David G Johnston wrote > > twoflower wrote >> Source: 123 source text >> Target: 123 target text >> Source pattern: ([0-9]+) source text >> Target pattern: $1 target text >> >> Still, isn't there some super clever way to do that? > You use "\1" instead of "$1" > > SELECT regexp_replace('123 abc','(\d+)\s(\w+)','\1 def'); --output: '123 > def' > > http://www.postgresql.org/docs/9.3/static/functions-matching.html#FUNCTIONS-POSIX-REGEXP > > 9.7.3 - paragraph beginning "The regexp_replace function provides > substitution..." > > David J. <reading this a few more times> Is it possible to express the WHERE clause as: regexp_replace(source, source_pattern, target_pattern) = target maybe with a substring check instead of equals? David J. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Emulating-flexible-regex-replace-tp5824034p5824065.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general