Function PASS1_expand_contexts

src/dsql/pass1.cpp:965–981

Extract relation and procedure context and expand derived child contexts.

// Extract relation and procedure context and expand derived child contexts.
void PASS1_expand_contexts(DsqlContextStack& contexts, dsql_ctx* context)
{
	//// TODO: LocalTableSourceNode
	if (context->ctx_relation || context->ctx_procedure ||
		context->ctx_map || context->ctx_win_maps.hasData())
	{
		if (context->ctx_parent)
			context = context->ctx_parent;

		contexts.push(context);
	}
	else
	{
		for (DsqlContextStack::iterator i(context->ctx_childs_derived_table); i.hasData(); ++i)
			PASS1_expand_contexts(contexts, i.object());
	}
}


// Process derived table which is part of a from clause.