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Archives of the TeradataForum
Message Posted: Tue, 03 Dec 2002 @ 20:01:40 GMT
| Subj: | | Re: Spool - Whole Row or Required Columns? |
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| From: | | Fenwick, Ruth |
Gary,
I've never seen it documented anywhere, but my experience is that it is the columns requested that will be in spool. That is not to say
that you can easily calculate the size of your spool by multiplying number of rows by size of columns. If there's aggregation or table
joins, they both have a big impact on size of spool. I've seen cases where spool ended up being 3 times what I expected due to all the
joins and aggregation.
Ruth Fenwick
IA&DSS Team Leader, IRM
Hudson's Bay Company
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