Re: Function Overloading

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: ramsiddu007 <ramsiddu007(at)gmail(dot)com>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Function Overloading
Date: 2018-05-24 13:52:31
Message-ID: 23422.1527169951@sss.pgh.pa.us
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ramsiddu007 <ramsiddu007(at)gmail(dot)com> writes:
> I hope you are all doing good. Actually I got one problem. I
> have 2 functions like below. Those are having 11 and 14 parameters with
> commonly last parameter is variadic array type.

> func_get_item_list_phy_param(smallint, numeric, numeric, character varying,
> character varying, character varying, numeric, character varying, integer,
> integer, character varying[]);

> func_get_item_list_phy_param(smallint, numeric, numeric, character varying,
> character varying, character varying, numeric, character varying, integer,
> integer, character varying, character varying, character varying, character
> varying[]);

Don't do that. There's no way for the system to figure out which one it
should call if you have >= 14 actual parameters, because they both match
the call equally well.

regards, tom lane

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