Joe Conway <mail@joeconway.com> writes:
> 7.2.1 docs:
> http://www.postgresql.org/idocs/index.php?functions-matching.html#FUNCTIONS-LIKE
> " It's also possible to select no escape character by writing ESCAPE ''.
> In this case there is no way to turn off the special meaning of
> underscore and percent signs in the pattern."
> 7.3 development docs:
> http://developer.postgresql.org/docs/postgres/functions-matching.html#FUNCTIONS-LIKE
> " It's also possible to select no escape character by writing ESCAPE ''.
> This effectively disables the escape mechanism and turns off the special
> meaning of underscore and percent signs in the pattern."
> I think the former is still correct, isn't it?
Yes, as is easily proven by experiment:
regression=# select 'foo' LIKE 'f%';
?column?
----------
t
(1 row)
regression=# select 'foo' LIKE 'f%' escape '';
?column?
----------
t
(1 row)
Who put that change in?
regards, tom lane