Systems and methods for generating a wide table

A method for generating a wide table implemented on a computing device having at least one processor, at least one computer-readable storage medium, and a communication platform connected to a network, comprising:

• obtaining a plurality of sub-tables, each being associated with one or more fields of a target wide table;
• generating a plurality of intermediate tables, each being directly or indirectly based on one or more of the plurality of sub-tables, wherein at least two of the plurality of intermediate tables are generated in parallel, and at least one intermediate table is generated before one or more of the sub-tables are obtained;
• and
• determining the target wide table based on the plurality of intermediate tables.

A non-transitory computer readable medium embodying a computer program product, the computer program product comprising instructions configured to cause a computing system to:

• obtain a plurality of sub-tables, each being associated with one or more fields of a target wide table;
• generate a plurality of intermediate tables, each being directly or indirectly based on one or more of the plurality of sub-tables, wherein at least two of the plurality of intermediate tables are generated in parallel, and at least one intermediate table is generated before one or more of the sub-tables are obtained;
• and
• determine the target wide table based on the plurality of intermediate tables.