Re: xpath_list() function - Mailing list pgsql-general

Original Message From Andy Dale

>Hi,

>testdb=# SELECT film_name, xpath_list(description, 'year') FROM filminfo;
>film_name     | xpath_list
>---------------  +------------
>Casablanca      | 1942
>Rear Window   | 1954
>The Godfather | 1972
>Test film          | 1973,1972

>It would seem reasonable in this example that the 1973,1972 gained from
>xpath_list could be reused in a WHERE clause like so

>SELECT film_name WHERE '1973' IN (xpath_list(description, 'year'));

How about SELECT film_name WHERE  (ARRAY['1973'] <@
STRING_TO_ARRAY((xpath_list(description, 'year')), ',' );  ?

(not tested...)

Regards,
George