Date: Tue, 22 Apr 2008 22:25:04 +0100
From: Tarlika Elisabeth Schmitz <postgresql@numerixtechnology.de>
To: pgsql-sql@postgresql.org
Subject: extracting words
Message-ID: <20080422222504.56bdb06d@dick.coachhouse>
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I am not quite sure whether this would be sensible or indeed at
all possible to do in SQL:

TABLE product: product_pk,  product_name, department_fk
TABLE product: department_pk,  department_name

example data:

SELECT product_pk, department_name, product_name ... LEFT JOIN ...:

1, "cakes & desserts", "apple crumble"
2, "cakes & desserts", "cheese cake"
3, "starters & soups", "french onion soup"


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


Would it be more sensible to produce a table join and split the result
into keywords programmatically?


--


Best Regards,

Tarlika Elisabeth Schmitz


A: Because it breaks the logical sequence of discussion
Q: Why is top posting bad?