981 lines
19 KiB
Plaintext
981 lines
19 KiB
Plaintext
--
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-- STRINGS
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-- Test various data entry syntaxes.
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--
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-- SQL92 string continuation syntax
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-- E021-03 character string literals
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SELECT 'first line'
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' - next line'
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' - third line'
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AS "Three lines to one";
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Three lines to one
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-------------------------------------
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first line - next line - third line
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(1 row)
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-- illegal string continuation syntax
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SELECT 'first line'
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' - next line' /* this comment is not allowed here */
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' - third line'
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AS "Illegal comment within continuation";
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ERROR: syntax error at or near "' - third line'" at character 75
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LINE 3: ' - third line'
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^
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--
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-- test conversions between various string types
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-- E021-10 implicit casting among the character data types
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--
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SELECT CAST(f1 AS text) AS "text(char)" FROM CHAR_TBL;
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text(char)
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------------
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a
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ab
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abcd
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abcd
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(4 rows)
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SELECT CAST(f1 AS text) AS "text(varchar)" FROM VARCHAR_TBL;
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text(varchar)
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---------------
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a
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ab
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abcd
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abcd
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(4 rows)
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SELECT CAST(name 'namefield' AS text) AS "text(name)";
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text(name)
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------------
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namefield
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(1 row)
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-- since this is an explicit cast, it should truncate w/o error:
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SELECT CAST(f1 AS char(10)) AS "char(text)" FROM TEXT_TBL;
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char(text)
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------------
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doh!
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hi de ho n
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(2 rows)
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-- note: implicit-cast case is tested in char.sql
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SELECT CAST(f1 AS char(20)) AS "char(text)" FROM TEXT_TBL;
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char(text)
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----------------------
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doh!
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hi de ho neighbor
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(2 rows)
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SELECT CAST(f1 AS char(10)) AS "char(varchar)" FROM VARCHAR_TBL;
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char(varchar)
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---------------
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a
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ab
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abcd
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abcd
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(4 rows)
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SELECT CAST(name 'namefield' AS char(10)) AS "char(name)";
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char(name)
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------------
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namefield
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(1 row)
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SELECT CAST(f1 AS varchar) AS "varchar(text)" FROM TEXT_TBL;
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varchar(text)
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-------------------
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doh!
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hi de ho neighbor
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(2 rows)
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SELECT CAST(f1 AS varchar) AS "varchar(char)" FROM CHAR_TBL;
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varchar(char)
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---------------
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a
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ab
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abcd
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abcd
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(4 rows)
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SELECT CAST(name 'namefield' AS varchar) AS "varchar(name)";
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varchar(name)
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---------------
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namefield
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(1 row)
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--
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-- test SQL92 string functions
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-- E### and T### are feature reference numbers from SQL99
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--
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-- E021-09 trim function
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SELECT TRIM(BOTH FROM ' bunch o blanks ') = 'bunch o blanks' AS "bunch o blanks";
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bunch o blanks
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----------------
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t
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(1 row)
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SELECT TRIM(LEADING FROM ' bunch o blanks ') = 'bunch o blanks ' AS "bunch o blanks ";
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bunch o blanks
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------------------
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t
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(1 row)
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SELECT TRIM(TRAILING FROM ' bunch o blanks ') = ' bunch o blanks' AS " bunch o blanks";
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bunch o blanks
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------------------
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t
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(1 row)
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SELECT TRIM(BOTH 'x' FROM 'xxxxxsome Xsxxxxx') = 'some Xs' AS "some Xs";
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some Xs
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---------
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t
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(1 row)
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-- E021-06 substring expression
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SELECT SUBSTRING('1234567890' FROM 3) = '34567890' AS "34567890";
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34567890
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----------
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t
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(1 row)
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SELECT SUBSTRING('1234567890' FROM 4 FOR 3) = '456' AS "456";
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456
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-----
