Tom Lane wrote:

"D. Stimits" <[EMAIL PROTECTED]> writes:


I'm not looking for an exact answer here, but instead something more "rule of thumb". If I have a table with many fields, and I retrieving small groups of fields during a SELECT, whereby the groups of fields are indexed and/or clustered, will I get a faster select in the left-most fields, or the right-most fields? Or will it not matter?



Fields earlier in the table definition (further to the left) are marginally faster to access than ones further to the right. I doubt it would be real noticeable unless you had hundreds of fields altogether.


Do we still "cache" field offsets for not-nullable-fixed-size columns?



Jan


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