Re: How to unnest an array with element indexes

2014-02-19 21:55 GMT+01:00 AlexK <alkuzo(at)gmail(dot)com>:

> Pavel,
>
> This works for me, thank you!
>
> Presumably foreach is guaranteed to iterate array elements in order: "The
> elements are visited in storage order, regardless of the number of array
> dimensions", quoted from this:
>
> http://www.postgresql.org/docs/9.2/static/plpgsql-control-structures.html
>
> Since parallelism is coming up, will this behavior stay as documented? My
> arrays are as big as 20K-30K elements, maybe more.
>

I cannot to say, what will be in next years - but it is less probable --
plans for parallelism are related for SQL executor internals - like
parallel sort - or parallel hashing.

we have no plans do plpgsql parallel - now works well - and it is relative
simple to maintain it.

Regards

Pavel

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