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t
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(1 row)
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-- T581 regular expression substring (with SQL99's bizarre regexp syntax)
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SELECT SUBSTRING('abcdefg' FROM 'a#"(b_d)#"%' FOR '#') AS "bcd";
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bcd
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-----
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bcd
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(1 row)
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-- No match should return NULL
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SELECT SUBSTRING('abcdefg' FROM '#"(b_d)#"%' FOR '#') IS NULL AS "True";
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True
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------
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t
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(1 row)
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-- Null inputs should return NULL
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SELECT SUBSTRING('abcdefg' FROM '(b|c)' FOR NULL) IS NULL AS "True";
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True
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------
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t
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(1 row)
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SELECT SUBSTRING(NULL FROM '(b|c)' FOR '#') IS NULL AS "True";
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True
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------
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t
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(1 row)
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SELECT SUBSTRING('abcdefg' FROM NULL FOR '#') IS NULL AS "True";
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True
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------
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t
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(1 row)
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-- PostgreSQL extension to allow omitting the escape character;
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-- here the regexp is taken as Posix syntax
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SELECT SUBSTRING('abcdefg' FROM 'c.e') AS "cde";
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cde
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-----
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cde
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(1 row)
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-- With a parenthesized subexpression, return only what matches the subexpr
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SELECT SUBSTRING('abcdefg' FROM 'b(.*)f') AS "cde";
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cde
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-----
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cde
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(1 row)
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-- PostgreSQL extension to allow using back reference in replace string;
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SELECT regexp_replace('1112223333', E'(\\d{3})(\\d{3})(\\d{4})', E'(\\1) \\2-\\3');
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regexp_replace
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----------------
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(111) 222-3333
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(1 row)
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SELECT regexp_replace('AAA BBB CCC ', E'\\s+', ' ', 'g');
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regexp_replace
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----------------
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AAA BBB CCC
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(1 row)
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SELECT regexp_replace('AAA', '^|$', 'Z', 'g');
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regexp_replace
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----------------
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ZAAAZ
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(1 row)
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SELECT regexp_replace('AAA aaa', 'A+', 'Z', 'gi');
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regexp_replace
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----------------
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Z Z
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(1 row)
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-- invalid option of REGEXP_REPLACE
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SELECT regexp_replace('AAA aaa', 'A+', 'Z', 'z');
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ERROR: invalid option of regexp_replace: z
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-- E021-11 position expression
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SELECT POSITION('4' IN '1234567890') = '4' AS "4";
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4
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---
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t
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(1 row)
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SELECT POSITION(5 IN '1234567890') = '5' AS "5";
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5
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---
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t
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(1 row)
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-- T312 character overlay function
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SELECT OVERLAY('abcdef' PLACING '45' FROM 4) AS "abc45f";
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abc45f
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--------
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abc45f
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(1 row)
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SELECT OVERLAY('yabadoo' PLACING 'daba' FROM 5) AS "yabadaba";
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yabadaba
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----------
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yabadaba
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(1 row)
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SELECT OVERLAY('yabadoo' PLACING 'daba' FROM 5 FOR 0) AS "yabadabadoo";
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yabadabadoo
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-------------
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yabadabadoo
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(1 row)
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SELECT OVERLAY('babosa' PLACING 'ubb' FROM 2 FOR 4) AS "bubba";
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bubba
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-------
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bubba
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(1 row)
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--
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-- test LIKE
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-- Be sure to form every test as a LIKE/NOT LIKE pair.
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--
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-- simplest examples
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-- E061-04 like predicate
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SELECT 'hawkeye' LIKE 'h%' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'hawkeye' NOT LIKE 'h%' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'hawkeye' LIKE 'H%' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'hawkeye' NOT LIKE 'H%' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'hawkeye' LIKE 'indio%' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'hawkeye' NOT LIKE 'indio%' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'hawkeye' LIKE 'h%eye' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'hawkeye' NOT LIKE 'h%eye' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'indio' LIKE '_ndio' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'indio' NOT LIKE '_ndio' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'indio' LIKE 'in__o' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'indio' NOT LIKE 'in__o' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'indio' LIKE 'in_o' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'indio' NOT LIKE 'in_o' AS "true";
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true
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------
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t
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(1 row)
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-- unused escape character
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SELECT 'hawkeye' LIKE 'h%' ESCAPE '#' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'hawkeye' NOT LIKE 'h%' ESCAPE '#' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'indio' LIKE 'ind_o' ESCAPE '$' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'indio' NOT LIKE 'ind_o' ESCAPE '$' AS "false";
