> My questions/scenarios are: > > 1. How does PostgreSQL perform when inserting data into an indexed > (type: btree) > table? Is it true that as you add the indexes on a table, the > performance > deteriorates significantly whereas Oracle does not show that much > performance > decrease. I have tried almost all postgreSQL performance tips > available. I want > to have very good "insert" performance (with indexes), "select" > performance is > not that important at this point of time.
-- Did you test? Yes. the performance was comparable when using SQL procedure. However, When I used libpq, PostgreSQL performed very bad. There was some difference in environment also between these 2 tests, but I am assuming libpq vs SQL was the real cause. Or it was something else? > > 2. What are the average storage requirements of postgres compared to > Oracle? I > inserted upto 1 million records. The storage requirement of postgreSQL > is almost > double than that of Oracle. -- What was your table structure? Some 10-12 columns ( like 2 timestamp, 4 int and 4 varchar), with 5 indexes on varchar and int fields including 1 implicit index coz of PK. Joshua D. Drake -- PostgreSQL.org Major Contributor Command Prompt, Inc: http://www.commandprompt.com/ - 509.416.6579 Consulting, Training, Support, Custom Development, Engineering http://twitter.com/cmdpromptinc | http://identi.ca/commandprompt
