Re: How to assemble all fields of (any) view into a string?

On 09/07/2016 01:15 PM, Ken Tanzer wrote:
> Hi. Using version 9.2. I'm trying to create a function that will take
> a record from any view and assemble it into a string, for export to
> another system. For example, this view:
>
>> \d ebh_gain
> View "public.ebh_gain"
> Column | Type | Modifiers
> -------------------+---------------+-----------
> reporting_unit_id | character(3) |
> case_id | character(10) |
> event_date | character(8) |
> ids_score | character(1) |
> eds_score | character(1) |
> sds_score | character(1) |
> kc_auth_number | integer |
> king_county_id | integer |
>
> would get converted into a string with all the fields concatenated
> together, and space-padded to their full lengths.

I think an example is needed. I was thinking you wanted the field values
transformed, but the below seems to indicate something different.

>
> My original idea was to do this in TCL by passing a record and a view
> name. The function would then look up the columns in the
> information_schema, and use that info to assemble and return the
> string. But it looks like TCL functions won't accept a record as an
> argument.
>
> Any suggestions or advice most welcome. Thanks!
>
> Ken
> --
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--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com