From: Martin Kjeldsen, Sent: 2011/2/25, 20:59
>
> On 25/02/2011, at 13.25, Marti Raudsepp wrote:
>
> > On Fri, Feb 25, 2011 at 05:02, Sam Wong wrote:
> >> * But if I do this - using binding:
> >> $dbh->selectall_arrayref("SELECT * from shipment_lookup WHERE
> >> (UPPER(lookup) LIKE ?)", undef,
On 25/02/2011, at 13.25, Marti Raudsepp wrote:
> On Fri, Feb 25, 2011 at 05:02, Sam Wong wrote:
>> * But if I do this - using binding:
>> $dbh->selectall_arrayref("SELECT * from shipment_lookup WHERE (UPPER(lookup)
>> LIKE ?)", undef, '0GURG5YGVQA9%');
>> It took 10 seconds to finish the query,
On Fri, Feb 25, 2011 at 05:02, Sam Wong wrote:
> * But if I do this - using binding:
> $dbh->selectall_arrayref("SELECT * from shipment_lookup WHERE (UPPER(lookup)
> LIKE ?)", undef, '0GURG5YGVQA9%');
> It took 10 seconds to finish the query, just like it was using full table
> scan instead! Even
I run into performance problem when I pass the condition/variable in binding
ways, however if I put them in the query string it's absolutely fine.
Here is my table and index:
CREATE TABLE shipment_lookup
(
shipment_id text NOT NULL,
lookup text NOT NULL
);
CREATE INDEX shipment_lookup_pre
