Re: faster output from php and postgres

Dear god, I saw the word join in his explanation and didn't even read much
after that. I thought he meant join as in join.

Even so, I bet he's still doing something else wrong, I can loop across 50
queries in a blink of an eye. Maybe he's disconnecting / reconnecting on
every access, or worse, just connecting over and over.

I've seen some crazy code in PHP when folks are just beginning. I think I
wrote a bit of it, but that was back when kids got suspended for saying
"I'm using PHP." (<- true story, a kid had a run in with a teacher /
principle, and was nearly suspended for saying that.)

On Fri, 23 May 2003, Lonnie VanZandt wrote:

> The entire report should/could be a single SQL query with multi-table
> joins and order by specifications - but I believe Mukta is doing
> individual table queries and looping over result sets in the PHP code.
> Seeing actual code will help...
>
> -----Original Message-----
> From: pgsql-php-owner(at)postgresql(dot)org
> [mailto:pgsql-php-owner(at)postgresql(dot)org] On Behalf Of scott.marlowe
> Sent: Friday, May 23, 2003 10:04 AM
> To: Mukta Telang
> Cc: pgsql-php(at)postgresql(dot)org
> Subject: Re: [PHP] faster output from php and postgres
>
>
> It's probably just a slow query.
>
> Could you print out your query in PHP to the web browser, then cut and
> paste it into the psql monitor to get an explain anaylze output?
>
> i.e.
> psql dbname
> #> explain analyze select .... rest of query goes here;
>
> And give us the output of that? Thanks.
>
> On Fri, 23 May 2003, Mukta Telang wrote:
>
> > Hi,
> > I am dealing with a database with many-to-many relation and have a php
>
> > script that joins these tables and displays the output. But the
> > problem is that after entering some 50 records the output is very
> > slow! I can count till 50 before the script produces the output!
> > The complete description of the problem is written below..
> > Thanks in advance,
> > Mukta
> >
> >
> >
> >
> > description in detail:
> >
> >
> > database part:
> >
> > Three tables: paper,author and author_paper
> >
> > "A paper has many authors and an author has many papers."
> > In this way there is many to many relation.
> >
> > The attributes of paper are: paper_id (primary key),title,journal,year
>
> > etc
> >
> > The attributes of author are: author_id(primary key) and name
> >
> > The attributes of author_paper are: author_id ,paper_id and level (
> > author with level=1 is the main author of the paper )
> >
> >
> >
> > php part:
> >
> > For an author:
> > 1. get author_id from author table
> > 2. select all paper_ids from author_paper table
> > 3. For each of the above selected paper_ids:
> > a. print all the attributes of paper
> > b. select all authors of the paper and print their names in
> > the order of their "level"
> >
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