[ic] very slow (20 seconds) form search (MV.4.6.3)
Fri, 9 Mar 2001 21:33:37 -0500
Quoting sda sda (firstname.lastname@example.org):
> --- Mike Heins <email@example.com> wrote:
> > Quoting sda sda (firstname.lastname@example.org):
> > > When I used the following form search,
> > >
> > > <FORM ACTION="[area search]">
> > > <INPUT TYPE=hidden NAME=mv_searchtype VALUE=sql>
> > > <select name="mv_search_field">
> > > <option value="title" selected> Titles
> > > <option value="actor">Cast</select>
> > > <INPUT MAXLENGTH=30 NAME=mv_searchspec type=text
> > > size=10>
> > > <INPUT TYPE=hidden NAME=mv_column_op VALUE=rm>
> > >
> > >
> > >
> > > the response time is almost 20 seconds using
> > mysql.
> > > When I checked the log file in mysql,
> > > I noticed that it had 'SELECT * FROM products'
> > > line that is responsible for the delay.
> > > Why is minivend generating this sql command?
> > > Is this a bug? Or, is there another way to
> > > search using form inputs?
> > >
> > > I have 36000 items in products.
> > How is it supposed to do a full-text search without
> > looking at every
> > record, pray tell?
> Shouldn't the query contain 'WHERE' clause such as:
> SELECT * FROM products WHERE title LIKE "%foo%"
> instesd of the time consuming query below?
> SELECT * FROM products
Sure, you can do that. But which SQL will you honor? The ones that
tolerate no %, the ones that won't match with % at the beginning of the
string if that word begins the string, or the ones that do? The ones
that require UPPER() for a case-insensitive match? The ones that have
a regex-capable LIKE?
Interchange supports at least 15 different SQL implementations as well
as non-SQL tables. That is why that needs to be implemented by the person
who knows what SQL they are using. There is no SQL-92 standard for that.
I wish there was -- I would do something with it.
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