String Escaping in Pattern Matching

On Aug 27, 2007, at 5:29 PM, Matthew wrote:

Hey gang,
I have three possible inputs:

18005551212
+18005551212
8005551212

Right now I am using this to strip off the +, 1, or +1:

INSERT INTO ... VALUES(SUBSTRING(usernumber FROM '^\\+?1?(.*)'));

This works perfect but I get all of these in the log:

WARNING: nonstandard use of \\ in a string literal at character 181

If I change to this as per the doc example right above the 9.7.3
header
on this page:
http://www.postgresql.org/docs/8.2/static/functions-matching.html

SUBSTRING(usernumber FROM '^#+?1?(.*)' FOR '#')

I get NULL inserted but no WARNING's.

A point if the right direction would be appreciated.

Try

INSERT INTO ... VALUES(SUBSTRING(usernumber FROM E'^\\+?1?(.*)'));

Erik Jones

Software Developer | Emma®
erik@myemma.com
800.595.4401 or 615.292.5888
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