Re: patch: function xmltable

From: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To: Craig Ringer <craig(at)2ndquadrant(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: patch: function xmltable
Date: 2016-09-07 06:44:14
Message-ID: CAFj8pRDQ2b8sEoM-TtghRJsEub7Rn8nOK2Z3xz=qyvupZ3e96Q@mail.gmail.com
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>
>
> Suggested comment:
>
> /*
> * This is the parsenode for a column definition in a table-expression
> like XMLTABLE.
> *
> * We can't re-use ColumnDef here; the utility command column
> definition has all the
> * wrong attributes for use in table-expressions and just doesn't make
> sense here.
> */
> typedef struct TableExprColumn
> {
> ...
> };
>
> ?
>
> Why "RawCol" ? What does it become when it's not "raw" anymore? Is
> that a reference to ColumnDef's raw_default and cooked_default for
> untransformed vs transformed parse-trees?
>

My previous reply was wrong - it is used by parser only and holds TypeName
field. The analogy with ColumnDef raw_default is perfect.

Regards

Pavel

>
>
>
>
> --
> Craig Ringer http://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Training & Services
>

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