Re: extracting words

Tarlika Elisabeth Schmitz wrote:

> I need to extract the words from department_name and product_name
> (words are separated by spaces) and get something like:
> 
> 1 cakes
> 1 desserts
> 1 apple
> 1 crumble
> 2 cakes
> 2 desserts
> 2 cheese
> 2 cake
> 3 starters
> 3 soups
> 3 french
> 3 onion
> 3 soup

regexp_split_to_table is handy (8.3 only):

select pk, regexp_split_to_table(product_name, '[& ]+') from products
union
select pk, regexp_split_to_table(dept_name, '[& ]+') from departments;

Add joins as desired.

-- 
Alvaro Herrera                               
http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 sup****t

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