>
>
>
> On Thu, Oct 30, 2003 at 01:15:44AM +0530, mallah@trade-india.com wrote:
>> Actually PostgreSQL is at par with MySQL when the query is being Properly Written(simplified)
>>
>> In mysql:
>> mysql> SELECT DISTINCT main.* FROM Groups main join Principals Principals_1 using(id) join
>> ACL ACL_2 on (ACL_2.PrincipalId = Principals_1.id)
>
> Interesting, last time I looked, this syntax wasn't valid on mysql. And I'm not familiar with
> the "using(id)" notation. Can you point me at proper docs on it?
I am using MySQL 4.0.16 the latest stable one.
Docs
MySQL: http://www.mysql.com/doc/en/JOIN.html
Postgresql:
well i am not able to point out a dedicated page for this topic
in pgsql document but below covers it a bit.
http://www.postgresql.org/docs/7.3/static/sql-select.html
Join i beleive are SQL standard feature and better docs shud exist.
>
>
>>
>> So its not just PostgreSQL that is suffering from the bad SQL but MySQL also. But the question
>> is my does PostgreSQL suffer so badly ??
>> I think not all developers write very nice SQLs.
>>
>> Its really sad to see that a fine peice of work (RT) is performing sub-optimal becoz of
>> malformed SQLs. [ specially on database of my choice ;-) ]
>
> Can you try using SearchBuilder 0.90? That made certain optimizations to the postgres query
> builder that got backed out in 0.92, due to a
> possible really bad failure mode. Thankfully, because all of this is machine generated SQL we
> can just improve the generator, rather than having to retool the entire application.
True, Its really a pleasure to see that in DBIx/SearchBuilder/Handle/Pg.pm
Database Specific optimisations can be done easily Congratulations on writing
SearchBuilder in such an well structured manner. mine is .92 just going to try .90 as u are
suggesting and will post back the result.
>
>
> --
> jesse reed vincent -- root@eruditorum.org -- jesse@fsck.com
> 70EBAC90: 2A07 FC22 7DB4 42C1 9D71 0108 41A3 3FB3 70EB AC90
>
> "If IBM _wanted_ to make clones, we could make them cheaper and faster than anyone else!" - An
> IBM Rep. visiting Vassar College's Comp Sci Department.
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