On Jul 2, 2007, at 6:11 PM, Michael Glaesemann wrote:
On Jul 2, 2007, at 17:45 , Paul Lambert wrote:
tester=# insert into testing (test_text) values ('abcE'\\'123');
This should be
INSERT INTO testing (test_text) values (E'abc\123');
No, that will leave him with the string 'abc23' beinginserted, he
wants the backslash to be included in the string, that's why he had
two, so it should be:
INSERT INTO testing (test_text) values (E'abc\\123');
The help itself (ch 4.1.2.1) tells me to use double backslash
"Thus, to include a backslash character, write two backslashes (\
\). "
Note that the String Constants section (4.1.2.1) says put the E
"before the opening single quote".
http://www.postgresql.org/docs/8.2/interactive/sql-syntax-
lexical.html#SQL-SYNTAX-CONSTANTS
An escape string constant is specified by writing the letter E
(upper or lower case) just before the opening single quote, e.g.
E'foo'.
Also be sure to read the Caution section.
Using \ as an escape character is the old non-standard PostgreSQL
escape syntax that the WARNING (above) is, uh, warning you about.
With standard_conforming_strings on (i.e., follow the SQL spec),
the backslash is just a backslash character.
Which one is the correct syntax and how can I make it not return
anything other than a successful insert?
Depends on the setting of standard_conforming_strings.
With standard_conforming_strings turned on, it would just need to be:
INSERT INTO test (test_text) values ('abc\123');
Michael Glaesemann
grzm seespotcode net
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