I was using copy command to load. Removing the primary key constraint on the table and then loading it helps a lot. In fact, a 400GB table was loaded and the primary constraint was added in around 15 hours. Thanks for the wonderful suggestions.
Regards,
Srinivas Karthik
On 28 Jun 2018 2:07 a.m., "Don Seiler" <don@seiler.us> wrote:
Other parameters are set to default value. Moreover, I have specified the primary key constraint during table creation. This is the only possible index being created before data loading and I am sure there are no other indexes apart from the primary key column(s).
When doing initial bulk data loads, I would suggest not applying ANY constraints or indexes on the table until after the data is loaded. Especially unique constraints/indexes, those will slow things down A LOT.