[LRUG] Speeding up a SQL query
Karl Freeman
karlfreeman at gmail.com
Fri Feb 21 03:34:44 PST 2014
Alongside some great suggestions already one thing I would consider (which
you may off, already) is. Is this sluggishness acceptable for those times
it gets called? (ie could the stakeholder accept this call to 'take a
while') Could these be put elsewhere?.
Karl.
On 21 February 2014 11:30, Tom Stuart <tom at codon.com> wrote:
> On 21 Feb 2014, at 11:22, Andrew Stewart wrote:
> > Does anyone have any tips?
>
> Have you considered precomputing some kind of hash (of the attributes
> whose values you care about) when you create/update the record, and then
> indexing & querying on that? Even if there are collisions, it's probably
> easy to filter them out in Ruby after the query.
>
> Cheers,
> -Tom
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