static Datum
PLyString_ToComposite(PLyTypeInfo *info, TupleDesc desc, PyObject *string)
{
	Datum		result;
	HeapTuple	typeTup;
	PLyTypeInfo locinfo;
	PLyExecutionContext *exec_ctx = PLy_current_execution_context();

	/* Create a dummy PLyTypeInfo */
	MemSet(&locinfo, 0, sizeof(PLyTypeInfo));
	PLy_typeinfo_init(&locinfo);

	typeTup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(desc->tdtypeid));
	if (!HeapTupleIsValid(typeTup))
		elog(ERROR, "cache lookup failed for type %u", desc->tdtypeid);

	PLy_output_datum_func2(&locinfo.out.d, typeTup,
						   exec_ctx->curr_proc->langid,
						   exec_ctx->curr_proc->trftypes);

	ReleaseSysCache(typeTup);

	result = PLyObject_ToDatum(&locinfo.out.d, desc->tdtypmod, string);

	PLy_typeinfo_dealloc(&locinfo);

	return result;
}
Beispiel #2
0
void
PLy_output_datum_func(PLyTypeInfo *arg, HeapTuple typeTup)
{
	if (arg->is_rowtype > 0)
		elog(ERROR, "PLyTypeInfo struct is initialized for a Tuple");
	arg->is_rowtype = 0;
	PLy_output_datum_func2(&(arg->out.d), typeTup);
}
Beispiel #3
0
static Datum
PLyString_ToComposite(PLyTypeInfo *info, TupleDesc desc, PyObject *string)
{
	HeapTuple	typeTup;

	typeTup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(desc->tdtypeid));
	if (!HeapTupleIsValid(typeTup))
		elog(ERROR, "cache lookup failed for type %u", desc->tdtypeid);

	PLy_output_datum_func2(&info->out.d, typeTup);

	ReleaseSysCache(typeTup);

	return PLyObject_ToDatum(&info->out.d, info->out.d.typmod, string);
}
Beispiel #4
0
void
PLy_output_tuple_funcs(PLyTypeInfo *arg, TupleDesc desc)
{
	int			i;

	if (arg->is_rowtype == 0)
		elog(ERROR, "PLyTypeInfo struct is initialized for a Datum");
	arg->is_rowtype = 1;

	if (arg->out.r.natts != desc->natts)
	{
		if (arg->out.r.atts)
			PLy_free(arg->out.r.atts);
		arg->out.r.natts = desc->natts;
		arg->out.r.atts = PLy_malloc0(desc->natts * sizeof(PLyDatumToOb));
	}

	Assert(OidIsValid(desc->tdtypeid));

	/*
	 * RECORDOID means we got called to create output functions for an
	 * anonymous record type
	 */
	if (desc->tdtypeid != RECORDOID)
	{
		HeapTuple	relTup;

		/* Get the pg_class tuple corresponding to the type of the output */
		arg->typ_relid = typeidTypeRelid(desc->tdtypeid);
		relTup = SearchSysCache1(RELOID, ObjectIdGetDatum(arg->typ_relid));
		if (!HeapTupleIsValid(relTup))
			elog(ERROR, "cache lookup failed for relation %u", arg->typ_relid);

		/* Remember XMIN and TID for later validation if cache is still OK */
		arg->typrel_xmin = HeapTupleHeaderGetXmin(relTup->t_data);
		arg->typrel_tid = relTup->t_self;

		ReleaseSysCache(relTup);
	}

	for (i = 0; i < desc->natts; i++)
	{
		HeapTuple	typeTup;

		if (desc->attrs[i]->attisdropped)
			continue;

		if (arg->out.r.atts[i].typoid == desc->attrs[i]->atttypid)
			continue;			/* already set up this entry */

		typeTup = SearchSysCache1(TYPEOID,
								  ObjectIdGetDatum(desc->attrs[i]->atttypid));
		if (!HeapTupleIsValid(typeTup))
			elog(ERROR, "cache lookup failed for type %u",
				 desc->attrs[i]->atttypid);

		PLy_output_datum_func2(&(arg->out.r.atts[i]), typeTup);

		ReleaseSysCache(typeTup);
	}
}