- expect >0 blocks |
| SELECT pg_relation_size(reltoastrelid) = 0 AS is_empty |
| FROM pg_class where relname = 'toasttest'; |
| |
| TRUNCATE TABLE toasttest; |
| ALTER TABLE toasttest set (toast_tuple_target = 4080); |
| INSERT INTO toasttest values (repeat('1234567890',300)); |
| INSERT INTO toasttest values (repeat('1234567890',300)); |
| INSERT INTO toasttest values (repeat('1234567890',300)); |
| INSERT INTO toasttest values (repeat('1234567890',300)); |
| -- expect 0 blocks |
| SELECT pg_relation_size(reltoastrelid) = 0 AS is_empty |
| FROM pg_class where relname = 'toasttest'; |
| |
| DROP TABLE toasttest; |
| |
| -- |
| -- test substr with toasted bytea values |
| -- |
| CREATE TABLE toasttest(f1 bytea); |
| |
| insert into toasttest values("decode"(repeat('1234567890',10000),'escape')); |
| insert into toasttest values(pg_catalog.decode(repeat('1234567890',10000),'escape')); |
| |
| -- |
| -- Ensure that some values are uncompressed, to test the faster substring |
| -- operation used in that case |
| -- |
| alter table toasttest alter column f1 set storage external; |
| insert into toasttest values("decode"(repeat('1234567890',10000),'escape')); |
| insert into toasttest values(pg_catalog.decode(repeat('1234567890',10000),'escape')); |
| |
| -- If the starting position is zero or less, then return from the start of the string |
| -- adjusting the length to be consistent with the "negative start" per SQL. |
| SELECT substr(f1, -1, 5) from toasttest; |
| |
| -- If the length is less than zero, an ERROR is thrown. |
| SELECT substr(f1, 5, -1) from toasttest; |
| |
| -- If no third argument (length) is provided, the length to the end of the |
| -- string is assumed. |
| SELECT substr(f1, 99995) from toasttest; |
| |
| -- If start plus length is > string length, the result is truncated to |
| -- string length |
| SELECT substr(f1, 99995, 10) from toasttest; |
| |
| DROP TABLE toasttest; |
| |
| -- test internally compressing datums |
| |
| -- this tests compressing a datum to a very small size which exercises a |
| -- corner case in packed-varlena handling: even though small, the compressed |
| -- datum must be given a 4-byte header because there are no bits to indicate |
| -- compression in a 1-byte header |
| |
| CREATE TABLE toasttest (c char(4096)); |
| INSERT INTO toasttest VALUES('x'); |
| SELECT length(c), c::text FROM toasttest; |
| SELECT c FROM toasttest; |
| DROP TABLE toasttest; |
| |
| -- |
| -- test length |
| -- |
| |
| SELECT length('abcdef') AS "length_6"; |
| |
| -- |
| -- test strpos |
| -- |
| |
| SELECT strpos('abcdef', 'cd') AS "pos_3"; |
| |
| SELECT strpos('abcdef', 'xy') AS "pos_0"; |
| |
| SELECT strpos('abcdef', '') AS "pos_1"; |
| |
| SELECT strpos('', 'xy') AS "pos_0"; |
| |
| SELECT strpos('', '') AS "pos_1"; |
| |
| -- |
| -- test replace |
| -- |
| SELECT replace('abcdef', 'de', '45') AS "abc45f"; |
| |
| SELECT replace('yabadabadoo', 'ba', '123') AS "ya123da123doo"; |
| |
| SELECT replace('yabadoo', 'bad', '') AS "yaoo"; |
| |
| -- |
| -- test split_part |
| -- |
| select split_part('','@',1) AS "empty string"; |
| |
| select split_part('','@',-1) AS "empty string"; |
| |
| select split_part('joeuser@mydatabase','',1) AS "joeuser@mydatabase"; |
| |
| select split_part('joeuser@mydatabase','',2) AS "empty string"; |
| |
| select split_part('joeuser@mydatabase','',-1) AS "joeuser@mydatabase"; |
| |
| select split_part('joeuser@mydatabase','',-2) AS "empty string"; |
| |
| select split_part('joeuser@mydatabase','@',0) AS "an error"; |
| |
| select split_part('joeuser@mydatabase','@@',1) AS "joeuser@mydatabase"; |
| |
| select split_part('joeuser@mydatabase','@@',2) AS "empty string"; |
