Re: Re: postgresql 7.1.1 and textout and textin

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: lockhart(at)fourpalms(dot)org
Cc: Jaume Teixi <teixi(at)6tems(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Re: postgresql 7.1.1 and textout and textin
Date: 2001-06-27 15:04:39
Message-ID: 8294.993654279@sss.pgh.pa.us
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Thomas Lockhart <lockhart(at)fourpalms(dot)org> writes:
>> any points to convert textout and textin to 7.1 ?

> Look in src/backend/utils/adt/ for examples of functions called from
> within other functions. You will want to upgrade to the new calling
> convention for functions, and will need to use some macros and "direct
> call" wrappers to accomplish this.

There are also some useful examples in contrib/. Several contrib
modules have macros like

#define _textin(str) DirectFunctionCall1(textin, CStringGetDatum(str))

#define _textout(str) DatumGetPointer(DirectFunctionCall1(textout, PointerGetDatum(str)))

which work pretty much the same as the old textin() and textout()
functions did.

regards, tom lane

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