Re: Some basic ecpg questions

On Wed, Mar 20, 2002 at 07:08:28PM -0500, Murphy Pope wrote:
> 1) It looks like I have to define each data type twice: once for ecpg and once for C. Is that correct or is there something basic that I am missing?

I just committed some patches for this. Up to postgresql version 7.2
this is correct.

> 2) I could not seem to include a varchar inside of a struct - the ecpg preprocessor got confused by that. My construct looked something like:
>
> typedef struct
> {
> int id;
> varchar data[50];
> } foo;

C does not know varchar at all.

> When I tried to declare a 'foo' inside of the DECLATION SECTION, ecpg seemed to produce some code that my GNU CC didn't understand. (If it would help, I can send in the actual source and resulting .c file).

Please try the actual CVS version as this part was just changed earlier
today.

> 3) If I use EXEC SQL TYPE to declare a structure, it doesn't look like I can use an array of these structures to retreive multiple rows. Using the previous example structures, I want to do something like:
>
> EXEC SQL BEGIN DECLARATION SECTION;
> foo records[5];
> EXEC SQL END DECLARATION SECTION;
>
> EXEC SQL select * into :records from bar limit 5;

Did you EXEC SQL TYPE datatype foo?

If so, please send me a simple example file I I can reproduce this.

Michael
--
Michael Meskes
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