A method, device, medium and electronic device for index query based on syntax tree

Abstract

The embodiment of the present application discloses a method, device, medium and electronic device for index query based on syntax tree. Among them, the method includes: receiving an SQL query statement passed in by the target platform; extracting the incoming parameters of the SQL query statement through a standard interface, and assembling the incoming parameters into syntax tree parameters to generate a syntax tree to be processed; retrieving the information of the syntax tree to be processed, and determining that the query index corresponding to the information of the syntax tree to be processed is a predefined simple index and / or a composite index; assembling and generating a query syntax tree according to the translation results of the simple index and / or the translation results of the composite index to query the target database, and returning the results to the target platform. Through this technical solution, non-R&D users can directly query by simply defining in the interface, saving time for users to analyze and improving data utilization.

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