1-- 2-- STRINGS 3-- Test various data entry syntaxes. 4-- 5 6-- SQL string continuation syntax 7-- E021-03 character string literals 8SELECT 'first line' 9' - next line' 10 ' - third line' 11 AS "Three lines to one"; 12 13-- illegal string continuation syntax 14SELECT 'first line' 15' - next line' /* this comment is not allowed here */ 16' - third line' 17 AS "Illegal comment within continuation"; 18 19-- Unicode escapes 20SET standard_conforming_strings TO on; 21 22SELECT U&'d\0061t\+000061' AS U&"d\0061t\+000061"; 23SELECT U&'d!0061t\+000061' UESCAPE '!' AS U&"d*0061t\+000061" UESCAPE '*'; 24 25SELECT U&' \' UESCAPE '!' AS "tricky"; 26SELECT 'tricky' AS U&"\" UESCAPE '!'; 27 28SELECT U&'wrong: \061'; 29SELECT U&'wrong: \+0061'; 30SELECT U&'wrong: +0061' UESCAPE '+'; 31 32SET standard_conforming_strings TO off; 33 34SELECT U&'d\0061t\+000061' AS U&"d\0061t\+000061"; 35SELECT U&'d!0061t\+000061' UESCAPE '!' AS U&"d*0061t\+000061" UESCAPE '*'; 36 37SELECT U&' \' UESCAPE '!' AS "tricky"; 38SELECT 'tricky' AS U&"\" UESCAPE '!'; 39 40SELECT U&'wrong: \061'; 41SELECT U&'wrong: \+0061'; 42SELECT U&'wrong: +0061' UESCAPE '+'; 43 44RESET standard_conforming_strings; 45 46-- bytea 47SET bytea_output TO hex; 48SELECT E'\\xDeAdBeEf'::bytea; 49SELECT E'\\x De Ad Be Ef '::bytea; 50SELECT E'\\xDeAdBeE'::bytea; 51SELECT E'\\xDeAdBeEx'::bytea; 52SELECT E'\\xDe00BeEf'::bytea; 53SELECT E'DeAdBeEf'::bytea; 54SELECT E'De\\000dBeEf'::bytea; 55SELECT E'De\123dBeEf'::bytea; 56SELECT E'De\\123dBeEf'::bytea; 57SELECT E'De\\678dBeEf'::bytea; 58 59SET bytea_output TO escape; 60SELECT E'\\xDeAdBeEf'::bytea; 61SELECT E'\\x De Ad Be Ef '::bytea; 62SELECT E'\\xDe00BeEf'::bytea; 63SELECT E'DeAdBeEf'::bytea; 64SELECT E'De\\000dBeEf'::bytea; 65SELECT E'De\\123dBeEf'::bytea; 66 67-- 68-- test conversions between various string types 69-- E021-10 implicit casting among the character data types 70-- 71 72SELECT CAST(f1 AS text) AS "text(char)" FROM CHAR_TBL; 73 74SELECT CAST(f1 AS text) AS "text(varchar)" FROM VARCHAR_TBL; 75 76SELECT CAST(name 'namefield' AS text) AS "text(name)"; 77 78-- since this is an explicit cast, it should truncate w/o error: 79SELECT CAST(f1 AS char(10)) AS "char(text)" FROM TEXT_TBL; 80-- note: implicit-cast case is tested in char.sql 81 82SELECT CAST(f1 AS char(20)) AS "char(text)" FROM TEXT_TBL; 83 84SELECT CAST(f1 AS char(10)) AS "char(varchar)" FROM VARCHAR_TBL; 85 86SELECT CAST(name 'namefield' AS char(10)) AS "char(name)"; 87 88SELECT CAST(f1 AS varchar) AS "varchar(text)" FROM TEXT_TBL; 89 90SELECT CAST(f1 AS varchar) AS "varchar(char)" FROM CHAR_TBL; 91 92SELECT CAST(name 'namefield' AS varchar) AS "varchar(name)"; 93 94-- 95-- test SQL string functions 96-- E### and T### are feature reference numbers from SQL99 97-- 98 99-- E021-09 trim function 100SELECT TRIM(BOTH FROM ' bunch o blanks ') = 'bunch o blanks' AS "bunch o blanks"; 101 102SELECT TRIM(LEADING FROM ' bunch o blanks ') = 'bunch o blanks ' AS "bunch o blanks "; 103 104SELECT TRIM(TRAILING FROM ' bunch o blanks ') = ' bunch o blanks' AS " bunch o blanks"; 105 106SELECT TRIM(BOTH 'x' FROM 'xxxxxsome Xsxxxxx') = 'some Xs' AS "some Xs"; 107 108-- E021-06 substring expression 109SELECT SUBSTRING('1234567890' FROM 3) = '34567890' AS "34567890"; 110 111SELECT