| |
| select split_part('joeuser@mydatabase','@',1) AS "joeuser"; |
| |
| select split_part('joeuser@mydatabase','@',2) AS "mydatabase"; |
| |
| select split_part('joeuser@mydatabase','@',3) AS "empty string"; |
| |
| select split_part('@joeuser@mydatabase@','@',2) AS "joeuser"; |
| |
| select split_part('joeuser@mydatabase','@',-1) AS "mydatabase"; |
| |
| select split_part('joeuser@mydatabase','@',-2) AS "joeuser"; |
| |
| select split_part('joeuser@mydatabase','@',-3) AS "empty string"; |
| |
| select split_part('@joeuser@mydatabase@','@',-2) AS "mydatabase"; |
| |
| -- |
| -- test to_hex |
| -- |
| select to_hex(256*256*256 - 1) AS "ffffff"; |
| |
| select to_hex(256::bigint*256::bigint*256::bigint*256::bigint - 1) AS "ffffffff"; |
| |
| -- |
| -- MD5 test suite - from IETF RFC 1321 |
| -- (see: ftp://ftp.rfc-editor.org/in-notes/rfc1321.txt) |
| -- |
| select md5('') = 'd41d8cd98f00b204e9800998ecf8427e' AS "TRUE"; |
| |
| select md5('a') = '0cc175b9c0f1b6a831c399e269772661' AS "TRUE"; |
| |
| select md5('abc') = '900150983cd24fb0d6963f7d28e17f72' AS "TRUE"; |
| |
| select md5('message digest') = 'f96b697d7cb7938d525a2f31aaf161d0' AS "TRUE"; |
| |
| select md5('abcdefghijklmnopqrstuvwxyz') = 'c3fcd3d76192e4007dfb496cca67e13b' AS "TRUE"; |
| |
| select md5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') = 'd174ab98d277d9f5a5611c2c9f419d9f' AS "TRUE"; |
| |
| select md5('12345678901234567890123456789012345678901234567890123456789012345678901234567890') = '57edf4a22be3c955ac49da2e2107b67a' AS "TRUE"; |
| |
| select md5(''::bytea) = 'd41d8cd98f00b204e9800998ecf8427e' AS "TRUE"; |
| |
| select md5('a'::bytea) = '0cc175b9c0f1b6a831c399e269772661' AS "TRUE"; |
| |
| select md5('abc'::bytea) = '900150983cd24fb0d6963f7d28e17f72' AS "TRUE"; |
| |
| select md5('message digest'::bytea) = 'f96b697d7cb7938d525a2f31aaf161d0' AS "TRUE"; |
| |
| select md5('abcdefghijklmnopqrstuvwxyz'::bytea) = 'c3fcd3d76192e4007dfb496cca67e13b' AS "TRUE"; |
| |
| select md5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'::bytea) = 'd174ab98d277d9f5a5611c2c9f419d9f' AS "TRUE"; |
| |
| select md5('12345678901234567890123456789012345678901234567890123456789012345678901234567890'::bytea) = '57edf4a22be3c955ac49da2e2107b67a' AS "TRUE"; |
| |
| -- |
| -- SHA-2 |
| -- |
| SET bytea_output TO hex; |
| |
| SELECT sha224(''); |
| SELECT sha224('The quick brown fox jumps over the lazy dog.'); |
| |
| SELECT sha256(''); |
| SELECT sha256('The quick brown fox jumps over the lazy dog.'); |
| |
| SELECT sha384(''); |
| SELECT sha384('The quick brown fox jumps over the lazy dog.'); |
| |
| SELECT sha512(''); |
| SELECT sha512('The quick brown fox jumps over the lazy dog.'); |
| |
| -- |
| -- encode/decode |
| -- |
| SELECT encode('\x1234567890abcdef00', 'hex'); |
| SELECT decode('1234567890abcdef00', 'hex'); |
| SELECT encode(('\x' || repeat('1234567890abcdef0001', 7))::bytea, 'base64'); |
| SELECT decode(encode(('\x' || repeat('1234567890abcdef0001', 7))::bytea, |
| 'base64'), 'base64'); |
| SELECT encode('\x1234567890abcdef00', 'escape'); |
| SELECT decode(encode('\x1234567890abcdef00', 'escape'), 'escape'); |
| |
| -- |
| -- get_bit/set_bit etc |
| -- |
| SELECT get_bit('\x1234567890abcdef00'::bytea, 43); |
| SELECT get_bit('\x1234567890abcdef00'::bytea, 99); -- error |
| SELECT set_bit('\x1234567890abcdef00'::bytea, 43, 0); |
| SELECT set_bit('\x1234567890abcdef00'::bytea, 99, 0); -- error |
| SELECT get_byte('\x1234567890abcdef00'::bytea, 3); |
| SELECT get_byte('\x1234567890abcdef00'::bytea, 99); -- error |
| SELECT set_byte('\x1234567890abcdef00'::bytea, 7, 11); |
| SELECT set_byte('\x1234567890abcdef00'::bytea, 99, 11); -- error |
