Marcin Krawczyk escribió: > Hi list, > > I'm trying to use regexp_replace to get rid of all occurrences of > certain sub strings from my string. > What I'm doing is: > > SELECT regexp_replace('F0301 305-149-101-0 F0302 {x1} 12W47 0635H > {tt}{POL23423423}', E'\{.+\}', '', 'g') > > so get rid of whatever is between { } along with these, > > but it results in: > 'F0301 305-149-101-0 F0302 ' > > how do I get it to be: > 'F0301 305-149-101-0 F0302 12W47 0635H' > > ?? > > as I understood the docs, the g flag "specifies replacement of each > matching substring rather than only the first one"
The first \{.+\} match starts at the first { and ends at the last }, eating the {s and }s in the middle. So there's only one match and that's what's removed. > what am I missing ? You need a non-greedy quantifier. Try SELECT regexp_replace('F0301 305-149-101-0 F0302 {x1} 12W47 0635H {tt}{POL23423423}', E'\{.+?\}', '', 'g') -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql