On 8/14/21 2:47 PM, Bret Stern wrote:
On 8/14/2021 2:13 PM, Adrian Klaver wrote:
On 8/14/21 2:04 PM, Bret Stern wrote:
Vendors supply dimensions, depending on where in the world the product
comes from, could be metric, imperial
or fraction
Yes, nominal dimensions. That is what I'm trying to work out, is this
something that makes sense to the vendor and should not be tampered with?
The vendor is out of the picture at this point. They provide a catalog,
and we enter (or import) items into our POS system. We match their
dimension within tolerance.
It would seem then a entry system that specifies the initial input
unit(metric, imperial) and then does the conversion to a set unit(my
preference would be metric) for storage to the table in that unit. Then
you would convert on the fly to fill out the display field. Or you could
use something like generated
columns(https://www.postgresql.org/docs/12/ddl-generated-columns.html)
available in Postgres 12+ to pre-fill columns to save the overhead on
subsequent queries. For pre-12 maybe a trigger on the table column to
fill in the other columns. In any case you sort(order by) by your
canonical column which would be of numeric type.
No. Slabs eg granite, slate, dolemite, marble..cut from larger blocks
and delivered in blocks of ten slabs normally, where tolerances are
also +/- .032
I will say this business has been behind in the attributes game. Plus
there are many "artsy" vendors
who can hardly speak in these terms, and don't publish to us, so we do
the best we can.
Getting vendors to supply the basic values is a struggle.
a 32nd or so.
cheers
--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx
