Re: SELECT substring with regex
От | T E Schmitz |
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Тема | Re: SELECT substring with regex |
Дата | |
Msg-id | 44AF7D78.2050007@numerixtechnology.de обсуждение исходный текст |
Ответ на | Re: SELECT substring with regex ("Rodrigo De Leon" <rdeleonp@gmail.com>) |
Ответы |
Re: SELECT substring with regex
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Список | pgsql-sql |
Rodrigo De Leon wrote: > On 7/7/06, T E Schmitz <mailreg@numerixtechnology.de> wrote: > >> Sorry, but that would also capture something like >> 10-30-59mm >> >> The pattern describes either a single length (120 millimeters) or a >> range (30 to 70 millimetres), hence: >> >> \\d+(-\\d+)?mm >> >> The ? quantifier refers to the combination of '-' and digits and has to >> be bracketed. >> >> ... >> >> Still, I'd be interested to know whether there is a 'more elegant' >> solution. > > > OK, last try using regex: > > SELECT > NAME > , substring(NAME, '^(\\d+(-\\d+)?mm)') AS BASE_NAME > , regexp_replace(NAME, '^\\d+(-\\d+)?mm (.*)', '\\2') AS SUFFIX > FROM MODEL Is regexp_replace a new feature? I am running v 7.4. -- Regards, Tarlika
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