Re: [mmoncure@gmail.com: Re: [GENERAL] array_to_set functions] - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [mmoncure@gmail.com: Re: [GENERAL] array_to_set functions]
Date
Msg-id 200803121514.m2CFEd812654@momjian.us
Whole thread Raw
In response to Re: [mmoncure@gmail.com: Re: [GENERAL] array_to_set functions]  ("Merlin Moncure" <mmoncure@gmail.com>)
List pgsql-hackers
Added to TODO:

* Add array_accum() and array_to_set() functions for arrays
 http://archives.postgresql.org/pgsql-hackers/2007-08/msg00464.php


---------------------------------------------------------------------------

Merlin Moncure wrote:
> On 8/14/07, Bruce Momjian <bruce@momjian.us> wrote:
> >
> > TODO item?
> 
> I would say yes...array_accum is virtually an essential function when
> working with arrays and the suggested array_to_set (and it's built in
> cousin, _pg_expand_array) really should not be built around
> generate_series when a C function is faster and will scale much
> better.
> 
> array_to_set, as suggested in SQL, is something only a relative expert
> with PostgreSQL could be expected to write.
> 
> Thus could generate_series be relieved from providing the only core
> function for set returning functions in the documentation.  IMO, this
> part of the documentation could use some expansion anyways :)
> 
> merlin
> 
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--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://postgres.enterprisedb.com
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