Techniques for identifying semantic change in metadata

An apparatus, comprising:

• one or more memories storing processor-executable code;
• and
• one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the apparatus to:
• generate, at a first time, an ontology defining a structure and one or more relationships between one or more columns across a plurality of tables included in a database of a data management system, wherein the ontology is configured to validate metadata of the database during rolling updates to the database across a plurality of nodes;
• receive, at a second time that is later than the first time, an input to access at least one column of the one or more columns of the database in the data management system, wherein accessing the at least one column corresponds to a semantic change to the metadata of the database;
• determine, in response to the input to access the at least one column of the database in the data management system, whether the ontology is updated to reflect the semantic change to the metadata of the database;
• and
• generate a validation result based at least in part on determining whether the ontology is updated to reflect the semantic change to the metadata of the database.

A non-transitory computer-readable medium storing code, the code comprising instructions executable by one or more processors to:

• generate, at a first time, an ontology defining a structure and one or more relationships between one or more columns across a plurality of tables included in a database of a data management system, wherein the ontology is configured to validate metadata of the database during rolling updates to the database across a plurality of nodes;
• receive, at a second time that is later than the first time, an input to access at least one column of the one or more columns of the database in the data management system, wherein accessing the at least one column corresponds to a semantic change to the metadata of the database;
• determine, in response to the input to access the at least one column of the database in the data management system, whether the ontology is updated to reflect the semantic change to the metadata of the database;
• and
• generate a validation result based at least in part on determining whether the ontology is updated to reflect the semantic change to the metadata of the database.