I’m working with dummy data with int columns.
products: 70,000 random ints with another 30,000 that are dupes from the 70,000
volume: ranges from 500 – 1000
price: ranges from 10 – 50 though the price stays within bounds of 1-5 diff for each product row data.
from the above, 10mm rows are created by randomly selecting a product and generating the required row data
running a range query like…
select * from productdata where product >= 1500 and product <= 2000
takes about 4 seconds.
When I add an index on product using…
create index productindex on productdata(product)
The query now takes about 30 seconds. Time is the only unique column in the table but setting that as the primary key does not help either.
On SQL Server and PostgreSQL I don’t see the same issues with the same data and query using a non clustered index in each. I only really have experience with writing queries for SQL Server so a bit perplexed by this. I tried PostgreSQL as well to have another db to compare to.
All databases are the latest stable versions available.
✓ Extra quality
ExtraProxies brings the best proxy quality for you with our private and reliable proxies
✓ Extra anonymity
Top level of anonymity and 100% safe proxies – this is what you get with every proxy package
✓ Extra speed
1,ooo mb/s proxy servers speed – we are way better than others – just enjoy our proxies!
USA proxy location
We offer premium quality USA private proxies – the most essential proxies you can ever want from USA
Our proxies have TOP level of anonymity + Elite quality, so you are always safe and secure with your proxies
Use your proxies as much as you want – we have no limits for data transfer and bandwidth, unlimited usage!
Superb fast proxy servers with 1,000 mb/s speed – sit back and enjoy your lightning fast private proxies!
99,9% servers uptime
Alive and working proxies all the time – we are taking care of our servers so you can use them without any problems
No usage restrictions
You have freedom to use your proxies with every software, browser or website you want without restrictions
Perfect for SEO
We are 100% friendly with all SEO tasks as well as internet marketing – feel the power with our proxies
Buy more proxies and get better price – we offer various proxy packages with great deals and discounts
We are working 24/7 to bring the best proxy experience for you – we are glad to help and assist you!