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false
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-------
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f
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(1 row)
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-- escape character
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-- E061-05 like predicate with escape clause
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SELECT 'h%' LIKE 'h#%' ESCAPE '#' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'h%' NOT LIKE 'h#%' ESCAPE '#' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'h%wkeye' LIKE 'h#%' ESCAPE '#' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'h%wkeye' NOT LIKE 'h#%' ESCAPE '#' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'h%wkeye' LIKE 'h#%%' ESCAPE '#' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'h%wkeye' NOT LIKE 'h#%%' ESCAPE '#' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'h%awkeye' LIKE 'h#%a%k%e' ESCAPE '#' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'h%awkeye' NOT LIKE 'h#%a%k%e' ESCAPE '#' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'indio' LIKE '_ndio' ESCAPE '$' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'indio' NOT LIKE '_ndio' ESCAPE '$' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'i_dio' LIKE 'i$_d_o' ESCAPE '$' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'i_dio' NOT LIKE 'i$_d_o' ESCAPE '$' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'i_dio' LIKE 'i$_nd_o' ESCAPE '$' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'i_dio' NOT LIKE 'i$_nd_o' ESCAPE '$' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'i_dio' LIKE 'i$_d%o' ESCAPE '$' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'i_dio' NOT LIKE 'i$_d%o' ESCAPE '$' AS "false";
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false
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-------
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f
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(1 row)
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-- escape character same as pattern character
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SELECT 'maca' LIKE 'm%aca' ESCAPE '%' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'maca' NOT LIKE 'm%aca' ESCAPE '%' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'ma%a' LIKE 'm%a%%a' ESCAPE '%' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'ma%a' NOT LIKE 'm%a%%a' ESCAPE '%' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'bear' LIKE 'b_ear' ESCAPE '_' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'bear' NOT LIKE 'b_ear' ESCAPE '_' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'be_r' LIKE 'b_e__r' ESCAPE '_' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'be_r' NOT LIKE 'b_e__r' ESCAPE '_' AS "false";
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false
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-------
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|
f
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(1 row)
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SELECT 'be_r' LIKE '__e__r' ESCAPE '_' AS "false";
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false
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-------
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|
f
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(1 row)
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SELECT 'be_r' NOT LIKE '__e__r' ESCAPE '_' AS "true";
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true
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------
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t
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(1 row)
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--
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-- test ILIKE (case-insensitive LIKE)
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-- Be sure to form every test as an ILIKE/NOT ILIKE pair.
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--
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SELECT 'hawkeye' ILIKE 'h%' AS "true";
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true
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------
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t
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(1 row)
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SELECT 'hawkeye' NOT ILIKE 'h%' AS "false";
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false
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-------
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f
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(1 row)
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SELECT 'hawkeye' ILIKE 'H%' AS "true";
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true
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------
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t
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(1 row)
|
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SELECT 'hawkeye' NOT ILIKE 'H%' AS "false";
|
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false
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-------
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f
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(1 row)
|
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|
SELECT 'hawkeye' ILIKE 'H%Eye' AS "true";
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true
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------
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|
t
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(1 row)
|
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|
SELECT 'hawkeye' NOT ILIKE 'H%Eye' AS "false";
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false
|
|
-------
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|
f
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|
(1 row)
|
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|
SELECT 'Hawkeye' ILIKE 'h%' AS "true";
|
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true
|
|
------
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|
t
|
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(1 row)
|
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|
SELECT 'Hawkeye' NOT ILIKE 'h%' AS "false";
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false
|
|
-------
|
|
f
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(1 row)
|
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|
|
--
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-- test implicit type conversion
|
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--
|
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-- E021-07 character concatenation
|
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SELECT 'unknown' || ' and unknown' AS "Concat unknown types";
|
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Concat unknown types
|
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----------------------
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unknown and unknown
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|
(1 row)
|
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|
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SELECT text 'text' || ' and unknown' AS "Concat text to unknown type";
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Concat text to unknown type
|
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-----------------------------
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text and unknown
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(1 row)
|
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|
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SELECT char(20) 'characters' || ' and text' AS "Concat char to unknown type";
|
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Concat char to unknown type
|
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-----------------------------
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characters and text
|
|
(1 row)
|
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|
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SELECT text 'text' || char(20) ' and characters' AS "Concat text to char";
|
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Concat text to char
|
|
---------------------
|
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text and characters
|
|
(1 row)
|
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|
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SELECT text 'text' || varchar ' and varchar' AS "Concat text to varchar";
|
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Concat text to varchar
|
|
------------------------
|
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text and varchar
|
|
(1 row)
|
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|
|
--
|
|
-- 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;
|
|
substr
|
|
--------
|
|
123
|
|
123
|
|
123
|
|
123
|
|
(4 rows)
|
|
|
|
-- If the length is less than zero, an ERROR is thrown.
|
|
SELECT substr(f1, 5, -1) from toasttest;
|
|
ERROR: negative substring length not allowed
|
|
-- If no third argument (length) is provided, the length to the end of the
|
|
-- string is assumed.