SUBSTRING('1234567890' FROM 4 FOR 3) = '456' AS "456"; 112 113-- test overflow cases 114SELECT SUBSTRING('string' FROM 2 FOR 2147483646) AS "tring"; 115SELECT SUBSTRING('string' FROM -10 FOR 2147483646) AS "string"; 116SELECT SUBSTRING('string' FROM -10 FOR -2147483646) AS "error"; 117 118-- T581 regular expression substring (with SQL's bizarre regexp syntax) 119SELECT SUBSTRING('abcdefg' FROM 'a#"(b_d)#"%' FOR '#') AS "bcd"; 120 121-- No match should return NULL 122SELECT SUBSTRING('abcdefg' FROM '#"(b_d)#"%' FOR '#') IS NULL AS "True"; 123 124-- Null inputs should return NULL 125SELECT SUBSTRING('abcdefg' FROM '(b|c)' FOR NULL) IS NULL AS "True"; 126SELECT SUBSTRING(NULL FROM '(b|c)' FOR '#') IS NULL AS "True"; 127SELECT SUBSTRING('abcdefg' FROM NULL FOR '#') IS NULL AS "True"; 128 129-- PostgreSQL extension to allow omitting the escape character; 130-- here the regexp is taken as Posix syntax 131SELECT SUBSTRING('abcdefg' FROM 'c.e') AS "cde"; 132 133-- With a parenthesized subexpression, return only what matches the subexpr 134SELECT SUBSTRING('abcdefg' FROM 'b(.*)f') AS "cde"; 135 136-- PostgreSQL extension to allow using back reference in replace string; 137SELECT regexp_replace('1112223333', E'(\\d{3})(\\d{3})(\\d{4})', E'(\\1) \\2-\\3'); 138SELECT regexp_replace('AAA BBB CCC ', E'\\s+', ' ', 'g'); 139SELECT regexp_replace('AAA', '^|$', 'Z', 'g'); 140SELECT regexp_replace('AAA aaa', 'A+', 'Z', 'gi'); 141-- invalid regexp option 142SELECT regexp_replace('AAA aaa', 'A+', 'Z', 'z'); 143 144-- set so we can tell NULL from empty string 145\pset null '\\N' 146 147-- return all matches from regexp 148SELECT regexp_matches('foobarbequebaz', $re$(bar)(beque)$re$); 149 150-- test case insensitive 151SELECT regexp_matches('foObARbEqUEbAz', $re$(bar)(beque)$re$, 'i'); 152 153-- global option - more than one match 154SELECT regexp_matches('foobarbequebazilbarfbonk', $re$(b[^b]+)(b[^b]+)$re$, 'g'); 155 156-- empty capture group (matched empty string) 157SELECT regexp_matches('foobarbequebaz', $re$(bar)(.*)(beque)$re$); 158-- no match 159SELECT regexp_matches('foobarbequebaz', $re$(bar)(.+)(beque)$re$); 160-- optional capture group did not match, null entry in array 161SELECT regexp_matches('foobarbequebaz', $re$(bar)(.+)?(beque)$re$); 162 163-- no capture groups 164SELECT regexp_matches('foobarbequebaz', $re$barbeque$re$); 165 166-- start/end-of-line matches are of zero length 167SELECT regexp_matches('foo' || chr(10) || 'bar' || chr(10) || 'bequq' || chr(10) || 'baz', '^', 'mg'); 168SELECT regexp_matches('foo' || chr(10) || 'bar' || chr(10) || 'bequq' || chr(10) || 'baz', '$', 'mg'); 169SELECT regexp_matches('1' || chr(10) || '2' || chr(10) || '3' || chr(10) || '4' || chr(10), '^.?', 'mg'); 170SELECT regexp_matches(chr(10) || '1' || chr(10) || '2' || chr(10) || '3' || chr(10) || '4' || chr(10), '.?$', 'mg'); 171SELECT regexp_matches(chr(10) || '1' || chr(10) || '2' || chr(10) || '3' || chr(10) || '4', '.?