Hello all,
I'm having some trouble removing quotes from certain parts of my db-queries.
For instance, this is part of a select()-statement:
$select-join(array('m' = 'media'), m.foreignKey = p.id and
m.belongsTo='product', array('mediaType', 'media' = $paths),
$select::JOIN_LEFT);
The on-part of
$select-join(array('m' = 'media'), m.foreignKey = p.id and
m.belongsTo='product', array('mediaType', 'media' = $paths),
$select::JOIN_LEFT);
The on-part of this join produces: `m`.`foreignKey` = `p`.`id` and
`m`.`belongsTo` = `'product'` - the backticks around product are actually
invalid in
Thank you, I will look into those examples.
ralphschindler wrote
And on a related issue: In Zf1 you were able to provide a data-type with
any
query-part, so you were able to actually use optimal data-types for your
database (i.e. an int was treated as int). Now even an int gets quoted,
is, I think, much slower than
select * from xyz where id=534,
especially if the id is datatyped as int in Mysql, and even more so when
there is an index on that column.
Where does mysql document this performance optimization? Everything I
see says this is a micro-optimization at best.
Well, it might be a misconception on my part; however there's this in the
mysql docs:
https://dev.mysql.com/doc/refman/5.5/en/optimize-numeric.html
and there's this thread on stackoverflow:
http://stackoverflow.com/questions/4918512/disadvantages-of-quoting-integers-in-a-mysql-query
So the deal
Hi,
So the deal here (in my case): if I want to join on numeric columns (and
that are datatyped as such in mysql), the conversion doesn't take that much
time in small tables; however, in large ones, it will add up.
It's just that I don't know the reasoning behind the omission of this
feature
I think it does. Thank you so much!
GJ
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