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dtSearch .NET Standard API 2021.02
IndexInfo.ObsoleteCount Property

ObsoleteCount is the number of documents for which obsolete information is stored in the index.

public UInt32 ObsoleteCount;

When a document is indexed, modified, then indexed again, information about the document in the index is marked as obsolete and new information about the document is appended to the index. Compressing an index removes all obsolete information.

See also:

Building and Maintaining Indexes

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