The row order of every node of the query (PLAN ยง11.4), from its inputs'
through QueryNode.outputOrder: undefined when it can't be known (an
Unknown node, or a node fed by one). The emitter writes a sort where an
order is used, and the Sort warning reads it, so the two never disagree.
The row order of every node of the query (PLAN ยง11.4), from its inputs' through
QueryNode.outputOrder:undefinedwhen it can't be known (an Unknown node, or a node fed by one). The emitter writes a sort where an order is used, and the Sort warning reads it, so the two never disagree.