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Archives of the TeradataForum
Message Posted: Thu, 07 Mar 2003 @ 01:25:37 GMT
| Subj: | | Re: Column order in Primary index |
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| From: | | John Hall |
I want to correct my last paragraph (I've been painting all day and the can's instructions were right about the fumes ).
The index columns aren't in alphabetical order, but are in the order in which the columns where defined for the table. When a
column is defined, a row for that column is placed in table DBC.TVFIELDS and each column for a table is given a sequential FIELDID
(starting with the value of 1025, then 1026, etc). When the row(s) are inserted into DBC.INDEXES, they refer to the column by its
FIELDID, as defined in DBC.TVFIELDS. So what we're really seeing is that the index columns are listed in FIELDID order.
Sorry about the mistake.
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