Ilja Golshtein wrote:
Sounds like your working with an existing database - if you are starting
from scratch (inserting data into an empty database) then there are
other things that can help too.
I am working with existing database, though I am interested what "other things" you mean.
Basically when adding data to a table some of the time spent inserting
is spent updating indexes.
When starting a database from scratch it is much faster to import the
data and then create the indexes. The time to create index on a full
table is less than the extra time from each index update from the
inserts. The more indexes to update the more time updating indexes takes.
The problem with a live database is removing the indexes slows down
current users and if you are adding 2,000 rows to a table that already
has 5,000,000 rows in it then you will loose the benefit.
--
Shane Ambler
Postgres@xxxxxxxxxxxxxxxx
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