Re: dblink: add polymorphic functions.

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On 07/08/2015 08:51 AM, Corey Huinker wrote:
> Questions: Would moving rowtype to the first parameter resolve the
> parameter ambiguity issue?

Not for the existing functions but with new functions I don't think it
matters. You would know to always ignore either the first or last
argument when determining which variant was wanted.

> Would we want new function names anyway?

Yes, see above

> How much of a goal is reducing function count?

Do you mean reducing number of C functions or SQL functions?

> The following suffixes all make a degree of sense to me: _any()
> _to_row() _to_rowtype() _to_recordset() -- borrowing from
> json[b]_to_recordsset() and json[b]_populate_recordset(), the first
> functions polymorphic functions to come to mind.
>
> IMO, _to_recordset() would win on POLA, and _any() would win on
> terse.

The problem is that jsonb_to_recordset() does not behave like these
new dblink functions in that it requires a runtime column definition
list. It might be better to use something completely different, so I
think _any() or maybe _to_any() is better.

Any other ideas for names out there?

Joe

- --
Joe Conway
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