System, method and computer program product for protecting derived metadata when updating records within a search engine

摘要

A search engine may maintain a list of derived metadata. When an event occurs that requires updating a search index, the search engine can determine which metadata is derived metadata and take appropriate actions with respect to the derived metadata. For example, if a request is received to update the index for a particular object, the search engine may protect the derived metadata from change while updating the other metadata in the index. As another example, if a request is received to update the text content for the object, the search engine may change the text content and the derived metadata. By identifying derived metadata, the search engine can protect the derived metadata from change when a request is received that otherwise causes metadata to change and can change the derived metadata when a request is received that would otherwise not change the metadata portion of the index.

主权项

1. A computerized search system, comprising:
a search engine embodied on non-transitory computer-readable memory and communicatively connected to a client device over a network connection; a processor; a storage unit coupled to the processor and storing a search index; and stored instructions, wherein the stored instructions when translated by the processor cause the search engine to:
parse and analyze an indexing request associated with an object;identify any derived metadata fields in the search index that would be affected by the indexing request;determine whether any of the identified derived metadata fields in the search index that would be affected by the indexing request are within a list or record of protected metadata fields that are to be protected from change; andexecute an indexing command to update the search index with data associated with the object without erasing or modifying values of the derived metadata fields in the search index that have been identified as would be affected by the indexing request and that have been determined to be associated with the list or record of protected metadata fields, the data comprising text, metadata, or both.