|
|
SELECT substr(f1, 99995) from toasttest;
|
|
substr
|
|
--------
|
|
567890
|
|
567890
|
|
567890
|
|
567890
|
|
(4 rows)
|
|
|
|
-- If start plus length is > string length, the result is truncated to
|
|
-- string length
|
|
SELECT substr(f1, 99995, 10) from toasttest;
|
|
substr
|
|
--------
|
|
567890
|
|
567890
|
|
567890
|
|
567890
|
|
(4 rows)
|
|
|
|
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(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(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;
|
|
substr
|
|
--------
|
|
123
|
|
123
|
|
123
|
|
123
|
|
(4 rows)
|
|
|
|
-- If the length is less than zero, an ERROR is thrown.
|
|
SELECT substr(f1, 5, -1) from toasttest;
|
|
ERROR: negative substring length not allowed
|
|
-- If no third argument (length) is provided, the length to the end of the
|
|
-- string is assumed.
|
|
SELECT substr(f1, 99995) from toasttest;
|
|
substr
|
|
--------
|
|
567890
|
|
567890
|
|
567890
|
|
567890
|
|
(4 rows)
|
|
|
|
-- If start plus length is > string length, the result is truncated to
|
|
-- string length
|
|
SELECT substr(f1, 99995, 10) from toasttest;
|
|
substr
|
|
--------
|
|
567890
|
|
567890
|
|
567890
|
|
567890
|
|
(4 rows)
|
|
|
|
DROP TABLE toasttest;
|
|
--
|
|
-- test length
|
|
--
|
|
SELECT length('abcdef') AS "length_6";
|
|
length_6
|
|
----------
|
|
6
|
|
(1 row)
|
|
|
|
--
|
|
-- test strpos
|
|
--
|
|
SELECT strpos('abcdef', 'cd') AS "pos_3";
|
|
pos_3
|
|
-------
|
|
3
|
|
(1 row)
|
|
|
|
SELECT strpos('abcdef', 'xy') AS "pos_0";
|
|
pos_0
|
|
-------
|
|
0
|
|
(1 row)
|
|
|
|
--
|
|
-- test replace
|
|
--
|
|
SELECT replace('abcdef', 'de', '45') AS "abc45f";
|
|
abc45f
|
|
--------
|
|
abc45f
|
|
(1 row)
|
|
|
|
SELECT replace('yabadabadoo', 'ba', '123') AS "ya123da123doo";
|
|
ya123da123doo
|
|
---------------
|
|
ya123da123doo
|
|
(1 row)
|
|
|
|
SELECT replace('yabadoo', 'bad', '') AS "yaoo";
|
|
yaoo
|
|
------
|
|
yaoo
|
|
(1 row)
|
|
|
|
--
|
|
-- test split_part
|
|
--
|
|
select split_part('joeuser@mydatabase','@',0) AS "an error";
|
|
ERROR: field position must be greater than zero
|
|
select split_part('joeuser@mydatabase','@',1) AS "joeuser";
|
|
joeuser
|
|
---------
|
|
joeuser
|
|
(1 row)
|
|
|
|
select split_part('joeuser@mydatabase','@',2) AS "mydatabase";
|
|
mydatabase
|
|
------------
|
|
mydatabase
|
|
(1 row)
|
|
|
|
select split_part('joeuser@mydatabase','@',3) AS "empty string";
|
|
empty string
|
|
--------------
|
|
|
|
(1 row)
|
|
|
|
select split_part('@joeuser@mydatabase@','@',2) AS "joeuser";
|
|
joeuser
|
|
---------
|
|
joeuser
|
|
(1 row)
|
|
|
|
--
|
|
-- test to_hex
|
|
--
|
|
select to_hex(256*256*256 - 1) AS "ffffff";
|
|
ffffff
|
|
--------
|
|
ffffff
|
|
(1 row)
|
|
|
|
select to_hex(256::bigint*256::bigint*256::bigint*256::bigint - 1) AS "ffffffff";
|
|
ffffffff
|
|
----------
|
|
ffffffff
|
|
(1 row)
|
|
|
|
--
|
|
-- MD5 test suite - from IETF RFC 1321
|
|
-- (see: ftp://ftp.rfc-editor.org/in-notes/rfc1321.txt)
|
|
--
|
|
select md5('') = 'd41d8cd98f00b204e9800998ecf8427e' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('a') = '0cc175b9c0f1b6a831c399e269772661' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('abc') = '900150983cd24fb0d6963f7d28e17f72' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('message digest') = 'f96b697d7cb7938d525a2f31aaf161d0' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('abcdefghijklmnopqrstuvwxyz') = 'c3fcd3d76192e4007dfb496cca67e13b' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') = 'd174ab98d277d9f5a5611c2c9f419d9f' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('12345678901234567890123456789012345678901234567890123456789012345678901234567890') = '57edf4a22be3c955ac49da2e2107b67a' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5(''::bytea) = 'd41d8cd98f00b204e9800998ecf8427e' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('a'::bytea) = '0cc175b9c0f1b6a831c399e269772661' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('abc'::bytea) = '900150983cd24fb0d6963f7d28e17f72' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('message digest'::bytea) = 'f96b697d7cb7938d525a2f31aaf161d0' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('abcdefghijklmnopqrstuvwxyz'::bytea) = 'c3fcd3d76192e4007dfb496cca67e13b' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'::bytea) = 'd174ab98d277d9f5a5611c2c9f419d9f' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
