Yessica Brinkmann <yessica.brinkmann@xxxxxxxxx> writes:
> I really thought a lot, but I don't understand why but the function fails
> after the expression is executed:
> appendStringInfo (& cols, "% s a.attnum =% d", (i> 0? "OR": ""), idxcd->
> varattno [i]);
I think you're probably shooting yourself in the foot here:
/* pfree() the memory allocated for the previous candidate. FIXME: Avoid
* meddling with the internals of a StringInfo, and try to use an API.
*/
if( cols.len > 0 )
{
pfree( cols.data );
cols.data = NULL;
} /*IF col.len>0*/
Don't do that, use resetStringInfo() instead.
regards, tom lane
