| -- |
| -- 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'); |
| |
| -- SQL92 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"; |
| |
| -- |
| -- 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 ORDER BY 1; |
| |
| SELECT CAST(f1 AS text) AS "text(varchar)" FROM VARCHAR_STRINGS_TBL ORDER BY 1; |
| |
| 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 ORDER BY 1; |
| -- note: implicit-cast case is tested in char.sql |
| |
| SELECT CAST(f1 AS char(20)) AS "char(text)" FROM TEXT_STRINGS_TBL ORDER BY 1; |
| |
| SELECT CAST(f1 AS char(10)) AS "char(varchar)" FROM VARCHAR_STRINGS_TBL ORDER BY 1; |
| |
| SELECT CAST(name 'namefield' AS char(10)) AS "char(name)"; |
| |
| SELECT CAST(f1 AS varchar) AS "varchar(text)" FROM TEXT_STRINGS_TBL ORDER BY 1; |
| |
| SELECT CAST(f1 AS varchar) AS "varchar(char)" FROM CHAR_STRINGS_TBL ORDER BY 1; |
| |
| SELECT CAST(name 'namefield' AS varchar) AS "varchar(name)"; |
| |
| -- |
| -- test SQL92 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"; |
| |
| -- T581 regular expression substring (with SQL99's bizarre regexp syntax) |
| SELECT SUBSTRING('abcdefg' FROM 'a#"(b_d)#"%' FOR '#') AS "bcd"; |
| |
| -- No match should return NULL |
| SELECT SUBSTRING('abcdefg' FROM '#"(b_d)#"%' FOR '#') IS NULL AS "True"; |
| |
| -- Null inputs should return NULL |
| SELECT SUBSTRING('abcdefg' FROM '(b|c)' FOR NULL) IS NULL AS "True"; |
| SELECT SUBSTRING(NULL FROM '(b|c)' FOR '#') IS NULL AS "True"; |
| SELECT SUBSTRING('abcdefg' FROM NULL FOR '#') IS NULL AS "True"; |
| |
| -- PostgreSQL extension to allow omitting the escape character; |
| -- here the regexp is taken as Posix syntax |
| 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"; |
| |
| -- PostgreSQL extension to allow using back reference in replace string; |
| 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$re$); |
| |
| -- give me errors |
| SELECT regexp_matches('foobarbequebaz', $re$(bar)(beque)$re$, 'zipper'); |
| 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 jumped over the lazy dog', $re$\s+$re$) AS foo; |
| SELECT regexp_split_to_array('the quick brown fox jumped over the lazy dog', $re$\s+$re$); |
| |
| SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumped over the lazy dog', $re$\s*$re$) AS foo; |
| SELECT regexp_split_to_array('the quick brown fox jumped over the lazy dog', $re$\s*$re$); |
| SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumped over the lazy dog', '') AS foo; |
| SELECT regexp_split_to_array('the quick brown fox jumped over the lazy dog', ''); |
| -- case insensitive |
| SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPed ovEr THE lazy dOG', 'e', 'i') AS foo; |
| SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPed ovEr THE lazy dOG', 'e', 'i'); |
| -- no match of pattern |
| SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumped over the lazy dog', 'nomatch') AS foo; |
| SELECT regexp_split_to_array('the quick brown fox jumped over the lazy dog', 'nomatch'); |
| -- errors |
| SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPed ovEr THE lazy dOG', 'e', 'zippy') AS foo; |
| SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPed ovEr THE lazy dOG', 'e', 'zippy'); |
| -- global option meaningless for regexp_split |
| SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPed ovEr THE lazy dOG', 'e', 'g') AS foo; |
| SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPed 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"; |
| |
| -- 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"; |
| |
| -- 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"; |
| |
| -- |
| -- 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 "unknown" from sub queries - MPP-2510 |
| select foo || 'bar'::text from (select 'bar' as foo) a; |
| select foo || 'bar'::text from (select 'bar'::text as foo) a; |
| select * from ( select 'a' as a) x join (select 'b' as b) y on a=b; |
| |
| -- Test "unknown" with typmod MPP-2658 |
| create table unknown_test (v varchar(20), n numeric(20, 2), t timestamp(2)); |
| insert into unknown_test select '100', '123.23', '2008-01-01 11:11:11'; |
| select 'foo'::varchar(10) || bar from (select 'bar' as bar) moo; |
| select '123'::numeric(4,1) + bar from (select '123' as bar) baz; |
| drop table unknown_test; |
| |
| -- Test nested "unknown"s from MPP-2689 |
| select 'foo'::text || foo from ( select foo from (select 4.5, foo from ( select |
| 1, 'foo' as foo) a ) b ) c; |
| select 'foo'::text || foo from ( select foo from |
| (select foo || bar as foo from ( select 'bar' as bar, 'foo' as foo) a ) b ) c; |
| create domain u_d as text; |
| prepare p1 as select $1::u_d || foo from (select 'foo' as foo) a; |
| prepare p2 as select 'foo' || foo |
| from (select $1::u_d || bar as foo from (select 'bar' as bar) a ) b; |
| |
| select 'a' as a, 'b' as b, 'c' as c, 1 as d union select * from (select 'a' as a, 'b' as b, 'c' as c, 1 as d)d; |
| select * from (select 'a' as a, 'b' as b, 'c' as c, 1 as d)d union select 'a' as a, 'b' as b, 'c' as c, 1 as d; |
| |
| -- Make sure we can convert unknown to other useful types (MPP-4298) |
| create table t as select j as a, 'abc' as i from |
| generate_series(1, 10) j; |
| select * from t order by a; |
| alter table t alter i type int; -- should fail |
| alter table t alter i type text; -- should work |
| select * from t order by a; |
| drop table t; |
| |
| -- |
| -- 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 SQL92. |
| 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 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 SQL92. |
| 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 |
| |
| -- note this tests compressing a datum to a very small size which tests a |
| -- particular case in the packed varlena where very small compressed datums |
| -- 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(2048)); |
| 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"; |
| |
| -- |
| -- 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('joeuser@mydatabase','@',0) AS "an error"; |
| |
| 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"; |
| |
| -- |
| -- 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"; |
| |
| -- |
| -- 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'; |
