At 10:37 AM 1/14/2004 -0500, D. Richard Hipp wrote:
In some cases you can avoid the O(logN) lookup of the
main table entry and just use the index.  For example:

SELECT count(*) FROM table WHERE col1>'abc' AND col1<'xyz';

Wasn't that the original question, Ken? Except it was a count(*) on a JOIN.


Dr Hipp, would the same optimization apply if it is stepping through two indices? In which case Ken should see a huge speed improvement to his original question by adding an index and updating to the latest SQLite (after you release 2.8.11, that is ;).

Just trying to keep track.

michael


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