From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgreSQL(dot)org |
Subject: | Re: Anyone particularly wedded to func_tlist mechanism? |
Date: | 2000-08-03 23:22:40 |
Message-ID: | 200008032322.TAA01683@candle.pha.pa.us |
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Lists: | pgsql-hackers |
> I propose removing the tlist from function-call nodes. To handle field
> selection, we should instead invent a separate "FieldSelect" expression
> operator that is applied to the result of the function call, or perhaps
> someday other kinds of expressions that can return tuples. Aside from
> saving space, we'll be able to cleanly represent both the result type of
> the function (ie, the tuple datatype) and the type of the field (which
> will be the result of the FieldSelect node). Right now there's only one
> node field that represents the result type of the function call, so we
> can't remember the actual result type of the function call itself.
I totally agree. That structure is very confusing, and it is hard to
know what they mean.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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