normalizing & join to table function

Hello,
Need some help. Hoping some of the smart people might know how to solve this.

I'd like to replace all name/value pairs in a delimited string with the id of the name/value pair in my reference table.
Eg
St=IL&city=Chicago&street=Madison
To
13&50&247
Assuming St=IL is id 13, city=Chicago=50, street=Madison=247

My process is working but it's taking too long to convert the string to rows. Any ideas for swaping out the cursor for a sql trick?
Thanks in advance
Doug

I'm currently cursoring thru the input rows, and then converting the string to rows using 1st array_to_string, now explode_array.
-- Current code
sql_cmd := ' SELECT hash_page , log_cs_uri_query FROM dim_wtlog_page_temp ';
FOR recset IN EXECUTE sql_cmd LOOP
insert into pagetag_temp (hash_page, wtlog_tagvalue_text)
select recset.hash_page ,qry.* as wtlog_tagvalue_text
from explode_array (string_to_array(recset.log_cs_uri_query,'&') ) qry ;
END LOOP;

create or replace function explode_array( in_array anyarray)
returns setof anyelement as
$$
select ($1)[s] from generate_series(1,array_upper($1, 1)) as s;
$$
language sql immutable;

Doug Little

Sr. Data Warehouse Architect | Business Intelligence Architecture | Orbitz Worldwide
500 W. Madison, Suite 1000 Chicago IL 60661| Office 312.260.2588 | Fax 312.894.5164 | Cell 847-997-5741
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