well at the very least you want to ensure that executemany() is being
used for the inserts (i.e. with sqlalchemy, dont use ORM, use
connection.execute(statement, [param, param, param...]).

If you use SQLAlchemy's "executemany()" facilities, we've just
increased their efficiency by about 60% in the 0.4.0beta3 release, we
had some huge latency issues with this particular operation
previously.

faster still is to use raw DBAPI:

conn = engine.connect()
conn.connection.executemany(statement, [params...])

using "copy from..file" is probably very fast, but its a little weird
to use that in the context of a web request.


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