QUERY PLAN GENERATION FOR SPLIT TABLE QUERY OPERATIONS

摘要

A system for generating a query plan is provided. In some implementations, the system performs operations comprising: determining that a first query operation is a full table query operation, the full table query operation comprising a query operation operating on a database table as a whole; determining that a second query operation is a split table query operation, the split table query operation comprising a plurality of parallel query operations each operating on a portion of the database table; and inserting, based on the first query operation being a full table query operation and the second query operation being a split table query operation, a switch operation between the first and the second query operation, the switch operation being configured to distribute data output by the first query operation to the plurality of parallel query operations comprising the second query operation. Related methods and articles of manufacture are also described.