Patent attributes
A method, computer program product, and system includes a processor(s) executing a new instruction in place of a left outer join instruction to generate a data set, where the left outer join instruction includes at least two tables and an indication of a column in each the tables to join on. Executing the new instruction includes the processor(s) creating a temporary table including all columns of the at least two tables, where values in fields of the temporary table are null values, executing an inner join instruction, the inner join instruction includes the indication of the column in each of the at least two tables to join on, to create a preliminary results set, and generating the data set, wherein the generating includes the processor(s) overlaying the preliminary results set on the temporary table to update a portion of the null values with values from the preliminary results set.
