Query

Started by Atulabout 25 years ago2 messagesgeneral
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#1Atul
atulk@newgen.co.in

Hi,

I have a query regarding composite types (user-defined types). I have defined a type alongwith its input and output functions. But I am not able to access the type using my PL/pgSQL function. My type is as follows

typedef struct Sample
{
int nCtr1,
int nCtr2
} Sam;

If anyone has some clue about it please mail back.

My email-id is atulk@newgen.co.in

#2Eric G. Miller
egm2@jps.net
In reply to: Atul (#1)
Re: Query

On Fri, Apr 06, 2001 at 06:57:03PM +0530, Atul wrote:

Hi,

I have a query regarding composite types (user-defined types). I have
defined a type alongwith its input and output functions. But I am not
able to access the type using my PL/pgSQL function. My type is as
follows

typedef struct Sample { int nCtr1, int nCtr2 } Sam;

If anyone has some clue about it please mail back.

PL/PgSQL is not going to be able to look into your structure if that's
what you want. PostgreSQL treats such things as blobs of memory. You
might define accessor functions though...

int4
SampleGetnCtr1 (Sam *s)
{
return s->nCtr1;
}

Etc...

Then, maybe, you can call the function(s) to get/set it's parts...

SELECT sample_get_ctr1(mysample) INTO foo FROM ... ;

--
Eric G. Miller <egm2@jps.net>