justinborromeo edited a comment on issue #6088: Scan query: time-ordering URL: https://github.com/apache/incubator-druid/issues/6088#issuecomment-458773614 The way Scan is written now, the "scan query doesn't retain all rows in memory before rows can be returned to client" (http://druid.io/docs/latest/querying/scan-query.html) and the design of the code reflects this. Afaik, the proposed implementation for the time-ordering feature would require the broker to store all the returned rows either in memory or on disk before it could start returning rows in a sorted order. It seems that this would violate the main principle behind Scan...is this time-ordering feature something that's appropriate for Scan or am I misunderstanding something?
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