Jesper Krogh wrote:
Tom Lane wrote:
Jesper Krogh <jes...@krogh.cc> writes:
Shouldnt the like operator do the same as the = if there occours no
wildcards and stuff in the string?
If there are also no escape characters, then yeah.
FWIW, 8.4 will complain about this case:
regression=# select E'\\' like E'\\';
ERROR: LIKE pattern must not end with escape character
So I cannot rely on the like operator to behave correct if I'd like to
compare strings with backslashes (e.g. filepaths from MS Windows
filesystems)?
I actually get the same if it doesnt end with the slashes:
testdb=# select E'\\t' like E'\\t';
?column?
----------
f
(1 row)
testdb=# select E'\\t' = E'\\t';
?column?
----------
t
(1 row)
Ok. The pattern has to be "double escaped"..
testdb=# select E'\\t' like E'\\\\t';
?column?
----------
t
(1 row)
(for the archives a ref to the documentations i didnt get by the read
through)
http://www.postgresql.org/docs/8.2/static/functions-matching.html#FUNCTIONS-LIKE
--
Jesper
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