$', 'mg'); 172 173-- give me errors 174SELECT regexp_matches('foobarbequebaz', $re$(bar)(beque)$re$, 'gz'); 175SELECT regexp_matches('foobarbequebaz', $re$(barbeque$re$); 176SELECT regexp_matches('foobarbequebaz', $re$(bar)(beque){2,1}$re$); 177 178-- split string on regexp 179SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumps over the lazy dog', $re$\s+$re$) AS foo; 180SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', $re$\s+$re$); 181 182SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumps over the lazy dog', $re$\s*$re$) AS foo; 183SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', $re$\s*$re$); 184SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumps over the lazy dog', '') AS foo; 185SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', ''); 186-- case insensitive 187SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'i') AS foo; 188SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'i'); 189-- no match of pattern 190SELECT foo, length(foo) FROM regexp_split_to_table('the quick brown fox jumps over the lazy dog', 'nomatch') AS foo; 191SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', 'nomatch'); 192-- some corner cases 193SELECT regexp_split_to_array('123456','1'); 194SELECT regexp_split_to_array('123456','6'); 195SELECT regexp_split_to_array('123456','.'); 196SELECT regexp_split_to_array('123456',''); 197SELECT regexp_split_to_array('123456','(?:)'); 198SELECT regexp_split_to_array('1',''); 199-- errors 200SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'zippy') AS foo; 201SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'iz'); 202-- global option meaningless for regexp_split 203SELECT foo, length(foo) FROM regexp_split_to_table('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'g') AS foo; 204SELECT regexp_split_to_array('thE QUick bROWn FOx jUMPs ovEr The lazy dOG', 'e', 'g'); 205 206-- change NULL-display back 207\pset null '' 208 209-- E021-11 position expression 210SELECT POSITION('4' IN '1234567890') = '4' AS "4"; 211 212SELECT POSITION('5' IN '1234567890') = '5' AS "5"; 213 214-- T312 character overlay function 215SELECT OVERLAY('abcdef' PLACING '45' FROM 4) AS "abc45f"; 216 217SELECT OVERLAY('yabadoo' PLACING 'daba' FROM 5) AS "yabadaba"; 218 219SELECT OVERLAY('yabadoo' PLACING 'daba' FROM 5 FOR 0) AS "yabadabadoo"; 220 221SELECT OVERLAY('babosa' PLACING 'ubb' FROM 2 FOR 4) AS "bubba"; 222 223-- 224-- test LIKE 225-- Be sure to form every test as a LIKE/NOT LIKE pair. 226-- 227 228-- simplest examples 229-- E061-04 like predicate 230SELECT 'hawkeye' LIKE 'h%' AS "true"; 231SELECT 'hawkeye' NOT LIKE 'h%' AS "false"; 232 233SELECT 'hawkeye' LIKE 'H%' AS "false"; 234SELECT 'hawkeye' NOT LIKE 'H%' AS "true"; 235 236SELECT 'hawkeye' LIKE 'indio%' AS "false"; 237SELECT 'hawkeye' NOT LIKE 'indio%' AS "true"; 238 239SELECT 'hawkeye' LIKE 'h%eye' AS "true"; 240SELECT 'hawkeye' NOT LIKE 'h%eye' AS "false"; 241 242SELECT 'indio' LIKE '_ndio' AS "true"; 243SELECT 'indio' NOT LIKE '_ndio' AS "false"; 244 245SELECT 'indio' LIKE 'in__o' AS "true"; 246SELECT 'indio' NOT LIKE 'in__o' AS "false"; 247 248SELECT 'indio' LIKE 'in_o' AS "false"; 249SELECT 'indio' NOT LIKE 'in_o' AS "true"; 250 251-- unused escape character 252SELECT 'hawkeye' LIKE 'h%' ESCAPE '#' AS "true"; 253SELECT 'hawkeye' NOT LIKE 'h%' ESCAPE '#' AS "false"; 254 255SELECT 'indio' LIKE 'ind_o' ESCAPE '$' AS "true"; 256SELECT 'indio' NOT LIKE 'ind_o' ESCAPE '$' AS "false"; 257 258-- escape character 259-- E061-05 like predicate with escape clause 260SELECT 'h%' LIKE 'h#%' ESCAPE '#' AS "true"; 