Top-k information push down in query plan including inner join

Abstract

Various example embodiments described herein provide for systems, methods, devices, instructions, and the like for optimizing a query plan to execute a query by using early row flush and pushing down top-k information in a query plan that includes an inner join, which can be used within a data platform environment. In particular, various example embodiments use early flush operations by one or more aggregation operators to eventually enable information from a top-k operator of a query plan to be pushed down the query plan and through one or more inner join operators of the query plan to one or more select operators (e.g., aggregation operators and table scan operators) positioned below the one or more inner join operators.