Function par_join_clause

src/gpre/sqe.cpp:2098–2126

//

static gpre_ctx* par_join_clause( gpre_req* request, gpre_ctx* context1)
{
	assert_IS_REQ(request);

	const nod_t join_type = par_join_type();
	if (join_type == nod_nothing)
		return context1;

	gpre_ctx* context2 = par_joined_relation(request);
	if (!context2)
		CPR_s_error("<joined table clause>");

	if (!MSC_match(KW_ON))
		CPR_s_error("ON");

	gpre_nod* node = SQE_boolean(request, NULL);

	gpre_rse* selection = (gpre_rse*) MSC_alloc(RSE_LEN(2));
	selection->rse_count = 2;
	selection->rse_context[0] = context1;
	selection->rse_context[1] = context2;
	selection->rse_boolean = node;
	selection->rse_join_type = join_type;

	context1 = MSC_context(request);
	context1->ctx_stream = selection;

	return par_join_clause(request, context1);
}


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