261SELECT 'h%' NOT LIKE 'h#%' ESCAPE '#' AS "false"; 262 263SELECT 'h%wkeye' LIKE 'h#%' ESCAPE '#' AS "false"; 264SELECT 'h%wkeye' NOT LIKE 'h#%' ESCAPE '#' AS "true"; 265 266SELECT 'h%wkeye' LIKE 'h#%%' ESCAPE '#' AS "true"; 267SELECT 'h%wkeye' NOT LIKE 'h#%%' ESCAPE '#' AS "false"; 268 269SELECT 'h%awkeye' LIKE 'h#%a%k%e' ESCAPE '#' AS "true"; 270SELECT 'h%awkeye' NOT LIKE 'h#%a%k%e' ESCAPE '#' AS "false"; 271 272SELECT 'indio' LIKE '_ndio' ESCAPE '$' AS "true"; 273SELECT 'indio' NOT LIKE '_ndio' ESCAPE '$' AS "false"; 274 275SELECT 'i_dio' LIKE 'i$_d_o' ESCAPE '$' AS "true"; 276SELECT 'i_dio' NOT LIKE 'i$_d_o' ESCAPE '$' AS "false"; 277 278SELECT 'i_dio' LIKE 'i$_nd_o' ESCAPE '$' AS "false"; 279SELECT 'i_dio' NOT LIKE 'i$_nd_o' ESCAPE '$' AS "true"; 280 281SELECT 'i_dio' LIKE 'i$_d%o' ESCAPE '$' AS "true"; 282SELECT 'i_dio' NOT LIKE 'i$_d%o' ESCAPE '$' AS "false"; 283 284-- escape character same as pattern character 285SELECT 'maca' LIKE 'm%aca' ESCAPE '%' AS "true"; 286SELECT 'maca' NOT LIKE 'm%aca' ESCAPE '%' AS "false"; 287 288SELECT 'ma%a' LIKE 'm%a%%a' ESCAPE '%' AS "true"; 289SELECT 'ma%a' NOT LIKE 'm%a%%a' ESCAPE '%' AS "false"; 290 291SELECT 'bear' LIKE 'b_ear' ESCAPE '_' AS "true"; 292SELECT 'bear' NOT LIKE 'b_ear' ESCAPE '_' AS "false"; 293 294SELECT 'be_r' LIKE 'b_e__r' ESCAPE '_' AS "true"; 295SELECT 'be_r' NOT LIKE 'b_e__r' ESCAPE '_' AS "false"; 296 297SELECT 'be_r' LIKE '__e__r' ESCAPE '_' AS "false"; 298SELECT 'be_r' NOT LIKE '__e__r' ESCAPE '_' AS "true"; 299 300 301-- 302-- test ILIKE (case-insensitive LIKE) 303-- Be sure to form every test as an ILIKE/NOT ILIKE pair. 304-- 305 306SELECT 'hawkeye' ILIKE 'h%' AS "true"; 307SELECT 'hawkeye' NOT ILIKE 'h%' AS "false"; 308 309SELECT 'hawkeye' ILIKE 'H%' AS "true"; 310SELECT 'hawkeye' NOT ILIKE 'H%' AS "false"; 311 312SELECT 'hawkeye' ILIKE 'H%Eye' AS "true"; 313SELECT 'hawkeye' NOT ILIKE 'H%Eye' AS "false"; 314 315SELECT 'Hawkeye' ILIKE 'h%' AS "true"; 316SELECT 'Hawkeye' NOT ILIKE 'h%' AS "false"; 317 318-- 319-- test %/_ combination cases, cf bugs #4821 and #5478 320-- 321 322SELECT 'foo' LIKE '_%' as t, 'f' LIKE '_%' as t, '' LIKE '_%' as f; 323SELECT 'foo' LIKE '%_' as t, 'f' LIKE '%_' as t, '' LIKE '%_' as f; 324 325SELECT 'foo' LIKE '__%' as t, 'foo' LIKE '___%' as t, 'foo' LIKE '____%' as f; 326SELECT 'foo' LIKE '%__' as t, 'foo' LIKE '%___' as t, 'foo' LIKE '%____' as f; 327 328SELECT 'jack' LIKE '%____%' AS t; 329 330 331-- 332-- test implicit type conversion 333-- 334 335-- E021-07 character concatenation 336SELECT 'unknown' || ' and unknown' AS "Concat unknown types"; 337 338SELECT text 'text' || ' and unknown' AS "Concat text to unknown type"; 339 340SELECT char(20) 'characters' || ' and text' AS "Concat char to unknown type"; 341 342SELECT text 'text' || char(20) ' and characters' AS "Concat text to char"; 343 344SELECT text 'text' || varchar ' and varchar' AS "Concat text to varchar"; 345 346-- 347-- test substr with toasted text values 348-- 349CREATE TABLE toasttest(f1 text); 350 351insert into toasttest values(repeat('1234567890',10000)); 352insert into toasttest values(repeat('1234567890',10000)); 353 354-- 355-- Ensure that some values are uncompressed, to test the faster substring 356-- operation used in that case 357-- 358alter table toasttest alter column f1 set storage external; 359insert into toasttest values(repeat('1234567890',10000)); 360insert into toasttest values(repeat('1234567890',10000)); 361 362-- If the starting position is zero or less, then return from the start of the string 363-- adjusting the length to be consistent with the "negative start" per SQL. 364SELECT substr(f1, -1, 5) from toasttest; 365 366-- If the length is less than zero, an ERROR is thrown. 