Can I use mongoimport's upsert to append to an array?

[Román]

Hi everyone.

I have a collection with data structured as:

{ _id : <id>, label : "numeric_id", : lastDataForLabel : { <an
object> }, allDataForLabel : [ <some objects> ] }

The data (potentially lots of it) comes from another component and I'd
like to load it to mongo using mongoimport, for performance reasons.
Each update will have a new lastDataForLabel but I'd like to add that
to the array as well.

Is it possible to do that? I'd use $push, but the documentation for
mongoimport says update modifiers are not allowed.

Also: do I need to use mongoimport? Maybe it's not as fast as I think,
but I'd need a boss-convincing argument for this ;)

Thanks,
Román.

[Scott Hernandez]

You should write your own script. Mongoimport is just a small program
which uses the same protocol as all other drivers and languages; there
is nothing magic about it nor does it provide any serious performance
that you can't achieve with your own program.

You may also find that importing with multiple threads/processes will
reduce the time to do the import. Most of the time the client is the
gating factor in loading data.

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