PHP mysql data result set compression

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Hi all- is there a way have a large data result set from MySQL compressed?
E.g. I have a table with over a million rows of data that I want to do a
"select * from " on and then take that result, do some field/data
manpulation, and then insert row-by-row to another table.  The problem is
the result of the query is so big that it's casuing PHP to swap to disk,
causing things to slow to a crawl.  Doing a "show processlist" on the mysql
console shows that "Writing to net" is the state of the running "select *
from " query.  I tried adding the flag "MYSQL_CLIENT_COMPRESS" to both
mysql_pconnect() and mysql_connect() but it doesn't seem to do any
compression (I can tell by the size of the running php memory process).  Any
ideas would be appreciated- thanks.

David

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