Apache Calcite-based data consanguinity and impact analysis method and Apache Calcite-based data consanguinity and impact analysis system

The invention provides a data consanguinity and influence analysis method and system based on Apache Calcite, and the method comprises the steps: obtaining metadata information according to collected metadata, and the metadata information comprises a table and a field; integrating Apache Calcite, performing lexical and grammatical analysis on the SQL character string of the metadata information, and converting the SQL character string into an abstract syntax tree AST; obtaining a relation graph between the table and the field by using an AST (abstract syntax tree); and performing table-level and field-level blood relationship analysis and influence analysis according to the relationship graph. According to the method, multiple different types of database SQL (Structured Query Language) such as Greenplum and GaussDB are analyzed, aiming at different special grammar such as keywords and functions of different databases, the method has high expandability, and the method can support the analysis of the special gr