367SELECT substr(f1, 5, -1) from toasttest; 368 369-- If no third argument (length) is provided, the length to the end of the 370-- string is assumed. 371SELECT substr(f1, 99995) from toasttest; 372 373-- If start plus length is > string length, the result is truncated to 374-- string length 375SELECT substr(f1, 99995, 10) from toasttest; 376 377TRUNCATE TABLE toasttest; 378INSERT INTO toasttest values (repeat('1234567890',300)); 379INSERT INTO toasttest values (repeat('1234567890',300)); 380INSERT INTO toasttest values (repeat('1234567890',300)); 381INSERT INTO toasttest values (repeat('1234567890',300)); 382-- expect >0 blocks 383select 0 = pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks; 384 385TRUNCATE TABLE toasttest; 386ALTER TABLE toasttest set (toast_tuple_target = 4080); 387INSERT INTO toasttest values (repeat('1234567890',300)); 388INSERT INTO toasttest values (repeat('1234567890',300)); 389INSERT INTO toasttest values (repeat('1234567890',300)); 390INSERT INTO toasttest values (repeat('1234567890',300)); 391-- expect 0 blocks 392select 0 = pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks; 393 394DROP TABLE toasttest; 395 396-- 397-- test substr with toasted bytea values 398-- 399CREATE TABLE toasttest(f1 bytea); 400 401insert into toasttest values(decode(repeat('1234567890',10000),'escape')); 402insert into toasttest values(decode(repeat('1234567890',10000),'escape')); 403 404-- 405-- Ensure that some values are uncompressed, to test the faster substring 406-- operation used in that case 407-- 408alter table toasttest alter column f1 set storage external; 409insert into toasttest values(decode(repeat('1234567890',10000),'escape')); 410insert into toasttest values(decode(repeat('1234567890',10000),'escape')); 411 412-- If the starting position is zero or less, then return from the start of the string 413-- adjusting the length to be consistent with the "negative start" per SQL. 414SELECT substr(f1, -1, 5) from toasttest; 415 416-- If the length is less than zero, an ERROR is thrown. 417SELECT substr(f1, 5, -1) from toasttest; 418 419-- If no third argument (length) is provided, the length to the end of the 420-- string is assumed. 421SELECT substr(f1, 99995) from toasttest; 422 423-- If start plus length is > string length, the result is truncated to 424-- string length 425SELECT substr(f1, 99995, 10) from toasttest; 426 427DROP TABLE toasttest; 428 429-- test internally compressing datums 430 431-- this tests compressing a datum to a very small size which exercises a 432-- corner case in packed-varlena handling: even though small, the compressed 433-- datum must be given a 4-byte header because there are no bits to indicate 434-- compression in a 1-byte header 435 436CREATE TABLE toasttest (c char(4096)); 437INSERT INTO toasttest