Virtual column construction method based on data lake and data query method

An electronic device, comprising:

• a processor and a memory,
• wherein the memory is configured to store instructions or a computer program;
• and
• the processor is configured to execute the instructions or the computer program in the memory, such that the electronic device performs the following virtual column construction operations based on a data lake;
• determining an expression to be used from at least one statement to be analyzed, after acquiring the at least one statement to be analyzed;
• determining virtual column construction description information corresponding to the expression to be used, wherein the virtual column construction description information comprises the expression to be used;
• generating a virtual column construction request, according to the virtual column construction description information corresponding to the expression to be used;
• and
• constructing a virtual column corresponding to the expression to be used, according to the virtual column construction request.

A non-transitory computer-readable storage medium having therein stored instructions or a computer program which, when run on a device, cause(s) the device to perform the following virtual column construction operations based on a data lake:

• determining an expression to be used from at least one statement to be analyzed, after acquiring the at least one statement to be analyzed;
• determining virtual column construction description information corresponding to the expression to be used, wherein the virtual column construction description information comprises the expression to be used;
• generating a virtual column construction request, according to the virtual column construction description information corresponding to the expression to be used;
• and
• constructing a virtual column corresponding to the expression to be used, according to the virtual column construction request.