Archives of the TeradataForum
Message Posted: Tue, 28 Oct 2003 @ 10:59:37 GMT
Subj: | | What do the following mean ? |
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From: | | Narayan Murthy K S |
What do the following mean ?
1. The result goes into Spool 1 (group_amps), which is built locally on the AMPs.
2. We do an all-AMPs RETRIEVE step from CHK.B by way of an all-rows scan with a condition of ("NOT (CHK.B.b IS NULL)") into
Spool 2 (all_amps), which is redistributed by hash code to all AMPs.
I am looking for answers to the words {Spool 1(group_amps)} and {Spool 2 (all_amps)}.
Narayan
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