VALUES('x'); 438SELECT length(c), c::text FROM toasttest; 439SELECT c FROM toasttest; 440DROP TABLE toasttest; 441 442-- 443-- test length 444-- 445 446SELECT length('abcdef') AS "length_6"; 447 448-- 449-- test strpos 450-- 451 452SELECT strpos('abcdef', 'cd') AS "pos_3"; 453 454SELECT strpos('abcdef', 'xy') AS "pos_0"; 455 456-- 457-- test replace 458-- 459SELECT replace('abcdef', 'de', '45') AS "abc45f"; 460 461SELECT replace('yabadabadoo', 'ba', '123') AS "ya123da123doo"; 462 463SELECT replace('yabadoo', 'bad', '') AS "yaoo"; 464 465-- 466-- test split_part 467-- 468select split_part('joeuser@mydatabase','@',0) AS "an error"; 469 470select split_part('joeuser@mydatabase','@',1) AS "joeuser"; 471 472select split_part('joeuser@mydatabase','@',2) AS "mydatabase"; 473 474select split_part('joeuser@mydatabase','@',3) AS "empty string"; 475 476select split_part('@joeuser@mydatabase@','@',2) AS "joeuser"; 477 478-- 479-- test to_hex 480-- 481select to_hex(256*256*256 - 1) AS "ffffff"; 482 483select to_hex(256::bigint*256::bigint*256::bigint*256::bigint - 1) AS "ffffffff"; 484 485-- 486-- MD5 test suite - from IETF RFC 1321 487-- (see: ftp://ftp.rfc-editor.org/in-notes/rfc1321.txt) 488-- 489select md5('') = 'd41d8cd98f00b204e9800998ecf8427e' AS "TRUE"; 490 491select md5('a') = '0cc175b9c0f1b6a831c399e269772661' AS "TRUE"; 492 493select md5('abc') = '900150983cd24fb0d6963f7d28e17f72' AS "TRUE"; 494 495select md5('message digest') = 'f96b697d7cb7938d525a2f31aaf161d0' AS "TRUE"; 496 497select md5('abcdefghijklmnopqrstuvwxyz') = 'c3fcd3d76192e4007dfb496cca67e13b' AS "TRUE"; 498 499select md5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') = 'd174ab98d277d9f5a5611c2c9f419d9f' AS "TRUE"; 500 501select md5('12345678901234567890123456789012345678901234567890123456789012345678901234567890') = '57edf4a22be3c955ac49da2e2107b67a' AS "TRUE"; 502 503select md5(''::bytea) = 'd41d8cd98f00b204e9800998ecf8427e' AS "TRUE"; 504 505select md5('a'::bytea) = '0cc175b9c0f1b6a831c399e269772661' AS "TRUE"; 506 507select md5('abc'::bytea) = '900150983cd24fb0d6963f7d28e17f72' AS "TRUE"; 508 509select md5('message digest'::bytea) = 'f96b697d7cb7938d525a2f31aaf161d0' AS "TRUE"; 510 511select md5('abcdefghijklmnopqrstuvwxyz'::bytea) = 'c3fcd3d76192e4007dfb496cca67e13b' AS "TRUE"; 512 513select md5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'::bytea) = 'd174ab98d277d9f5a5611c2c9f419d9f' AS "TRUE"; 514 515select md5('12345678901234567890123456789012345678901234567890123456789012345678901234567890'::bytea) = '57edf4a22be3c955ac49da2e2107b67a' AS "TRUE"; 516 517-- 518-- SHA-2 519-- 520SET bytea_output TO hex; 521 522SELECT sha224(''); 523SELECT sha224('The quick brown fox jumps over the lazy dog.'); 524 525SELECT sha256(''); 526SELECT sha256('The quick brown fox jumps over the lazy dog.'); 527 528SELECT sha384(''); 529SELECT sha384('The quick brown fox jumps over the lazy dog.'); 530 531SELECT sha512(''); 532SELECT sha512('The quick brown fox jumps over the lazy dog.'); 533 534-- 535-- encode/decode 536-- 537SELECT encode('\x1234567890abcdef00', 'hex'); 538SELECT decode('1234567890abcdef00', 'hex'); 539SELECT encode(('\x' || repeat('1234567890abcdef0001', 7))::bytea, 'base64'); 540SELECT decode(encode(('\x' || repeat('1234567890abcdef0001', 