Обсуждение: regexp question
I see that it's possible to select using regexps. Is it possible to use portions of the selection in the result? example... select * from table where column ~ '.*\(blah.*\)' will return any row with characters-blah-characters Is there any way I can get just the blah.* portion of the string in my result? thx andy
Andy Kriger writes: > select * from table where column ~ '.*\(blah.*\)' > will return any row with characters-blah-characters > > Is there any way I can get just the blah.* portion of the string in my > result? Use the substring function. See the documentation on pattern matching. -- Peter Eisentraut peter_e@gmx.net
"Andy Kriger" <akriger@greaterthanone.com> writes: > I see that it's possible to select using regexps. > Is it possible to use portions of the selection in the result? The POSIX version of substring() might do what you want: http://www.ca.postgresql.org/users-lounge/docs/7.3/postgres/functions-matching.html#FUNCTIONS-POSIX-REGEXP I forget whether that's available in any version before 7.3. If not, the next step would be to write a little function in plperl or pltcl to mash the string however you want ... regards, tom lane