| |
| -- |
| -- test behavior of escape_string_warning and standard_conforming_strings options |
| -- |
| set escape_string_warning = off; |
| set standard_conforming_strings = off; |
| |
| show escape_string_warning; |
| show standard_conforming_strings; |
| |
| set escape_string_warning = on; |
| set standard_conforming_strings = on; |
| |
| show escape_string_warning; |
| show standard_conforming_strings; |
| |
| select 'a\bcd' as f1, 'a\b''cd' as f2, 'a\b''''cd' as f3, 'abcd\' as f4, 'ab\''cd' as f5, '\\' as f6; |
| |
| set standard_conforming_strings = off; |
| |
| select 'a\\bcd' as f1, 'a\\b\'cd' as f2, 'a\\b\'''cd' as f3, 'abcd\\' as f4, 'ab\\\'cd' as f5, '\\\\' as f6; |
| |
| set escape_string_warning = off; |
| set standard_conforming_strings = on; |
| |
| select 'a\bcd' as f1, 'a\b''cd' as f2, 'a\b''''cd' as f3, 'abcd\' as f4, 'ab\''cd' as f5, '\\' as f6; |
| |
| set standard_conforming_strings = off; |
| |
| select 'a\\bcd' as f1, 'a\\b\'cd' as f2, 'a\\b\'''cd' as f3, 'abcd\\' as f4, 'ab\\\'cd' as f5, '\\\\' as f6; |
| |
| -- |
| -- test unicode escape |
| -- |
| select E'A\u0041' as f1, E'\u0127' as f2; |
| select E'\u0000'; |
| select E'\udsfs'; |
| select E'\uD843\uE001'; |
| select E'\uDC01'; |
| select E'\uD834'; |
| |
| reset standard_conforming_strings; |
| |
| |
| -- |
| -- Additional string functions |
| -- |
| SET bytea_output TO escape; |
| |
| SELECT initcap('hi THOMAS'); |
| |
| SELECT lpad('hi', 5, 'xy'); |
| SELECT lpad('hi', 5); |
| SELECT lpad('hi', -5, 'xy'); |
| SELECT lpad('hello', 2); |
| SELECT lpad('hi', 5, ''); |
| |
| SELECT rpad('hi', 5, 'xy'); |
| SELECT rpad('hi', 5); |
| SELECT rpad('hi', -5, 'xy'); |
| SELECT rpad('hello', 2); |
| SELECT rpad('hi', 5, ''); |
| |
| SELECT ltrim('zzzytrim', 'xyz'); |
| |
| SELECT translate('', '14', 'ax'); |
| SELECT translate('12345', '14', 'ax'); |
| |
| SELECT ascii('x'); |
| SELECT ascii(''); |
| |
| SELECT chr(65); |
| SELECT chr(0); |
| |
| SELECT repeat('Pg', 4); |
| SELECT repeat('Pg', -4); |
| |
| SELECT SUBSTRING('1234567890'::bytea FROM 3) "34567890"; |
| SELECT SUBSTRING('1234567890'::bytea FROM 4 FOR 3) AS "456"; |
| SELECT SUBSTRING('string'::bytea FROM 2 FOR 2147483646) AS "tring"; |
| SELECT SUBSTRING('string'::bytea FROM -10 FOR 2147483646) AS "string"; |
| SELECT SUBSTRING('string'::bytea FROM -10 FOR -2147483646) AS "error"; |
| |
| SELECT trim(E'\\000'::bytea from E'\\000Tom\\000'::bytea); |
| SELECT trim(leading E'\\000'::bytea from E'\\000Tom\\000'::bytea); |
| SELECT trim(trailing E'\\000'::bytea from E'\\000Tom\\000'::bytea); |
| SELECT btrim(E'\\000trim\\000'::bytea, E'\\000'::bytea); |
| SELECT btrim(''::bytea, E'\\000'::bytea); |
| SELECT btrim(E'\\000trim\\000'::bytea, ''::bytea); |
| SELECT encode(overlay(E'Th\\000omas'::bytea placing E'Th\\001omas'::bytea from 2),'escape'); |
| SELECT encode(overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 8),'escape'); |
| SELECT encode(overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 5 for 3),'escape'); |
| |
| SELECT bit_count('\x1234567890'::bytea); |
| |
| SELECT unistr('\0064at\+0000610'); |
| SELECT unistr('d\u0061t\U000000610'); |
| SELECT unistr('a\\b'); |
| -- errors: |
| SELECT unistr('wrong: \db99'); |
| SELECT unistr('wrong: \db99\0061'); |
| SELECT unistr('wrong: \+00db99\+000061'); |
| SELECT unistr('wrong: \+2FFFFF'); |
| SELECT unistr('wrong: \udb99\u0061'); |
| SELECT unistr('wrong: \U0000db99\U00000061'); |
| SELECT unistr('wrong: \U002FFFFF'); |
| SELECT unistr('wrong: \xyz'); |
| |
| -- Clean up GPDB-added tables |
| DROP TABLE char_strings_tbl; |
| DROP TABLE varchar_strings_tbl; |
| DROP TABLE text_strings_tbl; |