select md5('12345678901234567890123456789012345678901234567890123456789012345678901234567890'::bytea) = '57edf4a22be3c955ac49da2e2107b67a' AS "TRUE";
|
|
TRUE
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
--
|
|
-- 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;
|
|
escape_string_warning
|
|
-----------------------
|
|
off
|
|
(1 row)
|
|
|
|
show standard_conforming_strings;
|
|
standard_conforming_strings
|
|
-----------------------------
|
|
off
|
|
(1 row)
|
|
|
|
set escape_string_warning = on;
|
|
set standard_conforming_strings = on;
|
|
show escape_string_warning;
|
|
escape_string_warning
|
|
-----------------------
|
|
on
|
|
(1 row)
|
|
|
|
show standard_conforming_strings;
|
|
standard_conforming_strings
|
|
-----------------------------
|
|
on
|
|
(1 row)
|
|
|
|
select 'a\bcd' as f1, 'a\b''cd' as f2, 'a\b''''cd' as f3, 'abcd\' as f4, 'ab\''cd' as f5, '\\' as f6;
|
|
WARNING: nonstandard use of escape in a string literal at character 8
|
|
HINT: Use the escape string syntax for escapes, e.g., E'\r\n'.
|
|
WARNING: nonstandard use of escape in a string literal at character 23
|
|
HINT: Use the escape string syntax for escapes, e.g., E'\r\n'.
|
|
WARNING: nonstandard use of escape in a string literal at character 40
|
|
HINT: Use the escape string syntax for escapes, e.g., E'\r\n'.
|
|
WARNING: nonstandard use of escape in a string literal at character 59
|
|
HINT: Use the escape string syntax for escapes, e.g., E'\r\n'.
|
|
WARNING: nonstandard use of escape in a string literal at character 76
|
|
HINT: Use the escape string syntax for escapes, e.g., E'\r\n'.
|
|
WARNING: nonstandard use of escape in a string literal at character 93
|
|
HINT: Use the escape string syntax for escapes, e.g., E'\r\n'.
|
|
f1 | f2 | f3 | f4 | f5 | f6
|
|
-------+--------+---------+-------+--------+----
|
|
a\bcd | a\b'cd | a\b''cd | abcd\ | ab\'cd | \\
|
|
(1 row)
|
|
|
|
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;
|
|
WARNING: nonstandard use of \\ in a string literal at character 8
|
|
HINT: Use the escape string syntax for backslashes, e.g., E'\\'.
|
|
WARNING: nonstandard use of \\ in a string literal at character 24
|
|
HINT: Use the escape string syntax for backslashes, e.g., E'\\'.
|
|
WARNING: nonstandard use of \\ in a string literal at character 42
|
|
HINT: Use the escape string syntax for backslashes, e.g., E'\\'.
|
|
WARNING: nonstandard use of \\ in a string literal at character 62
|
|
HINT: Use the escape string syntax for backslashes, e.g., E'\\'.
|
|
WARNING: nonstandard use of \\ in a string literal at character 80
|
|
HINT: Use the escape string syntax for backslashes, e.g., E'\\'.
|
|
WARNING: nonstandard use of \\ in a string literal at character 98
|
|
HINT: Use the escape string syntax for backslashes, e.g., E'\\'.
|
|
f1 | f2 | f3 | f4 | f5 | f6
|
|
-------+--------+---------+-------+--------+----
|
|
a\bcd | a\b'cd | a\b''cd | abcd\ | ab\'cd | \\
|
|
(1 row)
|
|
|
|
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;
|
|
f1 | f2 | f3 | f4 | f5 | f6
|
|
-------+--------+---------+-------+--------+----
|
|
a\bcd | a\b'cd | a\b''cd | abcd\ | ab\'cd | \\
|
|
(1 row)
|
|
|
|
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;
|
|
f1 | f2 | f3 | f4 | f5 | f6
|
|
-------+--------+---------+-------+--------+----
|
|
a\bcd | a\b'cd | a\b''cd | abcd\ | ab\'cd | \\
|
|
(1 row)
|
|
|