7))::bytea, 541 'base64'), 'base64'); 542SELECT encode('\x1234567890abcdef00', 'escape'); 543SELECT decode(encode('\x1234567890abcdef00', 'escape'), 'escape'); 544 545-- 546-- get_bit/set_bit etc 547-- 548SELECT get_bit('\x1234567890abcdef00'::bytea, 43); 549SELECT get_bit('\x1234567890abcdef00'::bytea, 99); -- error 550SELECT set_bit('\x1234567890abcdef00'::bytea, 43, 0); 551SELECT set_bit('\x1234567890abcdef00'::bytea, 99, 0); -- error 552SELECT get_byte('\x1234567890abcdef00'::bytea, 3); 553SELECT get_byte('\x1234567890abcdef00'::bytea, 99); -- error 554SELECT set_byte('\x1234567890abcdef00'::bytea, 7, 11); 555SELECT set_byte('\x1234567890abcdef00'::bytea, 99, 11); -- error 556 557-- 558-- test behavior of escape_string_warning and standard_conforming_strings options 559-- 560set escape_string_warning = off; 561set standard_conforming_strings = off; 562 563show escape_string_warning; 564show standard_conforming_strings; 565 566set escape_string_warning = on; 567set standard_conforming_strings = on; 568 569show escape_string_warning; 570show standard_conforming_strings; 571 572select 'a\bcd' as f1, 'a\b''cd' as f2, 'a\b''''cd' as f3, 'abcd\' as f4, 'ab\''cd' as f5, '\\' as f6; 573 574set standard_conforming_strings = off; 575 576select 'a\\bcd' as f1, 'a\\b\'cd' as f2, 'a\\b\'''cd' as f3, 'abcd\\' as f4, 'ab\\\'cd' as f5, '\\\\' as f6; 577 578set escape_string_warning = off; 579set standard_conforming_strings = on; 580 581select 'a\bcd' as f1, 'a\b''cd' as f2, 'a\b''''cd' as f3, 'abcd\' as f4, 'ab\''cd' as f5, '\\' as f6; 582 583set standard_conforming_strings = off; 584 585select 'a\\bcd' as f1, 'a\\b\'cd' as f2, 'a\\b\'''cd' as f3, 'abcd\\' as f4, 'ab\\\'cd' as f5, '\\\\' as f6; 586 587 588-- 589-- Additional string functions 590-- 591SET bytea_output TO escape; 592 593SELECT initcap('hi THOMAS'); 594 595SELECT lpad('hi', 5, 'xy'); 596SELECT lpad('hi', 5); 597SELECT lpad('hi', -5, 'xy'); 598SELECT lpad('hello', 2); 599SELECT lpad('hi', 5, ''); 600 601SELECT rpad('hi', 5, 'xy'); 602SELECT rpad('hi', 5); 603SELECT rpad('hi', -5, 'xy'); 604SELECT rpad('hello', 2); 605SELECT rpad('hi', 5, ''); 606 607SELECT ltrim('zzzytrim', 'xyz'); 608 609SELECT translate('', '14', 'ax'); 610SELECT translate('12345', '14', 'ax'); 611 612SELECT ascii('x'); 613SELECT ascii(''); 614 615SELECT chr(65); 616SELECT chr(0); 617 618SELECT repeat('Pg', 4); 619SELECT repeat('Pg', -4); 620 621SELECT SUBSTRING('1234567890'::bytea FROM 3) "34567890"; 622SELECT SUBSTRING('1234567890'::bytea FROM 4 FOR 3) AS "456"; 623SELECT SUBSTRING('string'::bytea FROM 2 FOR 2147483646) AS "tring"; 624SELECT SUBSTRING('string'::bytea FROM -10 FOR 2147483646) AS "string"; 625SELECT SUBSTRING('string'::bytea FROM -10 FOR -2147483646) AS "error"; 626 627SELECT trim(E'\\000'::bytea from E'\\000Tom\\000'::bytea); 628SELECT btrim(E'\\000trim\\000'::bytea, E'\\000'::bytea); 629SELECT btrim(''::bytea, E'\\000'::bytea); 630SELECT btrim(E'\\000trim\\000'::bytea, ''::bytea); 631SELECT encode(overlay(E'Th\\000omas'::bytea placing E'Th\\001omas'::bytea from 2),'escape'); 632SELECT encode(overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 8),'escape'); 633SELECT encode(overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 5 for 3),'escape'); 634