I have confirmed that INSERT times are roughly logarithmic in
the number of existing records after creating my specific user
indices.
But INSERT times appeared to be *linear* in the number of existing
records before I had created any user indices (and with no primary
keys or unique indices defined).
Can anyone explain this?
Eric
> time (minutes) to insert 2m records
> 10 ++----------+----------+-----------+----------+-----------+---------++
> + + + + A + + +
> 9 ++..................................................AAAA............++
> | AAA AAAAA |
> 8 ++..........................................AAA..AAAAA..............++
> | A AAAA |
> 7 ++.....................A.............A..AAAAAAA.....................++
> | AAAA |
> 6 ++..................AA...........A.AAAAA............................++
> | AAAAAAA |
> 5 ++....................A...AAAAAA....................................++
> 4 ++.........AA.AA..AAAAA.AAAAA.......................................++
> | A AAAAAAA AA |
> 3 ++............AAAA..................................................++
> | AAA A A |
> 2 ++.........AA...........................................AAAAAAAA....++
> | AA |
> 1 ++...AAAAAAA........................................................++
> AAAAAAA + + + + + +
> 0 ++----------+----------+-----------+----------+-----------+---------++
> 0 100 200 300 400 500 600
> millions of existing records
--
Eric A. Smith
A nickel ain't worth a dime anymore.
-- Yogi Berra
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