On Wed, Oct 29, 2008 at 06:10:56AM -0600, John Stanton scratched on the wall:

> The Sqlite B-Tree indices do slow down on insertion as extra levels are 
> created in the index as it grows large.  That is an inherent feature of 
> such structures.

  This can often be mitigated by increasing the size of the page cache.

  A large page cache will speed up the creation of new indexes
  considerably, especially for data that is not already sorted.
  A larger cache can also help with frequent inserts on existing indexes.

  See "PRAGMA cache_size".  If you're working on a modern desktop with
  a comfortable amount of RAM, it isn't unreasonable to increase the
  cache size by an order of magnitude or two (default is 2000).

   -j

-- 
Jay A. Kreibich < J A Y  @  K R E I B I.C H >

"Our opponent is an alien starship packed with atomic bombs.  We have
 a protractor."   "I'll go home and see if I can scrounge up a ruler
 and a piece of string."  --from Anathem by Neal Stephenson
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