Subject MySQL Vs PostgreSQL Vs IB
Author Phil Shrimpton
Hi,

(Yet another link, sorry <g>)

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PC Week Labs cautions that MySQL shouldn't be compared with higher-end
databases, such as InterBase or PostgreSQL. It's a fundamentally different
product with different design goals.
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We did run just an online transaction processing single-read test with a
single user. MySQL really smoked, clocking 649 transactions per second, a
result that's about four times faster than InterBase's throughput and more
than 10 times faster than PostgreSQL's throughput at the same user load and
workload.
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To me that is

MySQL = 649 Transactions per second
Interbase = 162.25 tps
PostgreSQL = 64.9 tps

http://www.zdnet.com/enterprise/stories/linux/news/0,6423,2436155,00.html

Cheers

Phil