Kouba Tomas wrote:

> nevim, zda nejsme trochu off-topic, ale mozna prave to, ze Oracle
> InnoDB koupil je spise dukazem toho, ze MySQL je velmi kvalitni
> databaze, ne? :-) 

Schvalne jsem vystrachal kus prispevku z roku 2001 v comp.databases, 
kde Heikki Tuuri vysvetluje, proc implementoval InnoDB do MySQL 
a ne do PostrgreSQL:

The first reason was that in MySQL there is a standardized interface 
to lower level storage managers (called table handlers in MySQL) which 
MyISAM, BDB, and InnoDB use. I have not studied PostgreSQL 
source at that detail, but the object-relational features 
there may require something extra from the storage manager. 

Another reason is speed: InnoDB was designed to be the fastest 
disk-based database engine in the world. Also MySQL SQL interpreter 
is fast. The combination MySQL/InnoDB is thus only 30 % slower than 
a standalone InnoDB and in many tests faster than the standard table 
type of MySQL. 

[...]

The third reason was that Monty Widenius, the writer of MySQL 
lives in the same town as I :). 


> Muj povrchni odhad je , ze vice jak polovina web
> aplikaci pouziva MySQL. To je snad take dukaz neceho...

A dival ses nekdy, jake verze MySQL napr. ISP provozuji
a  s jakym enginem? Vetsinou jsou to verze 4.1 s MyISAM...


pf

Odpovedet emailem